TY  - CONF
AU  - Mladenović, Ivana
AU  - Obradov, Marko
AU  - Rašljić-Rafajilović, Milena
AU  - Jakšić, Zoran
AU  - Jakšić, Olga
AU  - Vasiljević Radović, Dana
AU  - Lamovec, Jelena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7520
AB  - Plasmonic  biochemical  sensors,  as  a  subgroup  of  optical  refractometric  sensors,  are  a  topic  of  rapid  research  and  development  due  to  their  ability  to  detect  trace  amounts  of  biochemical agents, even allowing detection of a single molecule. As such, plasmonic sensors find wide  applications  in  forensic  engineering,  medicine  and  clinical  diagnostics,  food  processing,  environmental protection, and many more. Additionally, the use of plasmonic metametrials is not limited to sensing, and they can be used in various fields paramount to forensic sciences, such  as  enhanced  microscopy  and  spectroscopy,  photodetector  enhancement  (entire  optical  range – UV, VIS, and IR light), signal processing, etc.
PB  - Belgrade : University of Criminal Investigation and Police Studies
C3  - XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia
T1  - Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications
SP  - 79
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_cer_7520
ER  - 

@conference{
author = "Mladenović, Ivana and Obradov, Marko and Rašljić-Rafajilović, Milena and Jakšić, Zoran and Jakšić, Olga and Vasiljević Radović, Dana and Lamovec, Jelena",
year = "2023",
abstract = "Plasmonic  biochemical  sensors,  as  a  subgroup  of  optical  refractometric  sensors,  are  a  topic  of  rapid  research  and  development  due  to  their  ability  to  detect  trace  amounts  of  biochemical agents, even allowing detection of a single molecule. As such, plasmonic sensors find wide  applications  in  forensic  engineering,  medicine  and  clinical  diagnostics,  food  processing,  environmental protection, and many more. Additionally, the use of plasmonic metametrials is not limited to sensing, and they can be used in various fields paramount to forensic sciences, such  as  enhanced  microscopy  and  spectroscopy,  photodetector  enhancement  (entire  optical  range – UV, VIS, and IR light), signal processing, etc.",
publisher = "Belgrade : University of Criminal Investigation and Police Studies",
journal = "XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia",
title = "Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications",
pages = "79-80",
url = "https://hdl.handle.net/21.15107/rcub_cer_7520"
}

Mladenović, I., Obradov, M., Rašljić-Rafajilović, M., Jakšić, Z., Jakšić, O., Vasiljević Radović, D.,& Lamovec, J.. (2023). Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications. in XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia
Belgrade : University of Criminal Investigation and Police Studies., 79-80.
https://hdl.handle.net/21.15107/rcub_cer_7520

Mladenović I, Obradov M, Rašljić-Rafajilović M, Jakšić Z, Jakšić O, Vasiljević Radović D, Lamovec J. Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications. in XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia. 2023;:79-80.
https://hdl.handle.net/21.15107/rcub_cer_7520 .

Mladenović, Ivana, Obradov, Marko, Rašljić-Rafajilović, Milena, Jakšić, Zoran, Jakšić, Olga, Vasiljević Radović, Dana, Lamovec, Jelena, "Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications" in XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia (2023):79-80,
https://hdl.handle.net/21.15107/rcub_cer_7520 .

TY  - CONF
AU  - Pergal, Marija
AU  - Rašljić-Rafajilović, Milena
AU  - Vićentić, Teodora
AU  - Mladenović, Ivana
AU  - Ostojić, Sanja
AU  - Spasenović, Marko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6740
AB  - Laser-induced graphene (LIG) has recently been proposed as a viable option for fabricating
various types of flexible electronic devices due to its excellent mechanical stability and
electrical properties. During laser induction of graphene on polymers, the high temperature
generated with the laser breaks C-O, C=O, and N-C bonds in polymers, leading to the
recombination of C and N atoms. Additionally, the rapid release of carbonaceous and nitric gases results in the formation of 3D porous structures. This approach offers a one-step,
chemical-free synthesis method for producing porous graphene on polymer surfaces.
Moreover, it is a fast and cost-effective technique that is ideal for flexible electronics and
energy storage devices. In this study, graphene was formed on a poly(dimethylsiloxane)
(PDMS)/Triton substrate with varying concentrations of Triton (1-30 wt.%) using CO2 laser
irradiation. The effects of Triton content on the structural, thermal, and surface characteristics
of PDMS/Triton and PDMS/Triton/graphene materials were investigated. The prepared
PDMS/Triton/graphene materials were thoroughly examined using X-ray diffraction analysis
(XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and
water contact angle analysis. XRD analysis confirmed the presence of graphene in the
material. The thermal and surface properties of the proposed materials can be easily adjusted
by manipulating the Triton concentration. The hydrophilicity of the prepared PDMS/Triton
materials increased compared to pure PDMS, which is hydrophobic. It was found that the
success of LIG formation depends on Triton content, increasing with higher concentration of
Triton in the PDMS matrix. The presented results aim to address the existing challenges
associated with stretchable polymers suitable for flexible electronic device applications.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Structural and thermal properties of PDMS/Triton/laser-induced graphene composites
SP  - 59
EP  - 60
UR  - https://hdl.handle.net/21.15107/rcub_cer_6740
ER  - 

@conference{
author = "Pergal, Marija and Rašljić-Rafajilović, Milena and Vićentić, Teodora and Mladenović, Ivana and Ostojić, Sanja and Spasenović, Marko",
year = "2023",
abstract = "Laser-induced graphene (LIG) has recently been proposed as a viable option for fabricating
various types of flexible electronic devices due to its excellent mechanical stability and
electrical properties. During laser induction of graphene on polymers, the high temperature
generated with the laser breaks C-O, C=O, and N-C bonds in polymers, leading to the
recombination of C and N atoms. Additionally, the rapid release of carbonaceous and nitric gases results in the formation of 3D porous structures. This approach offers a one-step,
chemical-free synthesis method for producing porous graphene on polymer surfaces.
Moreover, it is a fast and cost-effective technique that is ideal for flexible electronics and
energy storage devices. In this study, graphene was formed on a poly(dimethylsiloxane)
(PDMS)/Triton substrate with varying concentrations of Triton (1-30 wt.%) using CO2 laser
irradiation. The effects of Triton content on the structural, thermal, and surface characteristics
of PDMS/Triton and PDMS/Triton/graphene materials were investigated. The prepared
PDMS/Triton/graphene materials were thoroughly examined using X-ray diffraction analysis
(XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and
water contact angle analysis. XRD analysis confirmed the presence of graphene in the
material. The thermal and surface properties of the proposed materials can be easily adjusted
by manipulating the Triton concentration. The hydrophilicity of the prepared PDMS/Triton
materials increased compared to pure PDMS, which is hydrophobic. It was found that the
success of LIG formation depends on Triton content, increasing with higher concentration of
Triton in the PDMS matrix. The presented results aim to address the existing challenges
associated with stretchable polymers suitable for flexible electronic device applications.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Structural and thermal properties of PDMS/Triton/laser-induced graphene composites",
pages = "59-60",
url = "https://hdl.handle.net/21.15107/rcub_cer_6740"
}

Pergal, M., Rašljić-Rafajilović, M., Vićentić, T., Mladenović, I., Ostojić, S.,& Spasenović, M.. (2023). Structural and thermal properties of PDMS/Triton/laser-induced graphene composites. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 59-60.
https://hdl.handle.net/21.15107/rcub_cer_6740

Pergal M, Rašljić-Rafajilović M, Vićentić T, Mladenović I, Ostojić S, Spasenović M. Structural and thermal properties of PDMS/Triton/laser-induced graphene composites. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:59-60.
https://hdl.handle.net/21.15107/rcub_cer_6740 .

Pergal, Marija, Rašljić-Rafajilović, Milena, Vićentić, Teodora, Mladenović, Ivana, Ostojić, Sanja, Spasenović, Marko, "Structural and thermal properties of PDMS/Triton/laser-induced graphene composites" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):59-60,
https://hdl.handle.net/21.15107/rcub_cer_6740 .

TY  - CONF
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Rašljić-Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6759
AB  - Metasurfaces are one of the most attractive research fields in recent years, in no small measure due to their use as refractometric sensors with unparalleled sensitivity, enabling sensing of even single atoms or molecules. This sensitivity is rooted in their ability to localize electromagnetic fields in volumes orders of magnitude below the diffraction limit. This is achieved by special geometry and refractive index contrast of metasurface nanocomposites. A plethora of both conductive (metals, TCO, graphene, MXenes...) and dielectric (oxides, semiconductors) materials can be used, all of them bringing different functionalities which further enhance the freedom of design when tailoring metasurfaces. However, the fundamental sensing mechanism is practically identical across all platforms and is based on the spectral shift of transmission or reflection due to a difference in the values of the real parts of refractive index between analyte and the environment. 
Here we propose an alternative approach, the use of exceptional capabilities of optical metasurfaces in transforming optical space to sense analytes with identical real parts of refractive index but different imaginary parts (losses). This is becoming increasingly important with the need to detect airborne viruses. We propose a metasurface formed by cruciform openings in a thin silicon layer on a SiO2 substrate, as shown in Fig. 1a. The structure is suspended in the air. For our FEM simulation we used measured values for Si and SiO2 refractive index taken from literature. The electric field distribution and its circular power flow, both at a wavelength of 630 nm, are shown in Fig. 1b. We gradually increase the imaginary part of the refractive index in the cruciform openings, starting with the lossless case, while maintaining the real part of refractive index equal to unity (air). The dispersive properties that depend on the value of the imaginary part are shown in Fig. 1c. The circular power flow that increases the optical path, the field localization and intrinsically low losses of the structure in the visible range all cause that adding even the smallest volumes of analyte with slightly increased optical absorption in comparison to the metasurface significantly reduces transmission through the structure, despite the exceptionally low structure thickness.
PB  - Belgrade : Vinča Institute of Nuclear Sciences – National Institute of the Republic of  Serbia, University of Belgrade
C3  - Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia
T1  - All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index
SP  - 127
EP  - 127
UR  - https://hdl.handle.net/21.15107/rcub_cer_6759
ER  - 

@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Rašljić-Rafajilović, Milena and Vasiljević-Radović, Dana",
year = "2023",
abstract = "Metasurfaces are one of the most attractive research fields in recent years, in no small measure due to their use as refractometric sensors with unparalleled sensitivity, enabling sensing of even single atoms or molecules. This sensitivity is rooted in their ability to localize electromagnetic fields in volumes orders of magnitude below the diffraction limit. This is achieved by special geometry and refractive index contrast of metasurface nanocomposites. A plethora of both conductive (metals, TCO, graphene, MXenes...) and dielectric (oxides, semiconductors) materials can be used, all of them bringing different functionalities which further enhance the freedom of design when tailoring metasurfaces. However, the fundamental sensing mechanism is practically identical across all platforms and is based on the spectral shift of transmission or reflection due to a difference in the values of the real parts of refractive index between analyte and the environment. 
Here we propose an alternative approach, the use of exceptional capabilities of optical metasurfaces in transforming optical space to sense analytes with identical real parts of refractive index but different imaginary parts (losses). This is becoming increasingly important with the need to detect airborne viruses. We propose a metasurface formed by cruciform openings in a thin silicon layer on a SiO2 substrate, as shown in Fig. 1a. The structure is suspended in the air. For our FEM simulation we used measured values for Si and SiO2 refractive index taken from literature. The electric field distribution and its circular power flow, both at a wavelength of 630 nm, are shown in Fig. 1b. We gradually increase the imaginary part of the refractive index in the cruciform openings, starting with the lossless case, while maintaining the real part of refractive index equal to unity (air). The dispersive properties that depend on the value of the imaginary part are shown in Fig. 1c. The circular power flow that increases the optical path, the field localization and intrinsically low losses of the structure in the visible range all cause that adding even the smallest volumes of analyte with slightly increased optical absorption in comparison to the metasurface significantly reduces transmission through the structure, despite the exceptionally low structure thickness.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences – National Institute of the Republic of  Serbia, University of Belgrade",
journal = "Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia",
title = "All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index",
pages = "127-127",
url = "https://hdl.handle.net/21.15107/rcub_cer_6759"
}

Obradov, M., Jakšić, Z., Mladenović, I., Rašljić-Rafajilović, M.,& Vasiljević-Radović, D.. (2023). All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index. in Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia
Belgrade : Vinča Institute of Nuclear Sciences – National Institute of the Republic of  Serbia, University of Belgrade., 127-127.
https://hdl.handle.net/21.15107/rcub_cer_6759

Obradov M, Jakšić Z, Mladenović I, Rašljić-Rafajilović M, Vasiljević-Radović D. All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index. in Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia. 2023;:127-127.
https://hdl.handle.net/21.15107/rcub_cer_6759 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Rašljić-Rafajilović, Milena, Vasiljević-Radović, Dana, "All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index" in Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia (2023):127-127,
https://hdl.handle.net/21.15107/rcub_cer_6759 .

