Jeremić, Sanja

Link to this page

Authority KeyName Variants
orcid::0000-0002-6661-385X
  • Jeremić, Sanja (11)
Projects
Microbial diversity study and characterization of beneficial environmental microorganisms Synthesis and characterization of novel functional polymers and polymeric nanocomposites
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200042 (University of Belgrade, Institute of Molecular Genetics and Genetic Engineering)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy) AdCatFC - Advanced Catalysts for Low Temperature Fuel Cells: From Model System to Sustainable Catalysts
Horizon 2020 research and innovation programme under grant agreement No 870292 (BioICEP) The synthesis of aminoquinoline-based antimalarials and botulinum neurotoxin A inhibitors
Production, purification and characterization of enzymes and small molecules and their application as soluble or immobilized in food biotechnology, biofuels production and environmental protection Simultaneous Bioremediation and Soilification of Degraded Areas to Preserve Natural Resources of Biologically Active Substances, and Development and Production of Biomaterials and Dietetic Products
BioECOLogics - Value-added biologics through eco-sustainable routes Project LA/P/0140/202019 of the Associate Laboratory Institute for Health and Bioeconomy—i4HB
The national funds from FCT—Fundação para a Ciência e a Tecnologia, in the scope of the project UIDP/04378/2020 and UIDB/04378/2020 of the Research Unit on Applied Molecular Biosciences—UCIBIO

Author's Bibliography

Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin

Ponjavić, Marijana; Malagurski, Ivana; Lazić, Jelena; Jeremić, Sanja; Pavlović, Vladimir; Prlainović, Nevena; Maksimović, Vesna; Ćosović, Vladan; Atanase, Leonard Ionut

(Switzerland : Multidisciplinary Digital Publishing Institute (MDPI), 2023)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Malagurski, Ivana
AU  - Lazić, Jelena
AU  - Jeremić, Sanja
AU  - Pavlović, Vladimir
AU  - Prlainović, Nevena
AU  - Maksimović, Vesna
AU  - Ćosović, Vladan
AU  - Atanase, Leonard Ionut
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5690
AB  - The quest for sustainable biomaterials with excellent biocompatibility and tailorable
properties has put polyhydroxyalkanoates (PHAs) into the research spotlight. However, high production
costs and the lack of bioactivity limit their market penetration. To address this, poly(3-
hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was combined with a bacterial pigment with strong
anticancer activity, prodigiosin (PG), to obtain functionally enhanced PHBV-based biomaterials. The
samples were produced in the form of films 115.6–118.8  m in thickness using the solvent casting
method. The effects of PG incorporation on the physical properties (morphology, biopolymer crystallinity
and thermal stability) and functionality of the obtained biomaterials were investigated. PG
has acted as a nucleating agent, in turn affecting the degree of crystallinity, thermal stability and
morphology of the films. All samples with PG had a more organized internal structure and higher
melting and degradation temperatures. The calculated degree of crystallinity of the PHBV copolymer
was 53%, while the PG1, PG3 and PG3 films had values of 64.0%, 63.9% and 69.2%, respectively.
Cytotoxicity studies have shown the excellent anticancer activity of films against HCT116 (colon
cancer) cells, thus advancing PHBV biomedical application potential.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - International Journal of Molecular Sciences
T1  - Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin
VL  - 24
SP  - 1906
DO  - 10.3390/ijms24031906
ER  - 
@article{
author = "Ponjavić, Marijana and Malagurski, Ivana and Lazić, Jelena and Jeremić, Sanja and Pavlović, Vladimir and Prlainović, Nevena and Maksimović, Vesna and Ćosović, Vladan and Atanase, Leonard Ionut",
year = "2023",
abstract = "The quest for sustainable biomaterials with excellent biocompatibility and tailorable
properties has put polyhydroxyalkanoates (PHAs) into the research spotlight. However, high production
costs and the lack of bioactivity limit their market penetration. To address this, poly(3-
hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was combined with a bacterial pigment with strong
anticancer activity, prodigiosin (PG), to obtain functionally enhanced PHBV-based biomaterials. The
samples were produced in the form of films 115.6–118.8  m in thickness using the solvent casting
method. The effects of PG incorporation on the physical properties (morphology, biopolymer crystallinity
and thermal stability) and functionality of the obtained biomaterials were investigated. PG
has acted as a nucleating agent, in turn affecting the degree of crystallinity, thermal stability and
morphology of the films. All samples with PG had a more organized internal structure and higher
melting and degradation temperatures. The calculated degree of crystallinity of the PHBV copolymer
was 53%, while the PG1, PG3 and PG3 films had values of 64.0%, 63.9% and 69.2%, respectively.
Cytotoxicity studies have shown the excellent anticancer activity of films against HCT116 (colon
cancer) cells, thus advancing PHBV biomedical application potential.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "International Journal of Molecular Sciences",
title = "Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin",
volume = "24",
pages = "1906",
doi = "10.3390/ijms24031906"
}
Ponjavić, M., Malagurski, I., Lazić, J., Jeremić, S., Pavlović, V., Prlainović, N., Maksimović, V., Ćosović, V.,& Atanase, L. I.. (2023). Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin. in International Journal of Molecular Sciences
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 24, 1906.
https://doi.org/10.3390/ijms24031906
Ponjavić M, Malagurski I, Lazić J, Jeremić S, Pavlović V, Prlainović N, Maksimović V, Ćosović V, Atanase LI. Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin. in International Journal of Molecular Sciences. 2023;24:1906.
doi:10.3390/ijms24031906 .
Ponjavić, Marijana, Malagurski, Ivana, Lazić, Jelena, Jeremić, Sanja, Pavlović, Vladimir, Prlainović, Nevena, Maksimović, Vesna, Ćosović, Vladan, Atanase, Leonard Ionut, "Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin" in International Journal of Molecular Sciences, 24 (2023):1906,
https://doi.org/10.3390/ijms24031906 . .
2
10