TY  - CONF
AU  - Pešić, Ivan
AU  - Rašljić-Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
AU  - Ostojić, Sanja
AU  - Petrović, Miloš
AU  - Radojević, Vesna
AU  - Pergal, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6690
AB  - The present study reports on the preparation of nanocomposites consisting of polyurethane (PU) as the matrix and Ti 3 C 2 T x MXene as the nanofiller, utilizing an in-situ polymerization method. The synthesis parameters of polyurethane remained constant, while the method of adding and preparing MXene was varied. The MXene content was maintained at 1 wt.% for all prepared nanocomposites, and the soft segment content was held constant as well. For the characterization of our materials, FTIR, SEM, TGA and tensile tests were employed. Also, the properties of the prepared nanocomposites were compared to pure PU. FTIR spectra confirmed the formation of urethane bonds. SEM images demonstrated the dispersion state of MXene in the polymer matrix. TGA revealed higher thermal stability of the prepared nanocomposites compared to pure PU. Moreover, the Young’s modulus and tensile strength increased for all prepared nanocomposites.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 10th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 05-08 June 2023, East Sarajevo, Bosnia and Herzegovina
T1  - Optimization of reaction parameters for preparation  of MXene-based polymer nanocomposites
SP  - 23488337
DO  - 10.1109/IcETRAN59631.2023.10192211
ER  - 

@conference{
author = "Pešić, Ivan and Rašljić-Rafajilović, Milena and Vasiljević-Radović, Dana and Ostojić, Sanja and Petrović, Miloš and Radojević, Vesna and Pergal, Marija",
year = "2023",
abstract = "The present study reports on the preparation of nanocomposites consisting of polyurethane (PU) as the matrix and Ti 3 C 2 T x MXene as the nanofiller, utilizing an in-situ polymerization method. The synthesis parameters of polyurethane remained constant, while the method of adding and preparing MXene was varied. The MXene content was maintained at 1 wt.% for all prepared nanocomposites, and the soft segment content was held constant as well. For the characterization of our materials, FTIR, SEM, TGA and tensile tests were employed. Also, the properties of the prepared nanocomposites were compared to pure PU. FTIR spectra confirmed the formation of urethane bonds. SEM images demonstrated the dispersion state of MXene in the polymer matrix. TGA revealed higher thermal stability of the prepared nanocomposites compared to pure PU. Moreover, the Young’s modulus and tensile strength increased for all prepared nanocomposites.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "10th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 05-08 June 2023, East Sarajevo, Bosnia and Herzegovina",
title = "Optimization of reaction parameters for preparation  of MXene-based polymer nanocomposites",
pages = "23488337",
doi = "10.1109/IcETRAN59631.2023.10192211"
}

Pešić, I., Rašljić-Rafajilović, M., Vasiljević-Radović, D., Ostojić, S., Petrović, M., Radojević, V.,& Pergal, M.. (2023). Optimization of reaction parameters for preparation  of MXene-based polymer nanocomposites. in 10th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 05-08 June 2023, East Sarajevo, Bosnia and Herzegovina
Institute of Electrical and Electronics Engineers (IEEE)., 23488337.
https://doi.org/10.1109/IcETRAN59631.2023.10192211

Pešić I, Rašljić-Rafajilović M, Vasiljević-Radović D, Ostojić S, Petrović M, Radojević V, Pergal M. Optimization of reaction parameters for preparation  of MXene-based polymer nanocomposites. in 10th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 05-08 June 2023, East Sarajevo, Bosnia and Herzegovina. 2023;:23488337.
doi:10.1109/IcETRAN59631.2023.10192211 .

Pešić, Ivan, Rašljić-Rafajilović, Milena, Vasiljević-Radović, Dana, Ostojić, Sanja, Petrović, Miloš, Radojević, Vesna, Pergal, Marija, "Optimization of reaction parameters for preparation  of MXene-based polymer nanocomposites" in 10th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN), 05-08 June 2023, East Sarajevo, Bosnia and Herzegovina (2023):23488337,
https://doi.org/10.1109/IcETRAN59631.2023.10192211 . .

TY  - CONF
AU  - Pergal, Marija
AU  - Rašljić Rafajilović, Milena
AU  - Vićentić, Teodora
AU  - Pašti, Igor
AU  - Bajuk-Bogdanović, Danica
AU  - Radulović, Katarina
AU  - Spasenović, Marko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7114
AB  - Laser-induced graphene (LIG) has emerged as one of the most promising materials for
flexible functional devices. One-step fabrication of LIG offers advantages such as low cost,
patterning of desired geometries, and high sensitivity. However, previous attempts to obtain
LIG on elastomeric substrates have been unsuccessful, limiting its potential for use in
stretchable electronics. In this study, we propose using a substrate composed of
polydimethylsiloxane (PDMS) and poly(ethylene oxide) (PEO) with a low molecular weight
as a platform for manufacturing LIG. A series of PDMS/PEO materials with varying
concentrations of PEO (1, 5, 10, 20, 30, 40 and 50 wt.%) were prepared using a cast-based
approach, starting from divinyl-terminated-PDMS and poly(methyl-hydrogensiloxane). The
prepared PDMS/PEO/graphene composites were characterized using Raman spectroscopy,
Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM)
analysis. FTIR analysis confirmed the structure of the prepared PDMS/PEO and
PDMS/PEO/graphene materials. The results demonstrated that the prepared PDMS/PEO
composites exhibited a higher degree of graphenization compared to pure PDMS networks.
SEM analysis revealed the formation of a porous graphene structure. Based on these findings,
the PDMS/PEO/graphene composites show promise for further investigation as electronic
device applications.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Laser-induced graphene on PEO/PDMS composites
SP  - 59
EP  - 59
UR  - https://hdl.handle.net/21.15107/rcub_cer_7114
ER  - 

@conference{
author = "Pergal, Marija and Rašljić Rafajilović, Milena and Vićentić, Teodora and Pašti, Igor and Bajuk-Bogdanović, Danica and Radulović, Katarina and Spasenović, Marko",
year = "2023",
abstract = "Laser-induced graphene (LIG) has emerged as one of the most promising materials for
flexible functional devices. One-step fabrication of LIG offers advantages such as low cost,
patterning of desired geometries, and high sensitivity. However, previous attempts to obtain
LIG on elastomeric substrates have been unsuccessful, limiting its potential for use in
stretchable electronics. In this study, we propose using a substrate composed of
polydimethylsiloxane (PDMS) and poly(ethylene oxide) (PEO) with a low molecular weight
as a platform for manufacturing LIG. A series of PDMS/PEO materials with varying
concentrations of PEO (1, 5, 10, 20, 30, 40 and 50 wt.%) were prepared using a cast-based
approach, starting from divinyl-terminated-PDMS and poly(methyl-hydrogensiloxane). The
prepared PDMS/PEO/graphene composites were characterized using Raman spectroscopy,
Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM)
analysis. FTIR analysis confirmed the structure of the prepared PDMS/PEO and
PDMS/PEO/graphene materials. The results demonstrated that the prepared PDMS/PEO
composites exhibited a higher degree of graphenization compared to pure PDMS networks.
SEM analysis revealed the formation of a porous graphene structure. Based on these findings,
the PDMS/PEO/graphene composites show promise for further investigation as electronic
device applications.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Laser-induced graphene on PEO/PDMS composites",
pages = "59-59",
url = "https://hdl.handle.net/21.15107/rcub_cer_7114"
}

Pergal, M., Rašljić Rafajilović, M., Vićentić, T., Pašti, I., Bajuk-Bogdanović, D., Radulović, K.,& Spasenović, M.. (2023). Laser-induced graphene on PEO/PDMS composites. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Belgrade : Serbian Ceramic Society., 59-59.
https://hdl.handle.net/21.15107/rcub_cer_7114

Pergal M, Rašljić Rafajilović M, Vićentić T, Pašti I, Bajuk-Bogdanović D, Radulović K, Spasenović M. Laser-induced graphene on PEO/PDMS composites. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:59-59.
https://hdl.handle.net/21.15107/rcub_cer_7114 .

Pergal, Marija, Rašljić Rafajilović, Milena, Vićentić, Teodora, Pašti, Igor, Bajuk-Bogdanović, Danica, Radulović, Katarina, Spasenović, Marko, "Laser-induced graphene on PEO/PDMS composites" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):59-59,
https://hdl.handle.net/21.15107/rcub_cer_7114 .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Vićentić, Teodora
AU  - Spasenović, Marko
AU  - Bajuk-Bogdanović, Danica
AU  - Pašti, Igor
AU  - Radulović, Katarina
AU  - Pergal, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7115
AB  - The objective of this study was to develop optimal laser parameters (resolution, power, and velocity) for the formation of graphene on poly(dimethylsiloxane) (PDMS)-based materials using laser-induced graphene (LIG). A series of novel PDMS/poly(ethylene glycol) (PEG) materials with varying concentrations of PEG (30, 40, and 50 wt.%) was prepared through a blending approach. For comparison, pure PDMS was prepared using a casting method. To the best of our knowledge, the synthesis of PDMS/PEG materials and the direct laser graphenization (LIG) of PDMS/PEG materials have not been reported in the literature. Once the optimal laser parameters were established, the prepared PDMS/PEG/graphene composites were characterized using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and scanning electron microscopy (SEM). The results demonstrated that the addition of PEG led to an enhanced degree of graphenization compared to the pure PDMS sample, which did not induce graphene formation. Among the materials tested, the PDMS/PEG/graphene composite with 30 wt.% PEG in the PDMS matrix exhibited the optimal degree of graphenization. SEM analysis of the LIG on PDMS/PEG material revealed a porous network structure. With their improved properties, the developed PDMS/PEG/graphene composites hold promise as materials suitable for the production of flexible electronic devices.
PB  - Академија наука и умјетности Републике Српске / Academy of Sciences and Arts of the Republic of Srpska
C3  - XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka
T1  - Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials
SP  - 40
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_cer_7115
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Vićentić, Teodora and Spasenović, Marko and Bajuk-Bogdanović, Danica and Pašti, Igor and Radulović, Katarina and Pergal, Marija",
year = "2023",
abstract = "The objective of this study was to develop optimal laser parameters (resolution, power, and velocity) for the formation of graphene on poly(dimethylsiloxane) (PDMS)-based materials using laser-induced graphene (LIG). A series of novel PDMS/poly(ethylene glycol) (PEG) materials with varying concentrations of PEG (30, 40, and 50 wt.%) was prepared through a blending approach. For comparison, pure PDMS was prepared using a casting method. To the best of our knowledge, the synthesis of PDMS/PEG materials and the direct laser graphenization (LIG) of PDMS/PEG materials have not been reported in the literature. Once the optimal laser parameters were established, the prepared PDMS/PEG/graphene composites were characterized using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and scanning electron microscopy (SEM). The results demonstrated that the addition of PEG led to an enhanced degree of graphenization compared to the pure PDMS sample, which did not induce graphene formation. Among the materials tested, the PDMS/PEG/graphene composite with 30 wt.% PEG in the PDMS matrix exhibited the optimal degree of graphenization. SEM analysis of the LIG on PDMS/PEG material revealed a porous network structure. With their improved properties, the developed PDMS/PEG/graphene composites hold promise as materials suitable for the production of flexible electronic devices.",
publisher = "Академија наука и умјетности Републике Српске / Academy of Sciences and Arts of the Republic of Srpska",
journal = "XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka",
title = "Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials",
pages = "40-40",
url = "https://hdl.handle.net/21.15107/rcub_cer_7115"
}

Rašljić Rafajilović, M., Vićentić, T., Spasenović, M., Bajuk-Bogdanović, D., Pašti, I., Radulović, K.,& Pergal, M.. (2023). Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials. in XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka
Академија наука и умјетности Републике Српске / Academy of Sciences and Arts of the Republic of Srpska., 40-40.
https://hdl.handle.net/21.15107/rcub_cer_7115

Rašljić Rafajilović M, Vićentić T, Spasenović M, Bajuk-Bogdanović D, Pašti I, Radulović K, Pergal M. Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials. in XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka. 2023;:40-40.
https://hdl.handle.net/21.15107/rcub_cer_7115 .

Rašljić Rafajilović, Milena, Vićentić, Teodora, Spasenović, Marko, Bajuk-Bogdanović, Danica, Pašti, Igor, Radulović, Katarina, Pergal, Marija, "Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials" in XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka (2023):40-40,
https://hdl.handle.net/21.15107/rcub_cer_7115 .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Bošković, Marko
AU  - Sarajlić, Milija
AU  - Mladenović, Ivana
AU  - Pešić, Ivan
AU  - Vasiljević-Radović, Dana
AU  - Pergal, Marija
PY  - 2023
UR  - https://www.etran.rs/2023/E_PROCEEDINGS_ICETRAN_2023/IcETRAN23_RADOVI/MOI1.1.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6254
AB  - Interdigitated electrodes with integrated heaters
fabricated on a Si platform were investigated in this study. The
electrodes and heaters were made of gold, using standard
photolithography processes. The primary objective was to
analyze the maximum temperature achievable on the
microheater and characterize its temperature distribution. The
integrated heater achieved a maximum temperature of 420 °C
with an applied voltage of 16 V. The temperature distribution
was uniform across the entire surface of the heater, which was
located on the underside of the chip beneath the interdigitated
electrodes. At higher temperatures, the silver paste, utilized as
a bonding agent between the copper wires and heater,
underwent melting.
PB  - Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering
C3  - Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H
T1  - Photolithography-based Fabrication of Interdigitated Electrodes with Integrated Gold Microheater: Temperature Distribution Study
SP  - MOI1.1-1
EP  - MOI1.1-4
UR  - https://hdl.handle.net/21.15107/rcub_cer_6254
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Bošković, Marko and Sarajlić, Milija and Mladenović, Ivana and Pešić, Ivan and Vasiljević-Radović, Dana and Pergal, Marija",
year = "2023",
abstract = "Interdigitated electrodes with integrated heaters
fabricated on a Si platform were investigated in this study. The
electrodes and heaters were made of gold, using standard
photolithography processes. The primary objective was to
analyze the maximum temperature achievable on the
microheater and characterize its temperature distribution. The
integrated heater achieved a maximum temperature of 420 °C
with an applied voltage of 16 V. The temperature distribution
was uniform across the entire surface of the heater, which was
located on the underside of the chip beneath the interdigitated
electrodes. At higher temperatures, the silver paste, utilized as
a bonding agent between the copper wires and heater,
underwent melting.",
publisher = "Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering",
journal = "Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H",
title = "Photolithography-based Fabrication of Interdigitated Electrodes with Integrated Gold Microheater: Temperature Distribution Study",
pages = "MOI1.1-1-MOI1.1-4",
url = "https://hdl.handle.net/21.15107/rcub_cer_6254"
}

Rašljić Rafajilović, M., Bošković, M., Sarajlić, M., Mladenović, I., Pešić, I., Vasiljević-Radović, D.,& Pergal, M.. (2023). Photolithography-based Fabrication of Interdigitated Electrodes with Integrated Gold Microheater: Temperature Distribution Study. in Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H
Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering., MOI1.1-1-MOI1.1-4.
https://hdl.handle.net/21.15107/rcub_cer_6254

Rašljić Rafajilović M, Bošković M, Sarajlić M, Mladenović I, Pešić I, Vasiljević-Radović D, Pergal M. Photolithography-based Fabrication of Interdigitated Electrodes with Integrated Gold Microheater: Temperature Distribution Study. in Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H. 2023;:MOI1.1-1-MOI1.1-4.
https://hdl.handle.net/21.15107/rcub_cer_6254 .