Star-shaped poly(ε-caprolactones) with well-defined architecture as potential drug carriers

Ponjavić, Marijana; Nikolić, Marija S.; Jevtić, Sanja; Jeremić, Sanja; Đokić, Lidija; Đonlagić, Jasna

(Serbia : Serbian Chemical Society, 2022)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija S.
AU  - Jevtić, Sanja
AU  - Jeremić, Sanja
AU  - Đokić, Lidija
AU  - Đonlagić, Jasna
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5392
AB  - The present study reports the potential application of star-shaped poly(ε-caprolactones) with different number of arms as new drug delivery matrix. Linear and star-shaped PCL ibuprofen loaded microspheres were prepared using oil-in-water (o/w) solvent evaporation technique and characterized with FTIR, DSC, XRD and SEM analysis. High yield, encapsulation efficiency and drug loadings were obtained for all microspheres. FTIR analysis revealed the existence of interactions between polymer matrix and drug, while the DSC analysis suggested that drug was encapsulated in an amorphous form. SEM analysis confirmed that regular, spherical in shape star-shaped microspheres, with diameter between 80 and 90 μm, were obtained, while quite larger microspheres, 110 μm, were prepared from linear PCL. The advantage of using star-shaped PCL microspheres instead of linear PCL was seen from drug release profiles which demonstrated higher amount of drug released from star-shaped polymer matrix as a consequence of their branched, flexible structure. Microspheres prepared from the polymers with the most branched structure showed the highest amount of the released drug after 24 h. Finally, cytotoxicity tests, performed using normal human fibroblasts (MRC5), indicated the absence of cytotoxicity at lower concentrations of microspheres proving the great potential of star-shaped PCL systems in comparison to linear ones.
AB  - У оквиру ове студије је приказана потенцијална примена разгранатих поли(ε-кап-
ролактона) са различитим бројем грана као новог полимерног матрикса за уношење
лекова у организам. Микросфере линеарног и разгранатих PCL са инкапсулираним ибу-
профеном су припремљене применом технике отпаравања лако испарљивог растварача
из емулзије “уље у води” (oil-in-water, o/w) и карактерисане помоћу FTIR, DSC, XRD и
SEM анализе. За све микросфере су добијени висок принос, висока ефикасност инкaпсу-
лације и висок садржај лека. FTIR анализом је потврђено постојање интеракција између
полимерног матрикса и лека, док је DSC анализа указала да је лек инкапсулиран у
аморфном облику. SEM анализа је потврдила да су добијене микросфере разгранатих
PCL правилног, сферичног облика, са пречником између 80 до 90 μm, док су знатно веће
микросфере, 110 μm, припремљене од линеарног PCL. Предност употребе микросфера
разгранатих PCL уместо линеарног PCL се види из профила отпуштања лека, који су
показали већу количину отпуштеног лека из микросфера разгранатог полимернe мат-
рице као последица њихове разгранате, флексибилне структуре. Микросфере припре-
мљене од полимера са најразгранитијом структуром су показале највећу количину
отпуштеног лека након 24 h. Тестови цитотоксичности, изведени коришћењем ћелија
нормалних, хуманих фибробласта (MRC5), показали су одсуство цитотоксичности при
нижим концентрацијама микросфера доказујући велики потенцијал разгранатих PCL
система у поређењу са линеарним.
PB  - Serbia : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Star-shaped poly(ε-caprolactones) with well-defined architecture as potential drug carriers
T1  - Разгранати поли (ε-капролактони) са добро одређеном архитектуром као потенцијални носачи лекова
VL  - 87
IS  - 9
SP  - 1075
EP  - 1090
DO  - 10.2298/JSC220202032P
ER  - 
@article{
author = "Ponjavić, Marijana and Nikolić, Marija S. and Jevtić, Sanja and Jeremić, Sanja and Đokić, Lidija and Đonlagić, Jasna",
year = "2022",