Rašljić Rafajilović, Milena, Bošković, Marko, Sarajlić, Milija, Mladenović, Ivana, Pešić, Ivan, Vasiljević-Radović, Dana, Pergal, Marija, "Photolithography-based Fabrication of Interdigitated Electrodes with Integrated Gold Microheater: Temperature Distribution Study" in Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H (2023):MOI1.1-1-MOI1.1-4,
https://hdl.handle.net/21.15107/rcub_cer_6254 .

TY  - CHAP
AU  - Pergal, Marija
AU  - Jakšić, Olga
AU  - Rašljić Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6870
AB  - Polymer-based microelectromechanical systems (MEMS) and devices
are a rapidly expanding field with a wide range of applications, from
microfluidics including lab-on-a-chip systems, to new sensors and
actuators, to flexible and stretchable devices. The use of microfluidic
devices and, more broadly, MEMS structures based on polymer
materials, has increased tremendously due to their great potential in
biomedical, point-of-care, and general healthcare applications.
Currently, polymer materials (elastomers, thermoplastics, and
thermosetting polymers) are commonly used in the fabrication of
microfluidic devices and MEMS structures for their low cost, versatile
fabrication methods, biocompatibility, repeatability, and a wide range of
(customizable) material characteristics with improved functionality.
Polymers have become one of the favored functional materials for microfluidic devices, as they possess excellent mechanical and optical
properties. Furthermore, a variety of polymeric materials with unique
physical and chemical characteristics are also available. Compared to
silicon and glass, polymers are inexpensive, feature a wide variety of
material properties for meeting various application requirements of
disposable biomedical microfluidic devices and MEMS structures, and
have a wide variety of practical applications. In this chapter, different
types of polymer materials used in microfluidics and MEMS devices, the
properties of polymer materials, and the methods for fabricating
polymer-based microfluidic systems and MEMS structures are
described. This chapter highlights the most recent developments, future
trends, and challenges in the devices’ preparation methods, and
applications of polymer-based microfluidic and MEMS devices
generally. Special care has been dedicated to biosensing and applications
where polymer-based microfluidic and MEMS devices allow for new
functionalities: applications based on the use of flexible and stretchable
electronic devices, applications employing novel functional materials
(such as biomimetic scaffold tissues), and advanced sensing mechanisms
(as in plasmonic biosensing). Moreover, this chapter focuses on the
synthesis of polymeric and inorganic nanoparticles in microreactors. The
advantages and limitations of using polymer materials in MEMS
technology are also discussed.
PB  - Nova Science
T2  - Advances in Materials Science Research
T1  - Polymer-Based Microelectromechanical Systems (MEMS) and Microfluidic Devices: Engineering and Applications
VL  - 63
SP  - 1
EP  - 117
UR  - https://hdl.handle.net/21.15107/rcub_cer_6870
ER  - 

@inbook{
author = "Pergal, Marija and Jakšić, Olga and Rašljić Rafajilović, Milena and Vasiljević-Radović, Dana",
year = "2023",
abstract = "Polymer-based microelectromechanical systems (MEMS) and devices
are a rapidly expanding field with a wide range of applications, from
microfluidics including lab-on-a-chip systems, to new sensors and
actuators, to flexible and stretchable devices. The use of microfluidic
devices and, more broadly, MEMS structures based on polymer
materials, has increased tremendously due to their great potential in
biomedical, point-of-care, and general healthcare applications.
Currently, polymer materials (elastomers, thermoplastics, and
thermosetting polymers) are commonly used in the fabrication of
microfluidic devices and MEMS structures for their low cost, versatile
fabrication methods, biocompatibility, repeatability, and a wide range of
(customizable) material characteristics with improved functionality.
Polymers have become one of the favored functional materials for microfluidic devices, as they possess excellent mechanical and optical
properties. Furthermore, a variety of polymeric materials with unique
physical and chemical characteristics are also available. Compared to
silicon and glass, polymers are inexpensive, feature a wide variety of
material properties for meeting various application requirements of
disposable biomedical microfluidic devices and MEMS structures, and
have a wide variety of practical applications. In this chapter, different
types of polymer materials used in microfluidics and MEMS devices, the
properties of polymer materials, and the methods for fabricating
polymer-based microfluidic systems and MEMS structures are
described. This chapter highlights the most recent developments, future
trends, and challenges in the devices’ preparation methods, and
applications of polymer-based microfluidic and MEMS devices
generally. Special care has been dedicated to biosensing and applications
where polymer-based microfluidic and MEMS devices allow for new
functionalities: applications based on the use of flexible and stretchable
electronic devices, applications employing novel functional materials
(such as biomimetic scaffold tissues), and advanced sensing mechanisms
(as in plasmonic biosensing). Moreover, this chapter focuses on the
synthesis of polymeric and inorganic nanoparticles in microreactors. The
advantages and limitations of using polymer materials in MEMS
technology are also discussed.",
publisher = "Nova Science",
journal = "Advances in Materials Science Research",
booktitle = "Polymer-Based Microelectromechanical Systems (MEMS) and Microfluidic Devices: Engineering and Applications",
volume = "63",
pages = "1-117",
url = "https://hdl.handle.net/21.15107/rcub_cer_6870"
}

Pergal, M., Jakšić, O., Rašljić Rafajilović, M.,& Vasiljević-Radović, D.. (2023). Polymer-Based Microelectromechanical Systems (MEMS) and Microfluidic Devices: Engineering and Applications. in Advances in Materials Science Research
Nova Science., 63, 1-117.
https://hdl.handle.net/21.15107/rcub_cer_6870

Pergal M, Jakšić O, Rašljić Rafajilović M, Vasiljević-Radović D. Polymer-Based Microelectromechanical Systems (MEMS) and Microfluidic Devices: Engineering and Applications. in Advances in Materials Science Research. 2023;63:1-117.
https://hdl.handle.net/21.15107/rcub_cer_6870 .

Pergal, Marija, Jakšić, Olga, Rašljić Rafajilović, Milena, Vasiljević-Radović, Dana, "Polymer-Based Microelectromechanical Systems (MEMS) and Microfluidic Devices: Engineering and Applications" in Advances in Materials Science Research, 63 (2023):1-117,
https://hdl.handle.net/21.15107/rcub_cer_6870 .

TY  - CONF
AU  - Lazić, Žarko
AU  - Smiljanić, Milče
AU  - Tanasković, Dragan
AU  - Rašljić Rafajilović, Milena
AU  - Cvetanović, Katarina
AU  - Milinković, Evgenija
AU  - Bošković, Marko V.
AU  - Andrić, Stevan
AU  - Poljak, Predrag
AU  - Frantlović, Miloš
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7419
AB  - The existing instruments for aerodynamic pressure measurements are usually built around
an array of discrete pressure sensors, placed in the same housing together with a few discrete
temperature sensors. However, this approach is limiting, especially regarding miniaturization, sensor matching, and thermal coupling. In this work, we intend to overcome these limitations by proposing a novel MEMS multisensor chip, which has a monolithically integrated matrix of four piezoresistive MEMS pressure-sensing elements and two resistive temperature-sensing elements. After finishing the preliminary chip design, we performed computer simulations in order to assess its mechanical behavior when measured pressure is applied. Subsequently, the final chip design was completed, and the first batch was fabricated. The used technological processes included photolithography, thermal oxidation, diffusion, sputtering, micromachining (wet chemical etching), anodic bonding, and wafer dicing.
PB  - MDPI
C3  - Engineering proceedings
T1  - Development of a MEMS Multisensor Chip for Aerodynamic Pressure Measurements
VL  - 58
IS  - 1
SP  - 52
DO  - 10.3390/ecsa-10-16071
ER  - 

@conference{
author = "Lazić, Žarko and Smiljanić, Milče and Tanasković, Dragan and Rašljić Rafajilović, Milena and Cvetanović, Katarina and Milinković, Evgenija and Bošković, Marko V. and Andrić, Stevan and Poljak, Predrag and Frantlović, Miloš",
year = "2023",
abstract = "The existing instruments for aerodynamic pressure measurements are usually built around
an array of discrete pressure sensors, placed in the same housing together with a few discrete
temperature sensors. However, this approach is limiting, especially regarding miniaturization, sensor matching, and thermal coupling. In this work, we intend to overcome these limitations by proposing a novel MEMS multisensor chip, which has a monolithically integrated matrix of four piezoresistive MEMS pressure-sensing elements and two resistive temperature-sensing elements. After finishing the preliminary chip design, we performed computer simulations in order to assess its mechanical behavior when measured pressure is applied. Subsequently, the final chip design was completed, and the first batch was fabricated. The used technological processes included photolithography, thermal oxidation, diffusion, sputtering, micromachining (wet chemical etching), anodic bonding, and wafer dicing.",
publisher = "MDPI",
journal = "Engineering proceedings",
title = "Development of a MEMS Multisensor Chip for Aerodynamic Pressure Measurements",
volume = "58",
number = "1",
pages = "52",
doi = "10.3390/ecsa-10-16071"
}

Lazić, Ž., Smiljanić, M., Tanasković, D., Rašljić Rafajilović, M., Cvetanović, K., Milinković, E., Bošković, M. V., Andrić, S., Poljak, P.,& Frantlović, M.. (2023). Development of a MEMS Multisensor Chip for Aerodynamic Pressure Measurements. in Engineering proceedings
MDPI., 58(1), 52.
https://doi.org/10.3390/ecsa-10-16071

Lazić Ž, Smiljanić M, Tanasković D, Rašljić Rafajilović M, Cvetanović K, Milinković E, Bošković MV, Andrić S, Poljak P, Frantlović M. Development of a MEMS Multisensor Chip for Aerodynamic Pressure Measurements. in Engineering proceedings. 2023;58(1):52.
doi:10.3390/ecsa-10-16071 .

Lazić, Žarko, Smiljanić, Milče, Tanasković, Dragan, Rašljić Rafajilović, Milena, Cvetanović, Katarina, Milinković, Evgenija, Bošković, Marko V., Andrić, Stevan, Poljak, Predrag, Frantlović, Miloš, "Development of a MEMS Multisensor Chip for Aerodynamic Pressure Measurements" in Engineering proceedings, 58, no. 1 (2023):52,
https://doi.org/10.3390/ecsa-10-16071 . .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
AU  - Špirkova, Milena
AU  - Gojgić-Cvijović, Gordana
AU  - Pergal, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5751
AB  - Polyurethanes (PUs) are widely used polymers, with specific production able to be aimed at their
notable industrial and biomedical applications by carefully changing their ingredients, their ratios
and their preparation procedures. The popularity of PU nanocomposites is caused mainly by the
simplicity of tuning their functional properties. The choice of nanofillers, for example, clay,
graphene oxide, carbon nanotubes, silicon dioxide, nanosilver or nanoferrite is miscellaneous. In
this work, PU/clay nanocomposites were prepared by in situ polymerization in the presence of
organically modified clay (Cloisite 30B) with clay loading of 0.5 wt.%. We used hyperbranched
polyester and 4,4'-methylenediphenyldiisocyanate as hard segment components, while
poly(dimethylsiloxane) macrodiol as soft segment. The influence of the soft segment content on the properties of nanocomposites was investigated by swelling behavior, crosslinking density, degree of phase separation, water absorption and contact angle measurements as well as surface free energy determination. FTIR results showed the higher degree of phase separation in nanocomposites as soft segment content decreased. Moreover, the results showed that equilibrium swelling degree of PU nanocomposites decreases, while crosslinking density increases with decreasing soft segment content. Hydrophobicity of the PU nanocomposites increases with increasing soft segment content, due to the hydrophobic character of PDMS. Namely, the surface free energy of nanocomposites films decreases in the range of 39.8 to 28.0 mJ/m2 with increasing soft segment content, confirming good surface hydrophobicity. Therefore, PU nanocomposites could be considered as promising materials suitable for coating applications.
PB  - Banja Luka : University in Banjaluka, Faculty of Technology
C3  - Book of Abstracts - XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
T1  - Surface Characteristics of polyurethane/organoclay nanocomposites
SP  - 195
EP  - 195
UR  - https://hdl.handle.net/21.15107/rcub_cer_5751
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Vasiljević-Radović, Dana and Špirkova, Milena and Gojgić-Cvijović, Gordana and Pergal, Marija",
year = "2022",
abstract = "Polyurethanes (PUs) are widely used polymers, with specific production able to be aimed at their
notable industrial and biomedical applications by carefully changing their ingredients, their ratios
and their preparation procedures. The popularity of PU nanocomposites is caused mainly by the
simplicity of tuning their functional properties. The choice of nanofillers, for example, clay,
graphene oxide, carbon nanotubes, silicon dioxide, nanosilver or nanoferrite is miscellaneous. In
this work, PU/clay nanocomposites were prepared by in situ polymerization in the presence of
organically modified clay (Cloisite 30B) with clay loading of 0.5 wt.%. We used hyperbranched
polyester and 4,4'-methylenediphenyldiisocyanate as hard segment components, while
poly(dimethylsiloxane) macrodiol as soft segment. The influence of the soft segment content on the properties of nanocomposites was investigated by swelling behavior, crosslinking density, degree of phase separation, water absorption and contact angle measurements as well as surface free energy determination. FTIR results showed the higher degree of phase separation in nanocomposites as soft segment content decreased. Moreover, the results showed that equilibrium swelling degree of PU nanocomposites decreases, while crosslinking density increases with decreasing soft segment content. Hydrophobicity of the PU nanocomposites increases with increasing soft segment content, due to the hydrophobic character of PDMS. Namely, the surface free energy of nanocomposites films decreases in the range of 39.8 to 28.0 mJ/m2 with increasing soft segment content, confirming good surface hydrophobicity. Therefore, PU nanocomposites could be considered as promising materials suitable for coating applications.",
publisher = "Banja Luka : University in Banjaluka, Faculty of Technology",
journal = "Book of Abstracts - XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka",
title = "Surface Characteristics of polyurethane/organoclay nanocomposites",
pages = "195-195",
url = "https://hdl.handle.net/21.15107/rcub_cer_5751"
}

Rašljić Rafajilović, M., Vasiljević-Radović, D., Špirkova, M., Gojgić-Cvijović, G.,& Pergal, M.. (2022). Surface Characteristics of polyurethane/organoclay nanocomposites. in Book of Abstracts - XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
Banja Luka : University in Banjaluka, Faculty of Technology., 195-195.
https://hdl.handle.net/21.15107/rcub_cer_5751

Rašljić Rafajilović M, Vasiljević-Radović D, Špirkova M, Gojgić-Cvijović G, Pergal M. Surface Characteristics of polyurethane/organoclay nanocomposites. in Book of Abstracts - XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka. 2022;:195-195.
https://hdl.handle.net/21.15107/rcub_cer_5751 .

Rašljić Rafajilović, Milena, Vasiljević-Radović, Dana, Špirkova, Milena, Gojgić-Cvijović, Gordana, Pergal, Marija, "Surface Characteristics of polyurethane/organoclay nanocomposites" in Book of Abstracts - XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka (2022):195-195,
https://hdl.handle.net/21.15107/rcub_cer_5751 .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Pergal, Marija
AU  - Spasenović, Marko
AU  - Vićentić, Teodora
AU  - Bajuk-Bogdanović, Danica
AU  - Vasiljević-Radović, Dana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5750
AB  - Laser induced graphenization (LIG) of polymer materials has recognized as the most promising method for fabrication of flexible electronic devices. Poly(dimethylsiloxane) (PDMS) is suitable elastomeric materials for flexible electronics devices fabrication due to outstanding mechanical and optical properties. Namely, the low carbon content and the lacking aromatic structures in PDMS material limit the graphenization process resulting in limited conduction properties. The aim of this study was the graphenization of PDMS and PDMS-based materials by CO2 laser radiation. We prepared pure PDMS elastomer, PDMS/ethylene glycol and PDMS/Triton composite materials by using 20 wt. % of ethylene glycol or Triton in PDMS matrix. Indeed, up to now the evidence of graphenization of these PDMS-based materials has never been observed. PDMS elastomer was prepared by hydrosilylation reaction, while composite materials by blending method. The prepared PDMS-based materials were characterized by Fourier-transform infrared spectroscopy (FTIR), atomic force microscopy (AFM) and Raman spectroscopy. The obtained results showed that surfaces of pure PDMS elastomer and PDMS/ethylene glycol composite cannot be graphenized by direct laser writing. However, by adding Triton as aromatic and carbon sources into the PDMS matrix it is possible to improve the graphenization of PDMS based materials and this material is good candidate for fabrication of flexible electrodes.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia
T1  - Preparation of poly(dimethylsiloxane)-based materials for laser-induced graphenization
SP  - 87
EP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_cer_5750
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Pergal, Marija and Spasenović, Marko and Vićentić, Teodora and Bajuk-Bogdanović, Danica and Vasiljević-Radović, Dana",
year = "2022",
abstract = "Laser induced graphenization (LIG) of polymer materials has recognized as the most promising method for fabrication of flexible electronic devices. Poly(dimethylsiloxane) (PDMS) is suitable elastomeric materials for flexible electronics devices fabrication due to outstanding mechanical and optical properties. Namely, the low carbon content and the lacking aromatic structures in PDMS material limit the graphenization process resulting in limited conduction properties. The aim of this study was the graphenization of PDMS and PDMS-based materials by CO2 laser radiation. We prepared pure PDMS elastomer, PDMS/ethylene glycol and PDMS/Triton composite materials by using 20 wt. % of ethylene glycol or Triton in PDMS matrix. Indeed, up to now the evidence of graphenization of these PDMS-based materials has never been observed. PDMS elastomer was prepared by hydrosilylation reaction, while composite materials by blending method. The prepared PDMS-based materials were characterized by Fourier-transform infrared spectroscopy (FTIR), atomic force microscopy (AFM) and Raman spectroscopy. The obtained results showed that surfaces of pure PDMS elastomer and PDMS/ethylene glycol composite cannot be graphenized by direct laser writing. However, by adding Triton as aromatic and carbon sources into the PDMS matrix it is possible to improve the graphenization of PDMS based materials and this material is good candidate for fabrication of flexible electrodes.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia",
title = "Preparation of poly(dimethylsiloxane)-based materials for laser-induced graphenization",
pages = "87-87",
url = "https://hdl.handle.net/21.15107/rcub_cer_5750"
}

Rašljić Rafajilović, M., Pergal, M., Spasenović, M., Vićentić, T., Bajuk-Bogdanović, D.,& Vasiljević-Radović, D.. (2022). Preparation of poly(dimethylsiloxane)-based materials for laser-induced graphenization. in Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia
Belgrade : Serbian Ceramic Society., 87-87.
https://hdl.handle.net/21.15107/rcub_cer_5750

Rašljić Rafajilović M, Pergal M, Spasenović M, Vićentić T, Bajuk-Bogdanović D, Vasiljević-Radović D. Preparation of poly(dimethylsiloxane)-based materials for laser-induced graphenization. in Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia. 2022;:87-87.
https://hdl.handle.net/21.15107/rcub_cer_5750 .

Rašljić Rafajilović, Milena, Pergal, Marija, Spasenović, Marko, Vićentić, Teodora, Bajuk-Bogdanović, Danica, Vasiljević-Radović, Dana, "Preparation of poly(dimethylsiloxane)-based materials for laser-induced graphenization" in Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia (2022):87-87,
https://hdl.handle.net/21.15107/rcub_cer_5750 .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
AU  - Vorkapić, Miloš
AU  - Pergal, Marija
AU  - Smiljanić, Milče M.
AU  - Živković, Ljiljana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5749
AB  - Microreactors are microfluidic devices with a network of channels where chemical reactions can take place. The diameter of those channels is less than 1 millimeter. Advances of such devices are reduction of the time required for the synthesis, better control of the reaction and the size of nanoparticles. There are different materials from which microreactors can be fabricated. The most common are silicon (Si), polymers, glass, ceramics and metals. In this study, we used Si/Pyrex glass and poly(dimethylsiloxane) (PDMS) materials to fabricate two types of microreactors. Both types of microreactors had integrated heaters but different length and width of microchannels. Reaction was performed on the same temperature (80⁰C) and with the same reaction time in both microreactors. Synthesis of titanium (IV)-oxide nanoparticles was performed in these microreactors, in order to show how dimension of microchannels can affect the size of nanoparticles. Size distribution of nanoparticles was determined with dynamic light scattering (DLS). It was concluded that dimensions of microchannels had great influence on the size of the nanoparticles.
PB  - Belgrade : Serbian  Ceramic Society
C3  - Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia
T1  - Nanoparticle synthesis in microreactors
SP  - 86
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_cer_5749
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Vasiljević-Radović, Dana and Vorkapić, Miloš and Pergal, Marija and Smiljanić, Milče M. and Živković, Ljiljana",
year = "2022",
abstract = "Microreactors are microfluidic devices with a network of channels where chemical reactions can take place. The diameter of those channels is less than 1 millimeter. Advances of such devices are reduction of the time required for the synthesis, better control of the reaction and the size of nanoparticles. There are different materials from which microreactors can be fabricated. The most common are silicon (Si), polymers, glass, ceramics and metals. In this study, we used Si/Pyrex glass and poly(dimethylsiloxane) (PDMS) materials to fabricate two types of microreactors. Both types of microreactors had integrated heaters but different length and width of microchannels. Reaction was performed on the same temperature (80⁰C) and with the same reaction time in both microreactors. Synthesis of titanium (IV)-oxide nanoparticles was performed in these microreactors, in order to show how dimension of microchannels can affect the size of nanoparticles. Size distribution of nanoparticles was determined with dynamic light scattering (DLS). It was concluded that dimensions of microchannels had great influence on the size of the nanoparticles.",
publisher = "Belgrade : Serbian  Ceramic Society",
journal = "Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia",
title = "Nanoparticle synthesis in microreactors",
pages = "86-86",
url = "https://hdl.handle.net/21.15107/rcub_cer_5749"
}

Rašljić Rafajilović, M., Vasiljević-Radović, D., Vorkapić, M., Pergal, M., Smiljanić, M. M.,& Živković, L.. (2022). Nanoparticle synthesis in microreactors. in Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia
Belgrade : Serbian  Ceramic Society., 86-86.
https://hdl.handle.net/21.15107/rcub_cer_5749

Rašljić Rafajilović M, Vasiljević-Radović D, Vorkapić M, Pergal M, Smiljanić MM, Živković L. Nanoparticle synthesis in microreactors. in Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia. 2022;:86-86.
https://hdl.handle.net/21.15107/rcub_cer_5749 .

Rašljić Rafajilović, Milena, Vasiljević-Radović, Dana, Vorkapić, Miloš, Pergal, Marija, Smiljanić, Milče M., Živković, Ljiljana, "Nanoparticle synthesis in microreactors" in Program and the book of abstracts - Serbian Ceramic Society Conference - Advanced Ceramics and Application X - New Frontiers in Multifunctional Material Science and Processing, 26-27. September 2022, Belgrade, Serbia (2022):86-86,
https://hdl.handle.net/21.15107/rcub_cer_5749 .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
AU  - Vićentić, Teodora
AU  - Spasenović, Marko
AU  - Bošković, Marko
AU  - Pašti, Igor
AU  - Pergal, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5723
AB  - Laser-induced graphene (LIG) is one of the most promising graphene-based materials for the
fabrication of flexible electronic devices. However, despite huge efforts to develop LIG on new
substrates there is a lack of stretchable polymers convenient for laser graphenization.
Poly(dimethylsiloxane) is elastomer suitable for flexible electronic fabrication due to excellent
flexibility, optical transparency, hydrophobicity, UV-resistance and good thermal and oxidative
stability. Unfortunately, PDMS cannot be easily graphenized by direct laser writing because of the
low amount of carbon linked to the siloxane chains, mainly consisting of methyl groups. In this
study, a series of PDMS/Triton materials with different concentrations of Triton (1-30 wt.%) was
prepared by casted-based approach starting from divinyl-terminated-PDMS and poly(methylhydrogensiloxane).
Furthermore, direct laser graphenization of PDMS/Triton materials is proposed
for the first time. Different laser parameters and multiple writing steps have been examined in order
to induce a graphene-like structure on PDMS/Triton and to increase as much as possible its
conductivity. The prepared PDMS/Triton/graphene composites were characterized by Raman
spectroscopy, scanning electron microscopy (SEM) and sheet resistance measurements. The results
revealed that by adding Triton it is possible to enhance the graphenization degree. The obtained
PDMS/Triton/graphene composites are suitable candidates for flexible microsupercapacitor
fabrication.
PB  - Banja Luka : University in Banjaluka, Faculty of  Technology
C3  - Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
T1  - Characterization of poly(dimethylsiloxane)/laser-induced graphene composites
SP  - 196
UR  - https://hdl.handle.net/21.15107/rcub_cer_5723
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Vasiljević-Radović, Dana and Vićentić, Teodora and Spasenović, Marko and Bošković, Marko and Pašti, Igor and Pergal, Marija",
year = "2022",
abstract = "Laser-induced graphene (LIG) is one of the most promising graphene-based materials for the
fabrication of flexible electronic devices. However, despite huge efforts to develop LIG on new
substrates there is a lack of stretchable polymers convenient for laser graphenization.
Poly(dimethylsiloxane) is elastomer suitable for flexible electronic fabrication due to excellent
flexibility, optical transparency, hydrophobicity, UV-resistance and good thermal and oxidative
stability. Unfortunately, PDMS cannot be easily graphenized by direct laser writing because of the
low amount of carbon linked to the siloxane chains, mainly consisting of methyl groups. In this
study, a series of PDMS/Triton materials with different concentrations of Triton (1-30 wt.%) was
prepared by casted-based approach starting from divinyl-terminated-PDMS and poly(methylhydrogensiloxane).
Furthermore, direct laser graphenization of PDMS/Triton materials is proposed
for the first time. Different laser parameters and multiple writing steps have been examined in order
to induce a graphene-like structure on PDMS/Triton and to increase as much as possible its
conductivity. The prepared PDMS/Triton/graphene composites were characterized by Raman
spectroscopy, scanning electron microscopy (SEM) and sheet resistance measurements. The results
revealed that by adding Triton it is possible to enhance the graphenization degree. The obtained
PDMS/Triton/graphene composites are suitable candidates for flexible microsupercapacitor
fabrication.",
publisher = "Banja Luka : University in Banjaluka, Faculty of  Technology",
journal = "Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka",
title = "Characterization of poly(dimethylsiloxane)/laser-induced graphene composites",
pages = "196",
url = "https://hdl.handle.net/21.15107/rcub_cer_5723"
}

Rašljić Rafajilović, M., Vasiljević-Radović, D., Vićentić, T., Spasenović, M., Bošković, M., Pašti, I.,& Pergal, M.. (2022). Characterization of poly(dimethylsiloxane)/laser-induced graphene composites. in Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
Banja Luka : University in Banjaluka, Faculty of  Technology., 196.
https://hdl.handle.net/21.15107/rcub_cer_5723

Rašljić Rafajilović M, Vasiljević-Radović D, Vićentić T, Spasenović M, Bošković M, Pašti I, Pergal M. Characterization of poly(dimethylsiloxane)/laser-induced graphene composites. in Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka. 2022;:196.
https://hdl.handle.net/21.15107/rcub_cer_5723 .

Rašljić Rafajilović, Milena, Vasiljević-Radović, Dana, Vićentić, Teodora, Spasenović, Marko, Bošković, Marko, Pašti, Igor, Pergal, Marija, "Characterization of poly(dimethylsiloxane)/laser-induced graphene composites" in Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka (2022):196,
https://hdl.handle.net/21.15107/rcub_cer_5723 .