abstract = "The present study reports the potential application of star-shaped poly(ε-caprolactones) with different number of arms as new drug delivery matrix. Linear and star-shaped PCL ibuprofen loaded microspheres were prepared using oil-in-water (o/w) solvent evaporation technique and characterized with FTIR, DSC, XRD and SEM analysis. High yield, encapsulation efficiency and drug loadings were obtained for all microspheres. FTIR analysis revealed the existence of interactions between polymer matrix and drug, while the DSC analysis suggested that drug was encapsulated in an amorphous form. SEM analysis confirmed that regular, spherical in shape star-shaped microspheres, with diameter between 80 and 90 μm, were obtained, while quite larger microspheres, 110 μm, were prepared from linear PCL. The advantage of using star-shaped PCL microspheres instead of linear PCL was seen from drug release profiles which demonstrated higher amount of drug released from star-shaped polymer matrix as a consequence of their branched, flexible structure. Microspheres prepared from the polymers with the most branched structure showed the highest amount of the released drug after 24 h. Finally, cytotoxicity tests, performed using normal human fibroblasts (MRC5), indicated the absence of cytotoxicity at lower concentrations of microspheres proving the great potential of star-shaped PCL systems in comparison to linear ones., У оквиру ове студије је приказана потенцијална примена разгранатих поли(ε-кап-
ролактона) са различитим бројем грана као новог полимерног матрикса за уношење
лекова у организам. Микросфере линеарног и разгранатих PCL са инкапсулираним ибу-
профеном су припремљене применом технике отпаравања лако испарљивог растварача
из емулзије “уље у води” (oil-in-water, o/w) и карактерисане помоћу FTIR, DSC, XRD и
SEM анализе. За све микросфере су добијени висок принос, висока ефикасност инкaпсу-
лације и висок садржај лека. FTIR анализом је потврђено постојање интеракција између
полимерног матрикса и лека, док је DSC анализа указала да је лек инкапсулиран у
аморфном облику. SEM анализа је потврдила да су добијене микросфере разгранатих
PCL правилног, сферичног облика, са пречником између 80 до 90 μm, док су знатно веће
микросфере, 110 μm, припремљене од линеарног PCL. Предност употребе микросфера
разгранатих PCL уместо линеарног PCL се види из профила отпуштања лека, који су
показали већу количину отпуштеног лека из микросфера разгранатог полимернe мат-
рице као последица њихове разгранате, флексибилне структуре. Микросфере припре-
мљене од полимера са најразгранитијом структуром су показале највећу количину
отпуштеног лека након 24 h. Тестови цитотоксичности, изведени коришћењем ћелија
нормалних, хуманих фибробласта (MRC5), показали су одсуство цитотоксичности при
нижим концентрацијама микросфера доказујући велики потенцијал разгранатих PCL
система у поређењу са линеарним.",
publisher = "Serbia : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Star-shaped poly(ε-caprolactones) with well-defined architecture as potential drug carriers, Разгранати поли (ε-капролактони) са добро одређеном архитектуром као потенцијални носачи лекова",
volume = "87",
number = "9",
pages = "1075-1090",
doi = "10.2298/JSC220202032P"
}
Ponjavić, M., Nikolić, M. S., Jevtić, S., Jeremić, S., Đokić, L.,& Đonlagić, J.. (2022). Star-shaped poly(ε-caprolactones) with well-defined architecture as potential drug carriers. in Journal of the Serbian Chemical Society
Serbia : Serbian Chemical Society., 87(9), 1075-1090.
https://doi.org/10.2298/JSC220202032P
Ponjavić M, Nikolić MS, Jevtić S, Jeremić S, Đokić L, Đonlagić J. Star-shaped poly(ε-caprolactones) with well-defined architecture as potential drug carriers. in Journal of the Serbian Chemical Society. 2022;87(9):1075-1090.
doi:10.2298/JSC220202032P .
Ponjavić, Marijana, Nikolić, Marija S., Jevtić, Sanja, Jeremić, Sanja, Đokić, Lidija, Đonlagić, Jasna, "Star-shaped poly(ε-caprolactones) with well-defined architecture as potential drug carriers" in Journal of the Serbian Chemical Society, 87, no. 9 (2022):1075-1090,
https://doi.org/10.2298/JSC220202032P . .