TY  - CONF
AU  - Mladenović, Ivana O.
AU  - Lamovec, Jelena S.
AU  - Obradov, Marko
AU  - Rašljić Rafajilović, Milena
AU  - Radojević, Vesna J.
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, Nebojša D.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5218
AB  - In this investigation, nickel coatings were electrodeposited on brass substrate. The effects of 
electrodeposition process parameters such as, current density and deposition time (coatings thickness), on surface morphology and composite hardness values were studied. The 
value of the measured composite hardness by Vickers microindentation technique of the selected “hard film on soft substrate” composite system type depends on the applied indentation loads. For this reason, the microindentation loads are also included in the analysis. According to the experiment plan obtained by Design-Expert software, nickel coating has been produced on the brass cathode using galvanostatic regime (DC) with magnetic stirring of the electrolyte. The nickel 
sulphamate electrolyte with saccharine additive was used for Ni electrodeposition. Then, response surface methodology (RSM) was used to establish an adequate mathematical model. Subsequently, a mathematical model was developed to weight the effects of each input parameters (coating thickness, current density and indentation load) on the output parameter (composite hardness) of electrodeposited nickel coatings on brass substrate. According to the obtained results, the coating thickness and indentation load greatly influenced resulting composite hardness. On the other hand, coating current density primarily influenced microstructure and surface roughness. The topographic modification of the Ni coating surface depending on the post-treatment (mechanical and chemical) after deposition was studied using AFM microscopy.
PB  - Belgrade : ETRAN Society
C3  - Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022
T1  - Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads
SP  - 398
EP  - 403
UR  - https://hdl.handle.net/21.15107/rcub_cer_5218
ER  - 

@conference{
author = "Mladenović, Ivana O. and Lamovec, Jelena S. and Obradov, Marko and Rašljić Rafajilović, Milena and Radojević, Vesna J. and Vasiljević-Radović, Dana and Nikolić, Nebojša D.",
year = "2022",
abstract = "In this investigation, nickel coatings were electrodeposited on brass substrate. The effects of 
electrodeposition process parameters such as, current density and deposition time (coatings thickness), on surface morphology and composite hardness values were studied. The 
value of the measured composite hardness by Vickers microindentation technique of the selected “hard film on soft substrate” composite system type depends on the applied indentation loads. For this reason, the microindentation loads are also included in the analysis. According to the experiment plan obtained by Design-Expert software, nickel coating has been produced on the brass cathode using galvanostatic regime (DC) with magnetic stirring of the electrolyte. The nickel 
sulphamate electrolyte with saccharine additive was used for Ni electrodeposition. Then, response surface methodology (RSM) was used to establish an adequate mathematical model. Subsequently, a mathematical model was developed to weight the effects of each input parameters (coating thickness, current density and indentation load) on the output parameter (composite hardness) of electrodeposited nickel coatings on brass substrate. According to the obtained results, the coating thickness and indentation load greatly influenced resulting composite hardness. On the other hand, coating current density primarily influenced microstructure and surface roughness. The topographic modification of the Ni coating surface depending on the post-treatment (mechanical and chemical) after deposition was studied using AFM microscopy.",
publisher = "Belgrade : ETRAN Society",
journal = "Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022",
title = "Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads",
pages = "398-403",
url = "https://hdl.handle.net/21.15107/rcub_cer_5218"
}

Mladenović, I. O., Lamovec, J. S., Obradov, M., Rašljić Rafajilović, M., Radojević, V. J., Vasiljević-Radović, D.,& Nikolić, N. D.. (2022). Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads. in Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022
Belgrade : ETRAN Society., 398-403.
https://hdl.handle.net/21.15107/rcub_cer_5218

Mladenović IO, Lamovec JS, Obradov M, Rašljić Rafajilović M, Radojević VJ, Vasiljević-Radović D, Nikolić ND. Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads. in Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022. 2022;:398-403.
https://hdl.handle.net/21.15107/rcub_cer_5218 .

Mladenović, Ivana O., Lamovec, Jelena S., Obradov, Marko, Rašljić Rafajilović, Milena, Radojević, Vesna J., Vasiljević-Radović, Dana, Nikolić, Nebojša D., "Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads" in Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022 (2022):398-403,
https://hdl.handle.net/21.15107/rcub_cer_5218 .

TY  - JOUR
AU  - Vićentić, Teodora
AU  - Rašljić Rafajilović, Milena
AU  - Ilić, Stefan
AU  - Koteska, Bojana
AU  - Madevska Bogdanova, Ana
AU  - Pašti, Igor
AU  - Lehocki, Fedor
AU  - Spasenović, Marko
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5559
AB  - The HeartPy Python toolkit for analysis of noisy signals from heart rate measurements is an excellent tool to use in conjunction with novel wearable sensors. Nevertheless, most of the work to date has focused on applying the toolkit to data measured with commercially available sensors. We demonstrate the application of the HeartPy functions to data obtained with a novel graphene-based heartbeat sensor. We produce the sensor by laser-inducing graphene on a flexible polyimide substrate. Both graphene on the polyimide substrate and graphene transferred onto a PDMS substrate show piezoresistive behavior that can be utilized to measure human heartbeat by registering median cubital vein motion during blood pumping. We process electrical resistance data from the graphene sensor using HeartPy and demonstrate extraction of several heartbeat parameters, in agreement with measurements taken with independent reference sensors. We compare the quality of the heartbeat signal from graphene on different substrates, demonstrating that in all cases the device yields results consistent with reference sensors. Our work is a first demonstration of successful application of HeartPy to analysis of data from a sensor in development.
PB  - MDPI AG
T2  - Sensors
T1  - Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis
VL  - 22
IS  - 17
SP  - 6326
DO  - 10.3390/s22176326
ER  - 

@article{
author = "Vićentić, Teodora and Rašljić Rafajilović, Milena and Ilić, Stefan and Koteska, Bojana and Madevska Bogdanova, Ana and Pašti, Igor and Lehocki, Fedor and Spasenović, Marko",
year = "2022",
abstract = "The HeartPy Python toolkit for analysis of noisy signals from heart rate measurements is an excellent tool to use in conjunction with novel wearable sensors. Nevertheless, most of the work to date has focused on applying the toolkit to data measured with commercially available sensors. We demonstrate the application of the HeartPy functions to data obtained with a novel graphene-based heartbeat sensor. We produce the sensor by laser-inducing graphene on a flexible polyimide substrate. Both graphene on the polyimide substrate and graphene transferred onto a PDMS substrate show piezoresistive behavior that can be utilized to measure human heartbeat by registering median cubital vein motion during blood pumping. We process electrical resistance data from the graphene sensor using HeartPy and demonstrate extraction of several heartbeat parameters, in agreement with measurements taken with independent reference sensors. We compare the quality of the heartbeat signal from graphene on different substrates, demonstrating that in all cases the device yields results consistent with reference sensors. Our work is a first demonstration of successful application of HeartPy to analysis of data from a sensor in development.",
publisher = "MDPI AG",
journal = "Sensors",
title = "Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis",
volume = "22",
number = "17",
pages = "6326",
doi = "10.3390/s22176326"
}

Vićentić, T., Rašljić Rafajilović, M., Ilić, S., Koteska, B., Madevska Bogdanova, A., Pašti, I., Lehocki, F.,& Spasenović, M.. (2022). Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis. in Sensors
MDPI AG., 22(17), 6326.
https://doi.org/10.3390/s22176326

Vićentić T, Rašljić Rafajilović M, Ilić S, Koteska B, Madevska Bogdanova A, Pašti I, Lehocki F, Spasenović M. Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis. in Sensors. 2022;22(17):6326.
doi:10.3390/s22176326 .

Vićentić, Teodora, Rašljić Rafajilović, Milena, Ilić, Stefan, Koteska, Bojana, Madevska Bogdanova, Ana, Pašti, Igor, Lehocki, Fedor, Spasenović, Marko, "Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis" in Sensors, 22, no. 17 (2022):6326,
https://doi.org/10.3390/s22176326 . .

TY  - CONF
AU  - Vićentić, Teodora
AU  - Rašljić Rafajilović, Milena
AU  - Ilić, Stefan
AU  - Koteska, Bojana
AU  - Madevska Bogdanova, Ana
AU  - Pašti, Igor
AU  - Lehocki, Fedor
AU  - Spasenović, Marko
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5722
AB  - Wearable sensors are reaching maturity, at the
same time as technologies for communicating physiological data
and those for analyzing massive amounts of data. The
combination of the three technologies invites for applications in
mass screening of personal health through smart algorithm
deployment on data from wearable patches. We propose and
present an architecture for a wearable patch to be used in mass
casualty emergency situations, or for hospital bedside
monitoring. The proposed patch will contain multiple sensors of
physiological parameters. We propose to create respiration and
heartbeat sensors made of laser induced graphene. We show
that graphene on flexible substrates can be utilized in
conjunction with the Python heart rate analysis toolkit -
HeartPy to reliably acquire physiological data from human
subjects
PB  - The Institute of Doctors Engineers and Scientists (IDES)
PB  - The Association of Computer Electrical Electronics and Communication (ACEECom)
C3  - 19th International Conference on Informatics and Information Technologies, CIIT 2022
T1  - Wearable Patch for Mass Casualty Screening with Graphene Sensors
SP  - 99
EP  - 102
UR  - https://hdl.handle.net/21.15107/rcub_cer_5722
ER  - 

@conference{
author = "Vićentić, Teodora and Rašljić Rafajilović, Milena and Ilić, Stefan and Koteska, Bojana and Madevska Bogdanova, Ana and Pašti, Igor and Lehocki, Fedor and Spasenović, Marko",
year = "2022",
abstract = "Wearable sensors are reaching maturity, at the
same time as technologies for communicating physiological data
and those for analyzing massive amounts of data. The
combination of the three technologies invites for applications in
mass screening of personal health through smart algorithm
deployment on data from wearable patches. We propose and
present an architecture for a wearable patch to be used in mass
casualty emergency situations, or for hospital bedside
monitoring. The proposed patch will contain multiple sensors of
physiological parameters. We propose to create respiration and
heartbeat sensors made of laser induced graphene. We show
that graphene on flexible substrates can be utilized in
conjunction with the Python heart rate analysis toolkit -
HeartPy to reliably acquire physiological data from human
subjects",
publisher = "The Institute of Doctors Engineers and Scientists (IDES), The Association of Computer Electrical Electronics and Communication (ACEECom)",
journal = "19th International Conference on Informatics and Information Technologies, CIIT 2022",
title = "Wearable Patch for Mass Casualty Screening with Graphene Sensors",
pages = "99-102",
url = "https://hdl.handle.net/21.15107/rcub_cer_5722"
}

Vićentić, T., Rašljić Rafajilović, M., Ilić, S., Koteska, B., Madevska Bogdanova, A., Pašti, I., Lehocki, F.,& Spasenović, M.. (2022). Wearable Patch for Mass Casualty Screening with Graphene Sensors. in 19th International Conference on Informatics and Information Technologies, CIIT 2022
The Institute of Doctors Engineers and Scientists (IDES)., 99-102.
https://hdl.handle.net/21.15107/rcub_cer_5722

Vićentić T, Rašljić Rafajilović M, Ilić S, Koteska B, Madevska Bogdanova A, Pašti I, Lehocki F, Spasenović M. Wearable Patch for Mass Casualty Screening with Graphene Sensors. in 19th International Conference on Informatics and Information Technologies, CIIT 2022. 2022;:99-102.
https://hdl.handle.net/21.15107/rcub_cer_5722 .

Vićentić, Teodora, Rašljić Rafajilović, Milena, Ilić, Stefan, Koteska, Bojana, Madevska Bogdanova, Ana, Pašti, Igor, Lehocki, Fedor, Spasenović, Marko, "Wearable Patch for Mass Casualty Screening with Graphene Sensors" in 19th International Conference on Informatics and Information Technologies, CIIT 2022 (2022):99-102,
https://hdl.handle.net/21.15107/rcub_cer_5722 .