Bacterial nanocellulose as green support of platinum nanoparticles for effective methanol oxidation

Ponjavić, Marijana; Stevanović, Sanja; Nikodinović-Runić, Jasmina; Jeremić, Sanja; Ćosović, Vladan; Maksimović, Vesna

(Elsevier BV, 2022)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Stevanović, Sanja
AU  - Nikodinović-Runić, Jasmina
AU  - Jeremić, Sanja
AU  - Ćosović, Vladan
AU  - Maksimović, Vesna
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5573
AB  - Bacterial nanocellulose, BNC, has emerged as a new class of nanomaterials recognized as renewable, biodegradable, biocompatible and material for versatile applications. BNC also proved as a perfect support matrix for metallic nanoparticle synthesis and appeared as suitable alternative for widely used carbon based materials. Following the idea to replace commonly used carbon based materials for platinum supports with the green and sustainable one, BNC appeared as an excellent candidate. Herein, microwave assisted synthesis has been reported for the first time for platinum nanoparticles supported on BNC as green material. Bacterial nanocelullose-platinum catalyst, Pt/BNC, was investigated by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), atomic force microscopy (AFM), X-ray diffractometry (XRD) and transmission-electron microscopy (TEM) analysis. The obtained results confirmed successful synthesis of new Pt-based catalyst. It was found that Pt/BNC catalyst has high electrocatalytic performance in methanol oxidation reaction. Green/sustainable catalytic system is highly desirable and provided by the elegant microwave assisted synthesis of Pt/BNC will pave the way for a larger scale application and expedite the market penetration of such fuel cells.
PB  - Elsevier BV
T2  - International Journal of Biological Macromolecules
T1  - Bacterial nanocellulose as green support of platinum nanoparticles for effective methanol oxidation
VL  - 223
SP  - 1474
EP  - 1484
DO  - 10.1016/j.ijbiomac.2022.10.278
ER  - 
@article{
author = "Ponjavić, Marijana and Stevanović, Sanja and Nikodinović-Runić, Jasmina and Jeremić, Sanja and Ćosović, Vladan and Maksimović, Vesna",
year = "2022",
abstract = "Bacterial nanocellulose, BNC, has emerged as a new class of nanomaterials recognized as renewable, biodegradable, biocompatible and material for versatile applications. BNC also proved as a perfect support matrix for metallic nanoparticle synthesis and appeared as suitable alternative for widely used carbon based materials. Following the idea to replace commonly used carbon based materials for platinum supports with the green and sustainable one, BNC appeared as an excellent candidate. Herein, microwave assisted synthesis has been reported for the first time for platinum nanoparticles supported on BNC as green material. Bacterial nanocelullose-platinum catalyst, Pt/BNC, was investigated by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), atomic force microscopy (AFM), X-ray diffractometry (XRD) and transmission-electron microscopy (TEM) analysis. The obtained results confirmed successful synthesis of new Pt-based catalyst. It was found that Pt/BNC catalyst has high electrocatalytic performance in methanol oxidation reaction. Green/sustainable catalytic system is highly desirable and provided by the elegant microwave assisted synthesis of Pt/BNC will pave the way for a larger scale application and expedite the market penetration of such fuel cells.",
publisher = "Elsevier BV",
journal = "International Journal of Biological Macromolecules",
title = "Bacterial nanocellulose as green support of platinum nanoparticles for effective methanol oxidation",
volume = "223",
pages = "1474-1484",
doi = "10.1016/j.ijbiomac.2022.10.278"
}
Ponjavić, M., Stevanović, S., Nikodinović-Runić, J., Jeremić, S., Ćosović, V.,& Maksimović, V.. (2022). Bacterial nanocellulose as green support of platinum nanoparticles for effective methanol oxidation. in International Journal of Biological Macromolecules
Elsevier BV., 223, 1474-1484.
https://doi.org/10.1016/j.ijbiomac.2022.10.278
Ponjavić M, Stevanović S, Nikodinović-Runić J, Jeremić S, Ćosović V, Maksimović V. Bacterial nanocellulose as green support of platinum nanoparticles for effective methanol oxidation. in International Journal of Biological Macromolecules. 2022;223:1474-1484.
doi:10.1016/j.ijbiomac.2022.10.278 .
Ponjavić, Marijana, Stevanović, Sanja, Nikodinović-Runić, Jasmina, Jeremić, Sanja, Ćosović, Vladan, Maksimović, Vesna, "Bacterial nanocellulose as green support of platinum nanoparticles for effective methanol oxidation" in International Journal of Biological Macromolecules, 223 (2022):1474-1484,
https://doi.org/10.1016/j.ijbiomac.2022.10.278 . .
3
2
3

Electrochemical potential of poly(viniyl acohol) modified bacterial nanocellulose as platinum nanoparticles support

Ponjavić, Marijana; Stevanović, Sanja; Jeremić, Sanja; Nikodinović-Runić, Jasmina; Ćosović, Vladan; Maksimović, Vesna

(Banja Luka : University in Banjaluka, Faculty of Technology, 2022)

TY  - CONF
AU  - Ponjavić, Marijana
AU  - Stevanović, Sanja
AU  - Jeremić, Sanja
AU  - Nikodinović-Runić, Jasmina
AU  - Ćosović, Vladan
AU  - Maksimović, Vesna
PY  - 2022
UR  - https://savjetovanje.tf.unibl.org/home/digital-library/book-of-abstracts/
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5939
AB  - The main objective of this work was to prepare new platinum supported catalyst on BNC/PVA composite as nanoparticles carrier, designed for electrocatalytic applications. For that purpose, BNC/Pt suspension was mixed with 1 wt% PVA solution and BNC/PVA/Pt catalyst in the form of film was successfully synthesized. The structure and thermal properties of catalyst were characterized by ATR-FTIR and TG analysis, respectively, while its crystallinity was investigated 
by XRD analysis. Electrocatalytic potential of BNC/PVA/Pt catalyst was tested in methanol 
oxidation reaction. Remarkable catalytic activity of new Pt based catalyst was confirmed. The 
obtained results for catalyst activity was comparable to those obtained for preferentially used 
carbon based Pt supports pointing that BNC based composited can be considered as great 
substitution of carbon based materials with the green one.
PB  - Banja Luka : University in Banjaluka, Faculty of Technology
C3  - Book of abstracts – XIV International scientific conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
T1  - Electrochemical potential of poly(viniyl acohol) modified bacterial nanocellulose as platinum nanoparticles support
SP  - 33
EP  - 33
UR  - https://hdl.handle.net/21.15107/rcub_cer_5939
ER  - 
@conference{
author = "Ponjavić, Marijana and Stevanović, Sanja and Jeremić, Sanja and Nikodinović-Runić, Jasmina and Ćosović, Vladan and Maksimović, Vesna",
year = "2022",
abstract = "The main objective of this work was to prepare new platinum supported catalyst on BNC/PVA composite as nanoparticles carrier, designed for electrocatalytic applications. For that purpose, BNC/Pt suspension was mixed with 1 wt% PVA solution and BNC/PVA/Pt catalyst in the form of film was successfully synthesized. The structure and thermal properties of catalyst were characterized by ATR-FTIR and TG analysis, respectively, while its crystallinity was investigated 
by XRD analysis. Electrocatalytic potential of BNC/PVA/Pt catalyst was tested in methanol 
oxidation reaction. Remarkable catalytic activity of new Pt based catalyst was confirmed. The 
obtained results for catalyst activity was comparable to those obtained for preferentially used 
carbon based Pt supports pointing that BNC based composited can be considered as great 
substitution of carbon based materials with the green one.",
publisher = "Banja Luka : University in Banjaluka, Faculty of Technology",
journal = "Book of abstracts – XIV International scientific conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka",
title = "Electrochemical potential of poly(viniyl acohol) modified bacterial nanocellulose as platinum nanoparticles support",
pages = "33-33",
url = "https://hdl.handle.net/21.15107/rcub_cer_5939"
}
Ponjavić, M., Stevanović, S., Jeremić, S., Nikodinović-Runić, J., Ćosović, V.,& Maksimović, V.. (2022). Electrochemical potential of poly(viniyl acohol) modified bacterial nanocellulose as platinum nanoparticles support. in Book of abstracts – XIV International scientific conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
Banja Luka : University in Banjaluka, Faculty of Technology., 33-33.
https://hdl.handle.net/21.15107/rcub_cer_5939
Ponjavić M, Stevanović S, Jeremić S, Nikodinović-Runić J, Ćosović V, Maksimović V. Electrochemical potential of poly(viniyl acohol) modified bacterial nanocellulose as platinum nanoparticles support. in Book of abstracts – XIV International scientific conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka. 2022;:33-33.
https://hdl.handle.net/21.15107/rcub_cer_5939 .
Ponjavić, Marijana, Stevanović, Sanja, Jeremić, Sanja, Nikodinović-Runić, Jasmina, Ćosović, Vladan, Maksimović, Vesna, "Electrochemical potential of poly(viniyl acohol) modified bacterial nanocellulose as platinum nanoparticles support" in Book of abstracts – XIV International scientific conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka (2022):33-33,
https://hdl.handle.net/21.15107/rcub_cer_5939 .

Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines

Simić, Stefan; Jeremić, Sanja; Đokić, Lidija; Božić, Nataša; Vujčić, Zoran; Lončar, Nikola; Senthamaraikannan, Ramsankar; Babu, Ramesh Padamati; Opsenica, Igor; Nikodinović-Runić, Jasmina

(Elsevier, 2020)

TY  - JOUR
AU  - Simić, Stefan
AU  - Jeremić, Sanja
AU  - Đokić, Lidija
AU  - Božić, Nataša
AU  - Vujčić, Zoran
AU  - Lončar, Nikola
AU  - Senthamaraikannan, Ramsankar
AU  - Babu, Ramesh Padamati
AU  - Opsenica, Igor
AU  - Nikodinović-Runić, Jasmina
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3052
AB  - Biocatalytic oxidations mediated by laccases are gaining importance due to their versatility and beneficial environmental effects. In this study, the oxidation of 1,4-dihydropyridines has been performed using three different types of bacterial laccase-based catalysts: purified laccase from Bacillus licheniformis ATCC 9945a (BliLacc), Escherichia coli whole cells expressing this laccase, and bacterial nanocellulose (BNC) supported BliLacc catalysts. The catalysts based on bacterial laccase were compared to the commercially available Trametes versicolor laccase (TvLacc). The oxidation product of 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate was obtained within 7–24 h with good yields (70–99%) with all three biocatalysts. The substrate scope was examined with five additional 1,4-dihydropyridines, one of which was oxidized in high yield. Whole-cell biocatalyst was stable when stored for up to 1-month at 4 °C. In addition, evidence has been provided that multicopper oxidase CueO from the E. coli expression host contributed to the oxidation efficiency of the whole-cell biocatalyst. The immobilized whole-cell biocatalyst showed satisfactory activity and retained 37% of its original activity after three biotransformation cycles.
PB  - Elsevier
T2  - Enzyme and Microbial Technology
T1  - Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines
VL  - 132
SP  - 109411
DO  - 10.1016/j.enzmictec.2019.109411
ER  - 
@article{
author = "Simić, Stefan and Jeremić, Sanja and Đokić, Lidija and Božić, Nataša and Vujčić, Zoran and Lončar, Nikola and Senthamaraikannan, Ramsankar and Babu, Ramesh Padamati and Opsenica, Igor and Nikodinović-Runić, Jasmina",
year = "2020",
abstract = "Biocatalytic oxidations mediated by laccases are gaining importance due to their versatility and beneficial environmental effects. In this study, the oxidation of 1,4-dihydropyridines has been performed using three different types of bacterial laccase-based catalysts: purified laccase from Bacillus licheniformis ATCC 9945a (BliLacc), Escherichia coli whole cells expressing this laccase, and bacterial nanocellulose (BNC) supported BliLacc catalysts. The catalysts based on bacterial laccase were compared to the commercially available Trametes versicolor laccase (TvLacc). The oxidation product of 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate was obtained within 7–24 h with good yields (70–99%) with all three biocatalysts. The substrate scope was examined with five additional 1,4-dihydropyridines, one of which was oxidized in high yield. Whole-cell biocatalyst was stable when stored for up to 1-month at 4 °C. In addition, evidence has been provided that multicopper oxidase CueO from the E. coli expression host contributed to the oxidation efficiency of the whole-cell biocatalyst. The immobilized whole-cell biocatalyst showed satisfactory activity and retained 37% of its original activity after three biotransformation cycles.",
publisher = "Elsevier",
journal = "Enzyme and Microbial Technology",
title = "Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines",
volume = "132",
pages = "109411",
doi = "10.1016/j.enzmictec.2019.109411"
}
Simić, S., Jeremić, S., Đokić, L., Božić, N., Vujčić, Z., Lončar, N., Senthamaraikannan, R., Babu, R. P., Opsenica, I.,& Nikodinović-Runić, J.. (2020). Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines. in Enzyme and Microbial Technology
Elsevier., 132, 109411.
https://doi.org/10.1016/j.enzmictec.2019.109411
Simić S, Jeremić S, Đokić L, Božić N, Vujčić Z, Lončar N, Senthamaraikannan R, Babu RP, Opsenica I, Nikodinović-Runić J. Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines. in Enzyme and Microbial Technology. 2020;132:109411.
doi:10.1016/j.enzmictec.2019.109411 .
Simić, Stefan, Jeremić, Sanja, Đokić, Lidija, Božić, Nataša, Vujčić, Zoran, Lončar, Nikola, Senthamaraikannan, Ramsankar, Babu, Ramesh Padamati, Opsenica, Igor, Nikodinović-Runić, Jasmina, "Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines" in Enzyme and Microbial Technology, 132 (2020):109411,
https://doi.org/10.1016/j.enzmictec.2019.109411 . .
19
6
17

Hydrolytic degradation of star-shaped poly(ε-caprolactone)s with different number of arms and their cytotoxic effects