TY  - GEN
AU  - Jovanov, Vladislav
AU  - Rašljić-Rafajilović, Milena
AU  - Mladenović, Ivana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5844
AB  - Ово техничко решење се односи на анализу отвореног угла површине танких филмова након наношења на текстуиране супстрате. Танкослоjне силициjумске соларне ћелиjе се фабрикуjу на текстуираним супстратима да би се повећала апсорпциjа светлости
услед дифракциjе и расипања светлости [1–13]. Међутим, превелика храпавост текстуираних супстрата може довести до поjаве електричних дефеката приликом фабрикациjе
соларних ћелиjа од микрокристалног силициjума [8, 11]. Пошто ориjентациjа раста микрокристалног силициjума зависи од отвореног угла површине на коjу се филм наноси, на
текстуираним супстратима кристални региони расту jедни према другима што на краjу
доводи до поjаве пукотине у филму где долази до заробљавања и рекомбинациjе носилаца
наелектрисања. Ескперименталне студиjе су показале да иако jе на неким текстуираним
супстратима оптичка апсорпциjа светлости већа, остварене електричне карактеристике
фабрикованих соларних ћелиjа су лошиjе управо због поjаве дефеката [8, 11]
1
Ово техничко решење омогућава да се симулира изглед танког филма нанешног на
текстуирани супстрат и затим анализира отворени угао површине унутар филма. Тако
одређени отворени углови су приказани у интерактивном графику где jе могуће тачно
увидети на коjи местима и при коjоj дебљини филма би дошло до поjаве формирања пукотине. Коришћењем овог техничког решења практично се остваруjе виртуелна инспекциjа
танкослоjних соларних ћелиjа без стварне фабрикациjе соларних ћелиjа чиме се значаjно
штеди на лабораториjским ресурсима.
PB  - ИХТМ - Центар за микроелектронске технологиjе, Универзитет у Београду
T1  - Softversko rešenje za analizu otvorenog ugla površine tankih filmova nanešenih na tekstuirane supstrate
UR  - https://hdl.handle.net/21.15107/rcub_cer_5844
ER  - 

@misc{
author = "Jovanov, Vladislav and Rašljić-Rafajilović, Milena and Mladenović, Ivana",
year = "2021",
abstract = "Ово техничко решење се односи на анализу отвореног угла површине танких филмова након наношења на текстуиране супстрате. Танкослоjне силициjумске соларне ћелиjе се фабрикуjу на текстуираним супстратима да би се повећала апсорпциjа светлости
услед дифракциjе и расипања светлости [1–13]. Међутим, превелика храпавост текстуираних супстрата може довести до поjаве електричних дефеката приликом фабрикациjе
соларних ћелиjа од микрокристалног силициjума [8, 11]. Пошто ориjентациjа раста микрокристалног силициjума зависи од отвореног угла површине на коjу се филм наноси, на
текстуираним супстратима кристални региони расту jедни према другима што на краjу
доводи до поjаве пукотине у филму где долази до заробљавања и рекомбинациjе носилаца
наелектрисања. Ескперименталне студиjе су показале да иако jе на неким текстуираним
супстратима оптичка апсорпциjа светлости већа, остварене електричне карактеристике
фабрикованих соларних ћелиjа су лошиjе управо због поjаве дефеката [8, 11]
1
Ово техничко решење омогућава да се симулира изглед танког филма нанешног на
текстуирани супстрат и затим анализира отворени угао површине унутар филма. Тако
одређени отворени углови су приказани у интерактивном графику где jе могуће тачно
увидети на коjи местима и при коjоj дебљини филма би дошло до поjаве формирања пукотине. Коришћењем овог техничког решења практично се остваруjе виртуелна инспекциjа
танкослоjних соларних ћелиjа без стварне фабрикациjе соларних ћелиjа чиме се значаjно
штеди на лабораториjским ресурсима.",
publisher = "ИХТМ - Центар за микроелектронске технологиjе, Универзитет у Београду",
title = "Softversko rešenje za analizu otvorenog ugla površine tankih filmova nanešenih na tekstuirane supstrate",
url = "https://hdl.handle.net/21.15107/rcub_cer_5844"
}

Jovanov, V., Rašljić-Rafajilović, M.,& Mladenović, I.. (2021). Softversko rešenje za analizu otvorenog ugla površine tankih filmova nanešenih na tekstuirane supstrate. 
ИХТМ - Центар за микроелектронске технологиjе, Универзитет у Београду..
https://hdl.handle.net/21.15107/rcub_cer_5844

Jovanov V, Rašljić-Rafajilović M, Mladenović I. Softversko rešenje za analizu otvorenog ugla površine tankih filmova nanešenih na tekstuirane supstrate. 2021;.
https://hdl.handle.net/21.15107/rcub_cer_5844 .

Jovanov, Vladislav, Rašljić-Rafajilović, Milena, Mladenović, Ivana, "Softversko rešenje za analizu otvorenog ugla površine tankih filmova nanešenih na tekstuirane supstrate" (2021),
https://hdl.handle.net/21.15107/rcub_cer_5844 .

TY  - JOUR
AU  - Smiljanić, Milče M.
AU  - Radjenović, Branislav
AU  - Lazić, Žarko
AU  - Radmilović Radjenović, Marija
AU  - Rašljić Rafajilović, Milena
AU  - Cvetanović Zobenica, Katarina
AU  - Milinković, Evgenija
AU  - Filipović, Ana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4453
AB  - In  this  paper,  fabrication  of  silicon  microchannels  with  integrated  obstacles  by  using  25 wt.% tetramethylammonium  hydroxide  (TMAH)  aqueous  solution  at  the  temperature  of  80 C  is presented  and  analysed.  We  studied  basic  island  patterns,  which present  union  of  two symmetrical parallelograms with the sides along predetermined crystallographic directions <n10> (2<n<8) and <100>. Acute angles of the parallelograms were smaller than 45o. We have derived analytical  relations  for  determining  dimensions  of  the  integrated  obstacles.  The  developed etching  technique  provides  reduction  of  the  distance  between  the  obstacles.  Before  the experiments, we performed simulations of pattern etching based on the level set method and presented  evolution  of  the  etched basic  patterns  for  the  predetermined  crystallographic directions  <n10>.  Combination  of  basic  patterns  with  sides  along  the  <610>  and  <100> crystallographic  directions  is  used  to  fabricate  a  matrix  of  two  row  of  silicon  obstacles  in  a microchannel.   We   obtained   a   good   agreement   between   the   experimental   results   and simulations.   Our   results   enable   simple  and   cost-effective  fabrication   of  various   complex microfluidic silicon platforms with integrated obstacles.
AB  - U ovom radu je prezentovana i analizirana izrada silicijumskih mikrokanala sa integrisanim preprekama u vodenom rastvoru 25 mas.% tetrametilamonijum hidroksida (TMAH) na temperaturi od 80 oC. Proučavani su osnovni oblici maski koji predstavljaju uniju dva simetrična ostrva u obliku paralelograma čije su stranice duž unapred određenih kristalografskih pravaca (2<n<8) i <100>. Oštri uglovi paralelograma su manji od 45˚. Izvedene su formule za izračunavanje dimenzija integrisanih prepreka. Razvijena je tehnika nagrizanja koja smanjuje rastojanje između prepreka. Pre eksperimenata izvršene su simulacije osnovnih oblika koje se baziraju na metodi implicitno definisanih nivoa (engl. level set method). Prezentovan je razvoj nagrizanih osnovnih oblika maski za unapred određene kristalografske pravce <n10>. Kombinacija osnovnih oblika maski čije su stranice duž kristalografskih pravaca <610> i <100> je iskorišćena za izradu dva reda matrice silicijumskih prepreka u mikrokanalu. Dobijeno je dobro slaganje između eksperimenata i simulacija. Dobijeni rezultati omogućavaju jednostavnu i jeftinu izradu različitih kompleksnih mikrofluidnih silicijumskih platformi sa integrisanim preprekama.
PB  - Association of Chemical Engeneers of Serbia
T2  - Hemijska industrija
T1  - Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt % TMAH
T1  - Kontrolisan raspored integrisanih prepreka u silicijumskim mikrokanalima nagrizanim u 25 mas.% rastvoru tetrametilamonijum hidroksida
VL  - 75
IS  - 1
SP  - 15
EP  - 24
DO  - 10.2298/HEMIND200807005S
ER  - 

@article{
author = "Smiljanić, Milče M. and Radjenović, Branislav and Lazić, Žarko and Radmilović Radjenović, Marija and Rašljić Rafajilović, Milena and Cvetanović Zobenica, Katarina and Milinković, Evgenija and Filipović, Ana",
year = "2021",
abstract = "In  this  paper,  fabrication  of  silicon  microchannels  with  integrated  obstacles  by  using  25 wt.% tetramethylammonium  hydroxide  (TMAH)  aqueous  solution  at  the  temperature  of  80 C  is presented  and  analysed.  We  studied  basic  island  patterns,  which present  union  of  two symmetrical parallelograms with the sides along predetermined crystallographic directions <n10> (2<n<8) and <100>. Acute angles of the parallelograms were smaller than 45o. We have derived analytical  relations  for  determining  dimensions  of  the  integrated  obstacles.  The  developed etching  technique  provides  reduction  of  the  distance  between  the  obstacles.  Before  the experiments, we performed simulations of pattern etching based on the level set method and presented  evolution  of  the  etched basic  patterns  for  the  predetermined  crystallographic directions  <n10>.  Combination  of  basic  patterns  with  sides  along  the  <610>  and  <100> crystallographic  directions  is  used  to  fabricate  a  matrix  of  two  row  of  silicon  obstacles  in  a microchannel.   We   obtained   a   good   agreement   between   the   experimental   results   and simulations.   Our   results   enable   simple  and   cost-effective  fabrication   of  various   complex microfluidic silicon platforms with integrated obstacles., U ovom radu je prezentovana i analizirana izrada silicijumskih mikrokanala sa integrisanim preprekama u vodenom rastvoru 25 mas.% tetrametilamonijum hidroksida (TMAH) na temperaturi od 80 oC. Proučavani su osnovni oblici maski koji predstavljaju uniju dva simetrična ostrva u obliku paralelograma čije su stranice duž unapred određenih kristalografskih pravaca (2<n<8) i <100>. Oštri uglovi paralelograma su manji od 45˚. Izvedene su formule za izračunavanje dimenzija integrisanih prepreka. Razvijena je tehnika nagrizanja koja smanjuje rastojanje između prepreka. Pre eksperimenata izvršene su simulacije osnovnih oblika koje se baziraju na metodi implicitno definisanih nivoa (engl. level set method). Prezentovan je razvoj nagrizanih osnovnih oblika maski za unapred određene kristalografske pravce <n10>. Kombinacija osnovnih oblika maski čije su stranice duž kristalografskih pravaca <610> i <100> je iskorišćena za izradu dva reda matrice silicijumskih prepreka u mikrokanalu. Dobijeno je dobro slaganje između eksperimenata i simulacija. Dobijeni rezultati omogućavaju jednostavnu i jeftinu izradu različitih kompleksnih mikrofluidnih silicijumskih platformi sa integrisanim preprekama.",
publisher = "Association of Chemical Engeneers of Serbia",
journal = "Hemijska industrija",
title = "Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt % TMAH, Kontrolisan raspored integrisanih prepreka u silicijumskim mikrokanalima nagrizanim u 25 mas.% rastvoru tetrametilamonijum hidroksida",
volume = "75",
number = "1",
pages = "15-24",
doi = "10.2298/HEMIND200807005S"
}

Smiljanić, M. M., Radjenović, B., Lazić, Ž., Radmilović Radjenović, M., Rašljić Rafajilović, M., Cvetanović Zobenica, K., Milinković, E.,& Filipović, A.. (2021). Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt % TMAH. in Hemijska industrija
Association of Chemical Engeneers of Serbia., 75(1), 15-24.
https://doi.org/10.2298/HEMIND200807005S

Smiljanić MM, Radjenović B, Lazić Ž, Radmilović Radjenović M, Rašljić Rafajilović M, Cvetanović Zobenica K, Milinković E, Filipović A. Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt % TMAH. in Hemijska industrija. 2021;75(1):15-24.
doi:10.2298/HEMIND200807005S .

Smiljanić, Milče M., Radjenović, Branislav, Lazić, Žarko, Radmilović Radjenović, Marija, Rašljić Rafajilović, Milena, Cvetanović Zobenica, Katarina, Milinković, Evgenija, Filipović, Ana, "Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt % TMAH" in Hemijska industrija, 75, no. 1 (2021):15-24,
https://doi.org/10.2298/HEMIND200807005S . .

TY  - GEN
AU  - Sarajlić, Milija
AU  - Smiljanić, Milče M.
AU  - Frantlović, Miloš
AU  - Rašljić, Milena
AU  - Cvetanović, Katarina
AU  - Lazić, Žarko
AU  - Vasiljević-Radović, Dana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4750
AB  - Ovo tehničko rešenje obuhvata razvoj i realizaciju senzora temperature čiji se princip rada zasniva na razlici temperaturnih koeficijenata električne otpornosti (TCR) četiri tankoslojna otpornika povezana u konfiguraciju Vitstonovog mosta. Ovo je nov pristup koji nije ranije korišćen. Sva četiri otpornika su izložena istoj temperaturi sa jedinom razlikom da su dva otpornika prekrivena tvrdo zapečenim (umreženim) fotorezistom debljine 2,3 mm dok su druga dva otvorena i izložena spoljnjem vazduhu. Ovo pravi temperaturnu razliku između otpornika a takođe i razliku temperaturnih koeficijenata otpornosti što u konfiguraciji Vitstonovog mosta daje signal proporcionalan ovoj razlici.
PB  - IHTM-Centar za mikroelektronske tehnologije
T2  - Tehničko rešenje
T1  - Senzor temperature za merenja u vazduhu zasnovan na razlici temperaturnih koeficijenata tankoslojnih otpornika
UR  - https://hdl.handle.net/21.15107/rcub_cer_4750
ER  - 

@misc{
author = "Sarajlić, Milija and Smiljanić, Milče M. and Frantlović, Miloš and Rašljić, Milena and Cvetanović, Katarina and Lazić, Žarko and Vasiljević-Radović, Dana",
year = "2021",
abstract = "Ovo tehničko rešenje obuhvata razvoj i realizaciju senzora temperature čiji se princip rada zasniva na razlici temperaturnih koeficijenata električne otpornosti (TCR) četiri tankoslojna otpornika povezana u konfiguraciju Vitstonovog mosta. Ovo je nov pristup koji nije ranije korišćen. Sva četiri otpornika su izložena istoj temperaturi sa jedinom razlikom da su dva otpornika prekrivena tvrdo zapečenim (umreženim) fotorezistom debljine 2,3 mm dok su druga dva otvorena i izložena spoljnjem vazduhu. Ovo pravi temperaturnu razliku između otpornika a takođe i razliku temperaturnih koeficijenata otpornosti što u konfiguraciji Vitstonovog mosta daje signal proporcionalan ovoj razlici.",
publisher = "IHTM-Centar za mikroelektronske tehnologije",
journal = "Tehničko rešenje",
title = "Senzor temperature za merenja u vazduhu zasnovan na razlici temperaturnih koeficijenata tankoslojnih otpornika",
url = "https://hdl.handle.net/21.15107/rcub_cer_4750"
}

Sarajlić, M., Smiljanić, M. M., Frantlović, M., Rašljić, M., Cvetanović, K., Lazić, Ž.,& Vasiljević-Radović, D.. (2021). Senzor temperature za merenja u vazduhu zasnovan na razlici temperaturnih koeficijenata tankoslojnih otpornika. in Tehničko rešenje
IHTM-Centar za mikroelektronske tehnologije..
https://hdl.handle.net/21.15107/rcub_cer_4750

Sarajlić M, Smiljanić MM, Frantlović M, Rašljić M, Cvetanović K, Lazić Ž, Vasiljević-Radović D. Senzor temperature za merenja u vazduhu zasnovan na razlici temperaturnih koeficijenata tankoslojnih otpornika. in Tehničko rešenje. 2021;.
https://hdl.handle.net/21.15107/rcub_cer_4750 .

Sarajlić, Milija, Smiljanić, Milče M., Frantlović, Miloš, Rašljić, Milena, Cvetanović, Katarina, Lazić, Žarko, Vasiljević-Radović, Dana, "Senzor temperature za merenja u vazduhu zasnovan na razlici temperaturnih koeficijenata tankoslojnih otpornika" in Tehničko rešenje (2021),
https://hdl.handle.net/21.15107/rcub_cer_4750 .

TY  - CONF
AU  - Smiljanić, Milče M.
AU  - Lazić, Žarko
AU  - Milinković, Evgenija
AU  - Cvetanović, Katarina
AU  - Rašljić Rafajilović, Milena
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4855
AB  - In this paper, a new concave corner compensation for etching of (100) silicon substrates in 25 wt % TMAH water solution at the temperature of 80°C is presented and analysed. The aim of developed technique is to reduce area of the etched {111} planes when there is a need to obtain 3D silicon structures with sidewalls vertical to substrate's surface. Appearance of the slow etching {111} planes cannot be eliminated. All crystallographic planes that appeared during evolution of etched compensations are determined. All the parameters necessary to apply developed concave corner compensation in various designs are provided. As a result, the side along the [removed] crystallographic direction in the masking layer of the unwanted {111} planes is reduced approximately 3 times.
PB  - Belgrade : Institute of Electrical and Electronics Engineers Inc.
C3  - 32nd IEEE International Conference on Microelectronics, MIEL 2021
T1  - A Simple Concave Corner Compensation of Etched Si(100) in 25 wt % TMAH Water Solution
SP  - 193
EP  - 196
DO  - 10.1109/MIEL52794.2021.9569186
ER  - 

@conference{
author = "Smiljanić, Milče M. and Lazić, Žarko and Milinković, Evgenija and Cvetanović, Katarina and Rašljić Rafajilović, Milena",
year = "2021",
abstract = "In this paper, a new concave corner compensation for etching of (100) silicon substrates in 25 wt % TMAH water solution at the temperature of 80°C is presented and analysed. The aim of developed technique is to reduce area of the etched {111} planes when there is a need to obtain 3D silicon structures with sidewalls vertical to substrate's surface. Appearance of the slow etching {111} planes cannot be eliminated. All crystallographic planes that appeared during evolution of etched compensations are determined. All the parameters necessary to apply developed concave corner compensation in various designs are provided. As a result, the side along the [removed] crystallographic direction in the masking layer of the unwanted {111} planes is reduced approximately 3 times.",
publisher = "Belgrade : Institute of Electrical and Electronics Engineers Inc.",
journal = "32nd IEEE International Conference on Microelectronics, MIEL 2021",
title = "A Simple Concave Corner Compensation of Etched Si(100) in 25 wt % TMAH Water Solution",
pages = "193-196",
doi = "10.1109/MIEL52794.2021.9569186"
}

Smiljanić, M. M., Lazić, Ž., Milinković, E., Cvetanović, K.,& Rašljić Rafajilović, M.. (2021). A Simple Concave Corner Compensation of Etched Si(100) in 25 wt % TMAH Water Solution. in 32nd IEEE International Conference on Microelectronics, MIEL 2021
Belgrade : Institute of Electrical and Electronics Engineers Inc.., 193-196.
https://doi.org/10.1109/MIEL52794.2021.9569186

Smiljanić MM, Lazić Ž, Milinković E, Cvetanović K, Rašljić Rafajilović M. A Simple Concave Corner Compensation of Etched Si(100) in 25 wt % TMAH Water Solution. in 32nd IEEE International Conference on Microelectronics, MIEL 2021. 2021;:193-196.
doi:10.1109/MIEL52794.2021.9569186 .

Smiljanić, Milče M., Lazić, Žarko, Milinković, Evgenija, Cvetanović, Katarina, Rašljić Rafajilović, Milena, "A Simple Concave Corner Compensation of Etched Si(100) in 25 wt % TMAH Water Solution" in 32nd IEEE International Conference on Microelectronics, MIEL 2021 (2021):193-196,
https://doi.org/10.1109/MIEL52794.2021.9569186 . .

TY  - JOUR
AU  - Bošković, Marko V.
AU  - Šljukić, Biljana
AU  - Vasiljević-Radović, Dana
AU  - Radulović, Katarina
AU  - Rašljić Rafajilović, Milena
AU  - Frantlović, Miloš
AU  - Sarajlić, Milija
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4697
AB  - A detailed examination of the principle of operation behind the functioning of the full-self-powered humidity sensor is presented. The sensor has been realized as a structure consisting of an interdigitated capacitor with aluminum thin-film digits. In this work, the details of its fabrication and activation are described in detail. The performed XRD, FTIR, SEM, AFM, and EIS analyses, as well as noise measurements, revealed that the dominant process of electricity generation is the electrochemical reaction between the sensor’s aluminum electrodes and the water from humid air in the presence of oxygen, which was the main goal of this work. The response of the sensor to human breath is also presented as a demonstration of its possible practical application.
PB  - MDPI
T2  - Sensors
T1  - Full-self-powered humidity sensor based on electrochemical aluminum–water reaction
VL  - 21
IS  - 10
SP  - 3486
DO  - 10.3390/s21103486
ER  - 

@article{
author = "Bošković, Marko V. and Šljukić, Biljana and Vasiljević-Radović, Dana and Radulović, Katarina and Rašljić Rafajilović, Milena and Frantlović, Miloš and Sarajlić, Milija",
year = "2021",
abstract = "A detailed examination of the principle of operation behind the functioning of the full-self-powered humidity sensor is presented. The sensor has been realized as a structure consisting of an interdigitated capacitor with aluminum thin-film digits. In this work, the details of its fabrication and activation are described in detail. The performed XRD, FTIR, SEM, AFM, and EIS analyses, as well as noise measurements, revealed that the dominant process of electricity generation is the electrochemical reaction between the sensor’s aluminum electrodes and the water from humid air in the presence of oxygen, which was the main goal of this work. The response of the sensor to human breath is also presented as a demonstration of its possible practical application.",
publisher = "MDPI",
journal = "Sensors",
title = "Full-self-powered humidity sensor based on electrochemical aluminum–water reaction",
volume = "21",
number = "10",
pages = "3486",
doi = "10.3390/s21103486"
}

Bošković, M. V., Šljukić, B., Vasiljević-Radović, D., Radulović, K., Rašljić Rafajilović, M., Frantlović, M.,& Sarajlić, M.. (2021). Full-self-powered humidity sensor based on electrochemical aluminum–water reaction. in Sensors
MDPI., 21(10), 3486.
https://doi.org/10.3390/s21103486

Bošković MV, Šljukić B, Vasiljević-Radović D, Radulović K, Rašljić Rafajilović M, Frantlović M, Sarajlić M. Full-self-powered humidity sensor based on electrochemical aluminum–water reaction. in Sensors. 2021;21(10):3486.
doi:10.3390/s21103486 .

Bošković, Marko V., Šljukić, Biljana, Vasiljević-Radović, Dana, Radulović, Katarina, Rašljić Rafajilović, Milena, Frantlović, Miloš, Sarajlić, Milija, "Full-self-powered humidity sensor based on electrochemical aluminum–water reaction" in Sensors, 21, no. 10 (2021):3486,
https://doi.org/10.3390/s21103486 . .

TY  - THES
AU  - Rašljić, Milena
PY  - 2021
UR  - https://eteze.bg.ac.rs/application/showtheses?thesesId=8593
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:25699/bdef:Content/download
UR  - https://plus.cobiss.net/cobiss/sr/sr/bib/61156873
UR  - https://nardus.mpn.gov.rs/handle/123456789/19090
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5321
AB  - Mikroreaktori su mikrofluidni uređaji u kojima se odvijaju hemijske reakcije. U ovom radu istraživana je mogućnost izrade mikroreaktora za sintezu nanočestica. Prednosti ovakvih naprava su smanjenje vremena potrebnog za sintezu, kao i bolja kontrola same reakcije kao i veličine dobijenih čestica.U ovoj doktorskoj disertaciji predstavljena su dva tipa mikroreaktora za sintezu nanočestica titan(IV)-oksida. Mikroreaktori su realizovani sa integrisanim grejačima i sa različitim dimenzijama mikrokanala. Prvi tip mikroreaktora je napravljen od silicijuma (Si) i Pyrex stakla sa integrisanim grejačem koji je realizovan postupkom difuzije p-tipa, a drugi tip mikroreaktora je napravljen od polidimetilsiloksana (PDMS-a) sa integrisanim grejačima od kantal žice. S obzirom na značaj temperature kao parametra, predstavljeni su eksperimentalni rezultati kao i rezultati simulacije za ponašanje grejača kod oba tipa mikroreaktora. Pored toga prikazana je i mogućnost plazmonskog poboljšanja mikroreaktora. Urađeni su preliminarni eksperimenti za izradu hrapavih površina, kao i numeričke simulacije optičkih poboljšanja na hrapavim površinama.Kao potvrda funkcionalnosti izrađenih mikroreaktora urađena je sinteza nanočestica titan(IV)-oksida i njihova karakterizacija. Mikroreaktor napravljen od PDMS-a pokazao je bolju funkcionalnost od mikroreaktora napravljenog od silicijuma i Pyrex stakla. Pokazano je da u toku vremena od 2 min i na nižim temperaturama nastaju amorfne nanočestice sa delimičnio izgrađenim kristalitima koji pripadaju anatas i rutil fazi, a koje se naknadnim odgrevanjem u potpunosti prevode iz amorfne u anatas fazu. U daljem radu će se raditi na optimizaciji uslova reakcije u mikroreaktorima, unapređenju dizajna kao i primeni ultrazvuka za sintezu nanočestica.
AB  - Microreactors are microfluidic devices in which chemical reactions take place. The advantages of such devices are the reduction of the time required for the synthesis, better control of the reaction and the size of the nanoparticles. In this doctoral dissertation, two types of microreactors for the synthesis of titanium(IV)-oxide nanoparticles are presented. Both types of microreactors had integrated heaters and different dimensions of microchannels. The first type of microreactor is made of silicon and Pyrex glass with integrated heater which is made by p-type diffusion process, and the second type of microreactor is made of polydimethylsiloxane (PDMS) with integrated heater made of wire. Considering the importance of temperature in synthesis, experimental results as well as simulation results for the behavior of heaters in both types of microreactors are presented. In addition, the possibility of plasmonic improvement of the microreactor was shown. Preliminary experiments for the construction of rough surfaces were performed, as well as numerical simulations of optical improvements on rough surfaces.The synthesis of titanium(IV)-oxide nanoparticles is used for confirmation of the functionality of the microreactors. A microreactor made of PDMS showed better functionality than a microreactor made of silicon and Pyrex glass. It has been shown that after 2 min of reaction time in microreactors amorphous nanoparticles are formed, with partially formed crystallites which are belonged to the anatas and rutile phases. Amorphous phase are completely converted to the anatas phase by subsequent heating. In the further work, we will work on the optimization of design and reaction conditions in microreactors, as well as application of ultrasound for the synthesis of nanoparticles.
PB  - Универзитет у Београду, Факултет за физичку хемију
T2  - Универзитет у Београду
T1  - Mikrokanali u staklu i polidimetilsiloksanu kao otvoreni reaktori za sintezu nanočestica titan(IV)-oksida
UR  - https://hdl.handle.net/21.15107/rcub_nardus_19090
ER  - 

@phdthesis{
author = "Rašljić, Milena",
year = "2021",
abstract = "Mikroreaktori su mikrofluidni uređaji u kojima se odvijaju hemijske reakcije. U ovom radu istraživana je mogućnost izrade mikroreaktora za sintezu nanočestica. Prednosti ovakvih naprava su smanjenje vremena potrebnog za sintezu, kao i bolja kontrola same reakcije kao i veličine dobijenih čestica.U ovoj doktorskoj disertaciji predstavljena su dva tipa mikroreaktora za sintezu nanočestica titan(IV)-oksida. Mikroreaktori su realizovani sa integrisanim grejačima i sa različitim dimenzijama mikrokanala. Prvi tip mikroreaktora je napravljen od silicijuma (Si) i Pyrex stakla sa integrisanim grejačem koji je realizovan postupkom difuzije p-tipa, a drugi tip mikroreaktora je napravljen od polidimetilsiloksana (PDMS-a) sa integrisanim grejačima od kantal žice. S obzirom na značaj temperature kao parametra, predstavljeni su eksperimentalni rezultati kao i rezultati simulacije za ponašanje grejača kod oba tipa mikroreaktora. Pored toga prikazana je i mogućnost plazmonskog poboljšanja mikroreaktora. Urađeni su preliminarni eksperimenti za izradu hrapavih površina, kao i numeričke simulacije optičkih poboljšanja na hrapavim površinama.Kao potvrda funkcionalnosti izrađenih mikroreaktora urađena je sinteza nanočestica titan(IV)-oksida i njihova karakterizacija. Mikroreaktor napravljen od PDMS-a pokazao je bolju funkcionalnost od mikroreaktora napravljenog od silicijuma i Pyrex stakla. Pokazano je da u toku vremena od 2 min i na nižim temperaturama nastaju amorfne nanočestice sa delimičnio izgrađenim kristalitima koji pripadaju anatas i rutil fazi, a koje se naknadnim odgrevanjem u potpunosti prevode iz amorfne u anatas fazu. U daljem radu će se raditi na optimizaciji uslova reakcije u mikroreaktorima, unapređenju dizajna kao i primeni ultrazvuka za sintezu nanočestica., Microreactors are microfluidic devices in which chemical reactions take place. The advantages of such devices are the reduction of the time required for the synthesis, better control of the reaction and the size of the nanoparticles. In this doctoral dissertation, two types of microreactors for the synthesis of titanium(IV)-oxide nanoparticles are presented. Both types of microreactors had integrated heaters and different dimensions of microchannels. The first type of microreactor is made of silicon and Pyrex glass with integrated heater which is made by p-type diffusion process, and the second type of microreactor is made of polydimethylsiloxane (PDMS) with integrated heater made of wire. Considering the importance of temperature in synthesis, experimental results as well as simulation results for the behavior of heaters in both types of microreactors are presented. In addition, the possibility of plasmonic improvement of the microreactor was shown. Preliminary experiments for the construction of rough surfaces were performed, as well as numerical simulations of optical improvements on rough surfaces.The synthesis of titanium(IV)-oxide nanoparticles is used for confirmation of the functionality of the microreactors. A microreactor made of PDMS showed better functionality than a microreactor made of silicon and Pyrex glass. It has been shown that after 2 min of reaction time in microreactors amorphous nanoparticles are formed, with partially formed crystallites which are belonged to the anatas and rutile phases. Amorphous phase are completely converted to the anatas phase by subsequent heating. In the further work, we will work on the optimization of design and reaction conditions in microreactors, as well as application of ultrasound for the synthesis of nanoparticles.",
publisher = "Универзитет у Београду, Факултет за физичку хемију",
journal = "Универзитет у Београду",
title = "Mikrokanali u staklu i polidimetilsiloksanu kao otvoreni reaktori za sintezu nanočestica titan(IV)-oksida",
url = "https://hdl.handle.net/21.15107/rcub_nardus_19090"
}

Rašljić, M.. (2021). Mikrokanali u staklu i polidimetilsiloksanu kao otvoreni reaktori za sintezu nanočestica titan(IV)-oksida. in Универзитет у Београду
Универзитет у Београду, Факултет за физичку хемију..
https://hdl.handle.net/21.15107/rcub_nardus_19090

Rašljić M. Mikrokanali u staklu i polidimetilsiloksanu kao otvoreni reaktori za sintezu nanočestica titan(IV)-oksida. in Универзитет у Београду. 2021;.
https://hdl.handle.net/21.15107/rcub_nardus_19090 .

Rašljić, Milena, "Mikrokanali u staklu i polidimetilsiloksanu kao otvoreni reaktori za sintezu nanočestica titan(IV)-oksida" in Универзитет у Београду (2021),
https://hdl.handle.net/21.15107/rcub_nardus_19090 .

TY  - CONF
AU  - Cvetanović Zobenica, Katarina
AU  - Tadić, Nenad
AU  - Lačnjevac, Uroš
AU  - Milinković, Evgenija
AU  - Rašljić Rafajilović, Milena
AU  - Smiljanić, Milče M.
AU  - Vasiljević-Radović, Dana
AU  - Stanisavljev, Dragomir
PY  - 2020
UR  - https://www.etran.rs/2020/IcETRAN/About_Conference/
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4001
AB  - Dye Sensitized Solar cells (DSSC) are very attractive due to their low cost fabricating methods and used materials. One of the most important parts of the cells is the photoanode. Many semiconducting materials are used for this purpose, but most common one is titanium dioxide (TiO2). Optimal sintering temperature of anode plays important role in performance of TiO2 layer in DSSC, since it provides good electrical contact between particles, which consequently leads to better electron transfer through the cell, but still restricts unfavorable phase transformation. In this paper two identical cells with natural pigment hypericin as sensitizer were assembled with anodes sintered on two different temperatures (500 °C and 600 °C), so their performance parameters could be compared. The ratios between the maximal power densities (Pmax) and solar to electrical energy conversion efficiencies (η) for the two measured cells are 5 times in favor for the cell sintered at 600 °C, which shows the importance of temperature treatment of TiO2 electrodes for better performance of solar cells.
PB  - Belgrade : ETRAN Society
C3  - Proccedings - 7th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2020
T1  - Influence of sintering temperature on the performance of titanium dioxide anode in Dye Sensitized Solar Cells with natural pigment hypericin
UR  - https://hdl.handle.net/21.15107/rcub_cer_4001
ER  - 

@conference{
author = "Cvetanović Zobenica, Katarina and Tadić, Nenad and Lačnjevac, Uroš and Milinković, Evgenija and Rašljić Rafajilović, Milena and Smiljanić, Milče M. and Vasiljević-Radović, Dana and Stanisavljev, Dragomir",
year = "2020",
abstract = "Dye Sensitized Solar cells (DSSC) are very attractive due to their low cost fabricating methods and used materials. One of the most important parts of the cells is the photoanode. Many semiconducting materials are used for this purpose, but most common one is titanium dioxide (TiO2). Optimal sintering temperature of anode plays important role in performance of TiO2 layer in DSSC, since it provides good electrical contact between particles, which consequently leads to better electron transfer through the cell, but still restricts unfavorable phase transformation. In this paper two identical cells with natural pigment hypericin as sensitizer were assembled with anodes sintered on two different temperatures (500 °C and 600 °C), so their performance parameters could be compared. The ratios between the maximal power densities (Pmax) and solar to electrical energy conversion efficiencies (η) for the two measured cells are 5 times in favor for the cell sintered at 600 °C, which shows the importance of temperature treatment of TiO2 electrodes for better performance of solar cells.",
publisher = "Belgrade : ETRAN Society",
journal = "Proccedings - 7th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2020",
title = "Influence of sintering temperature on the performance of titanium dioxide anode in Dye Sensitized Solar Cells with natural pigment hypericin",
url = "https://hdl.handle.net/21.15107/rcub_cer_4001"
}

Cvetanović Zobenica, K., Tadić, N., Lačnjevac, U., Milinković, E., Rašljić Rafajilović, M., Smiljanić, M. M., Vasiljević-Radović, D.,& Stanisavljev, D.. (2020). Influence of sintering temperature on the performance of titanium dioxide anode in Dye Sensitized Solar Cells with natural pigment hypericin. in Proccedings - 7th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2020
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_cer_4001

Cvetanović Zobenica K, Tadić N, Lačnjevac U, Milinković E, Rašljić Rafajilović M, Smiljanić MM, Vasiljević-Radović D, Stanisavljev D. Influence of sintering temperature on the performance of titanium dioxide anode in Dye Sensitized Solar Cells with natural pigment hypericin. in Proccedings - 7th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2020. 2020;.
https://hdl.handle.net/21.15107/rcub_cer_4001 .

Cvetanović Zobenica, Katarina, Tadić, Nenad, Lačnjevac, Uroš, Milinković, Evgenija, Rašljić Rafajilović, Milena, Smiljanić, Milče M., Vasiljević-Radović, Dana, Stanisavljev, Dragomir, "Influence of sintering temperature on the performance of titanium dioxide anode in Dye Sensitized Solar Cells with natural pigment hypericin" in Proccedings - 7th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2020 (2020),
https://hdl.handle.net/21.15107/rcub_cer_4001 .

TY  - JOUR
AU  - Smiljanić, Milče M.
AU  - Lazić, Žarko
AU  - Rašljić Rafajilović, Milena
AU  - Cvetanović Zobenica, Katarina
AU  - Milinković, Evgenija
AU  - Filipović, Ana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4002
AB  - In this study, Y-bifurcated microchannels fabricated from a {100} silicon in 25 wt% tetramethylammonium hydroxide water solution at the temperature of 80 °C have been presented and analysed. We studied the etching of acute angles with sides along the <n10> crystallographic directions in the masking layer where 1 < n < 8. We considered symmetrical acute corners in the masking layer with respect to the <100> crystallographic directions. The angles between the appropriate <n10> and <100> crystallographic directions were smaller than 45°. Moreover, we observed asymmetrical acute corners formed by the <n10> and <m10> crystallographic directions, where m ≠ n. We found that the obtained convex corners were not distorted during etching. Consequently, it is not necessary to apply convex corner compensation. These fabricated undistorted convex corners represent the angles of the bifurcations. The sidewalls of the microchannels are defined by etched planes of the {n11} and {100} families. Analytical relations were derived for the widths of the microchannels. The results enable simple and cost-effective fabrication of various complex silicon microfluidic platforms.
PB  - IOP Publishing
T2  - Journal of Micromechanics and Microengineering
T1  - Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution
VL  - 31
SP  - 017001
DO  - 10.1088/1361-6439/abcb67
ER  - 

@article{
author = "Smiljanić, Milče M. and Lazić, Žarko and Rašljić Rafajilović, Milena and Cvetanović Zobenica, Katarina and Milinković, Evgenija and Filipović, Ana",
year = "2020",
abstract = "In this study, Y-bifurcated microchannels fabricated from a {100} silicon in 25 wt% tetramethylammonium hydroxide water solution at the temperature of 80 °C have been presented and analysed. We studied the etching of acute angles with sides along the <n10> crystallographic directions in the masking layer where 1 < n < 8. We considered symmetrical acute corners in the masking layer with respect to the <100> crystallographic directions. The angles between the appropriate <n10> and <100> crystallographic directions were smaller than 45°. Moreover, we observed asymmetrical acute corners formed by the <n10> and <m10> crystallographic directions, where m ≠ n. We found that the obtained convex corners were not distorted during etching. Consequently, it is not necessary to apply convex corner compensation. These fabricated undistorted convex corners represent the angles of the bifurcations. The sidewalls of the microchannels are defined by etched planes of the {n11} and {100} families. Analytical relations were derived for the widths of the microchannels. The results enable simple and cost-effective fabrication of various complex silicon microfluidic platforms.",
publisher = "IOP Publishing",
journal = "Journal of Micromechanics and Microengineering",
title = "Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution",
volume = "31",
pages = "017001",
doi = "10.1088/1361-6439/abcb67"
}

Smiljanić, M. M., Lazić, Ž., Rašljić Rafajilović, M., Cvetanović Zobenica, K., Milinković, E.,& Filipović, A.. (2020). Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution. in Journal of Micromechanics and Microengineering
IOP Publishing., 31, 017001.
https://doi.org/10.1088/1361-6439/abcb67

Smiljanić MM, Lazić Ž, Rašljić Rafajilović M, Cvetanović Zobenica K, Milinković E, Filipović A. Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution. in Journal of Micromechanics and Microengineering. 2020;31:017001.
doi:10.1088/1361-6439/abcb67 .

Smiljanić, Milče M., Lazić, Žarko, Rašljić Rafajilović, Milena, Cvetanović Zobenica, Katarina, Milinković, Evgenija, Filipović, Ana, "Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution" in Journal of Micromechanics and Microengineering, 31 (2020):017001,
https://doi.org/10.1088/1361-6439/abcb67 . .

TY  - JOUR
AU  - Smiljanić, Milče M.
AU  - Lazić, Žarko
AU  - Rašljić Rafajilović, Milena
AU  - Cvetanović Zobenica, Katarina
AU  - Milinković, Evgenija
AU  - Filipović, Ana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4003
AB  - In this study, Y-bifurcated microchannels fabricated from a {100} silicon in 25 wt% tetramethylammonium hydroxide water solution at the temperature of 80 °C have been presented and analysed. We studied the etching of acute angles with sides along the <n10> crystallographic directions in the masking layer where 1 < n < 8. We considered symmetrical acute corners in the masking layer with respect to the <100> crystallographic directions. The angles between the appropriate <n10> and <100> crystallographic directions were smaller than 45°. Moreover, we observed asymmetrical acute corners formed by the <n10> and <m10> crystallographic directions, where m ≠ n. We found that the obtained convex corners were not distorted during etching. Consequently, it is not necessary to apply convex corner compensation. These fabricated undistorted convex corners represent the angles of the bifurcations. The sidewalls of the microchannels are defined by etched planes of the {n11} and {100} families. Analytical relations were derived for the widths of the microchannels. The results enable simple and cost-effective fabrication of various complex silicon microfluidic platforms.
PB  - IOP Publishing
T2  - Journal of Micromechanics and Microengineering
T1  - Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution
VL  - 31
SP  - 017001
DO  - 10.1088/1361-6439/abcb67
ER  - 

@article{
author = "Smiljanić, Milče M. and Lazić, Žarko and Rašljić Rafajilović, Milena and Cvetanović Zobenica, Katarina and Milinković, Evgenija and Filipović, Ana",
year = "2020",
abstract = "In this study, Y-bifurcated microchannels fabricated from a {100} silicon in 25 wt% tetramethylammonium hydroxide water solution at the temperature of 80 °C have been presented and analysed. We studied the etching of acute angles with sides along the <n10> crystallographic directions in the masking layer where 1 < n < 8. We considered symmetrical acute corners in the masking layer with respect to the <100> crystallographic directions. The angles between the appropriate <n10> and <100> crystallographic directions were smaller than 45°. Moreover, we observed asymmetrical acute corners formed by the <n10> and <m10> crystallographic directions, where m ≠ n. We found that the obtained convex corners were not distorted during etching. Consequently, it is not necessary to apply convex corner compensation. These fabricated undistorted convex corners represent the angles of the bifurcations. The sidewalls of the microchannels are defined by etched planes of the {n11} and {100} families. Analytical relations were derived for the widths of the microchannels. The results enable simple and cost-effective fabrication of various complex silicon microfluidic platforms.",
publisher = "IOP Publishing",
journal = "Journal of Micromechanics and Microengineering",
title = "Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution",
volume = "31",
pages = "017001",
doi = "10.1088/1361-6439/abcb67"
}

Smiljanić, M. M., Lazić, Ž., Rašljić Rafajilović, M., Cvetanović Zobenica, K., Milinković, E.,& Filipović, A.. (2020). Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution. in Journal of Micromechanics and Microengineering
IOP Publishing., 31, 017001.
https://doi.org/10.1088/1361-6439/abcb67

Smiljanić MM, Lazić Ž, Rašljić Rafajilović M, Cvetanović Zobenica K, Milinković E, Filipović A. Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution. in Journal of Micromechanics and Microengineering. 2020;31:017001.
doi:10.1088/1361-6439/abcb67 .

Smiljanić, Milče M., Lazić, Žarko, Rašljić Rafajilović, Milena, Cvetanović Zobenica, Katarina, Milinković, Evgenija, Filipović, Ana, "Silicon Y-bifurcated microchannels etched in 25 wt% TMAH water solution" in Journal of Micromechanics and Microengineering, 31 (2020):017001,
https://doi.org/10.1088/1361-6439/abcb67 . .