Ponjavić, Marijana; Nikolić, Marija S.; Stevanović, Sanja; Nikodinović-Runić, Jasmina; Jeremić, Sanja; Pavić, Aleksandar; Đongalić, Jasna

(SAGE Publications, 2020)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija S.
AU  - Stevanović, Sanja
AU  - Nikodinović-Runić, Jasmina
AU  - Jeremić, Sanja
AU  - Pavić, Aleksandar
AU  - Đongalić, Jasna
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4019
AB  - Star-shaped polymers of biodegradable aliphatic polyester, poly(ε-caprolactone), PCL, with different number of arms (three, four, and six) were synthesized by ring-opening polymerization initiated by multifunctional alcohols used as cores. As potential biomaterials, synthesized star-shaped poly(ε-caprolactone)s, sPCL, were thoroughly characterized in terms of their degradation under different pH conditions and in respect to their cytotoxicity. The in vitro degradation was performed in phosphate buffer (pH 7.4) and hydrochloric acid solution (pH 1.0) over 5 weeks. Degradation of sPCL films was followed by the weight loss measurements, GPC, FTIR, and AFM analysis. While the most of the samples were stable against the abiotic hydrolysis at pH 7.4 after 5 weeks of degradation, degradation was significantly accelerated in the acidic medium. Degradation rate of polymer films was affected by the polymer architecture and molecular weight. The molecular weight profiles during the degradation revealed random chain scission of the ester bonds indicating bulk degradation mechanism of hydrolysis at pH 7.4, while acidic hydrolysis proceeded through the bulk degradation associated with surface erosion, confirmed by AFM. The in vitro toxicity tests, cytotoxicity applying normal human fibroblasts (MRC5) and embryotoxicity assessment (using zebra fish model, Danio rerio), suggested those polymeric materials as suitable for biomedical application.
PB  - SAGE Publications
T2  - Journal of Bioactive and Compatible Polymers
T1  - Hydrolytic degradation of star-shaped poly(ε-caprolactone)s with different number of arms and their cytotoxic effects
VL  - 35
IS  - 6
SP  - 517
EP  - 537
DO  - 10.1177/0883911520951826
ER  - 
@article{
author = "Ponjavić, Marijana and Nikolić, Marija S. and Stevanović, Sanja and Nikodinović-Runić, Jasmina and Jeremić, Sanja and Pavić, Aleksandar and Đongalić, Jasna",
year = "2020",
abstract = "Star-shaped polymers of biodegradable aliphatic polyester, poly(ε-caprolactone), PCL, with different number of arms (three, four, and six) were synthesized by ring-opening polymerization initiated by multifunctional alcohols used as cores. As potential biomaterials, synthesized star-shaped poly(ε-caprolactone)s, sPCL, were thoroughly characterized in terms of their degradation under different pH conditions and in respect to their cytotoxicity. The in vitro degradation was performed in phosphate buffer (pH 7.4) and hydrochloric acid solution (pH 1.0) over 5 weeks. Degradation of sPCL films was followed by the weight loss measurements, GPC, FTIR, and AFM analysis. While the most of the samples were stable against the abiotic hydrolysis at pH 7.4 after 5 weeks of degradation, degradation was significantly accelerated in the acidic medium. Degradation rate of polymer films was affected by the polymer architecture and molecular weight. The molecular weight profiles during the degradation revealed random chain scission of the ester bonds indicating bulk degradation mechanism of hydrolysis at pH 7.4, while acidic hydrolysis proceeded through the bulk degradation associated with surface erosion, confirmed by AFM. The in vitro toxicity tests, cytotoxicity applying normal human fibroblasts (MRC5) and embryotoxicity assessment (using zebra fish model, Danio rerio), suggested those polymeric materials as suitable for biomedical application.",
publisher = "SAGE Publications",
journal = "Journal of Bioactive and Compatible Polymers",
title = "Hydrolytic degradation of star-shaped poly(ε-caprolactone)s with different number of arms and their cytotoxic effects",
volume = "35",
number = "6",
pages = "517-537",
doi = "10.1177/0883911520951826"
}
Ponjavić, M., Nikolić, M. S., Stevanović, S., Nikodinović-Runić, J., Jeremić, S., Pavić, A.,& Đongalić, J.. (2020). Hydrolytic degradation of star-shaped poly(ε-caprolactone)s with different number of arms and their cytotoxic effects. in Journal of Bioactive and Compatible Polymers
SAGE Publications., 35(6), 517-537.
https://doi.org/10.1177/0883911520951826
Ponjavić M, Nikolić MS, Stevanović S, Nikodinović-Runić J, Jeremić S, Pavić A, Đongalić J. Hydrolytic degradation of star-shaped poly(ε-caprolactone)s with different number of arms and their cytotoxic effects. in Journal of Bioactive and Compatible Polymers. 2020;35(6):517-537.
doi:10.1177/0883911520951826 .
Ponjavić, Marijana, Nikolić, Marija S., Stevanović, Sanja, Nikodinović-Runić, Jasmina, Jeremić, Sanja, Pavić, Aleksandar, Đongalić, Jasna, "Hydrolytic degradation of star-shaped poly(ε-caprolactone)s with different number of arms and their cytotoxic effects" in Journal of Bioactive and Compatible Polymers, 35, no. 6 (2020):517-537,
https://doi.org/10.1177/0883911520951826 . .
6
1
5

Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil

Mandić, Mina; Spasić, Jelena; Ponjavić, Marijana; Nikolić, Marija S.; Ćosović, Vladan; O'Connor, Kevin E.; Nikodinović-Runić, Jasmina; Đokić, Lidija; Jeremić, Sanja

(Elsevier, 2019)

TY  - JOUR
AU  - Mandić, Mina
AU  - Spasić, Jelena
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija S.
AU  - Ćosović, Vladan
AU  - O'Connor, Kevin E.
AU  - Nikodinović-Runić, Jasmina
AU  - Đokić, Lidija
AU  - Jeremić, Sanja
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2955
AB  - Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(ε-caprolactone) (PCL) or polyhydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 μm) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 μm) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chlororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis B-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.
PB  - Elsevier
T2  - Polymer Degradation and Stability
T1  - Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil
VL  - 162
SP  - 160
EP  - 168
DO  - 10.1016/j.polymdegradstab.2019.02.012
ER  - 
@article{
author = "Mandić, Mina and Spasić, Jelena and Ponjavić, Marijana and Nikolić, Marija S. and Ćosović, Vladan and O'Connor, Kevin E. and Nikodinović-Runić, Jasmina and Đokić, Lidija and Jeremić, Sanja",
year = "2019",
abstract = "Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(ε-caprolactone) (PCL) or polyhydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 μm) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 μm) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chlororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis B-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.",
publisher = "Elsevier",
journal = "Polymer Degradation and Stability",
title = "Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil",
volume = "162",
pages = "160-168",
doi = "10.1016/j.polymdegradstab.2019.02.012"
}
Mandić, M., Spasić, J., Ponjavić, M., Nikolić, M. S., Ćosović, V., O'Connor, K. E., Nikodinović-Runić, J., Đokić, L.,& Jeremić, S.. (2019). Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability
Elsevier., 162, 160-168.
https://doi.org/10.1016/j.polymdegradstab.2019.02.012
Mandić M, Spasić J, Ponjavić M, Nikolić MS, Ćosović V, O'Connor KE, Nikodinović-Runić J, Đokić L, Jeremić S. Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability. 2019;162:160-168.
doi:10.1016/j.polymdegradstab.2019.02.012 .
Mandić, Mina, Spasić, Jelena, Ponjavić, Marijana, Nikolić, Marija S., Ćosović, Vladan, O'Connor, Kevin E., Nikodinović-Runić, Jasmina, Đokić, Lidija, Jeremić, Sanja, "Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil" in Polymer Degradation and Stability, 162 (2019):160-168,
https://doi.org/10.1016/j.polymdegradstab.2019.02.012 . .
20
6
20

Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil

Mandić, Mina; Spasić, Jelena; Ponjavić, Marijana; Nikolić, Marija S.; Ćosović, Vladan; O'Connor, Kevin E.; Nikodinović-Runić, Jasmina; Đokić, Lidija; Jeremić, Sanja

(Elsevier, 2019)

TY  - JOUR
AU  - Mandić, Mina
AU  - Spasić, Jelena
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija S.
AU  - Ćosović, Vladan
AU  - O'Connor, Kevin E.
AU  - Nikodinović-Runić, Jasmina
AU  - Đokić, Lidija
AU  - Jeremić, Sanja
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2956
AB  - Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(ε-caprolactone) (PCL) or polyhydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 μm) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 μm) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chlororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis B-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.
PB  - Elsevier
T2  - Polymer Degradation and Stability
T1  - Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil
VL  - 162
SP  - 160
EP  - 168
DO  - 10.1016/j.polymdegradstab.2019.02.012
ER  - 
@article{
author = "Mandić, Mina and Spasić, Jelena and Ponjavić, Marijana and Nikolić, Marija S. and Ćosović, Vladan and O'Connor, Kevin E. and Nikodinović-Runić, Jasmina and Đokić, Lidija and Jeremić, Sanja",
year = "2019",
abstract = "Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(ε-caprolactone) (PCL) or polyhydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 μm) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 μm) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chlororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis B-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.",
publisher = "Elsevier",
journal = "Polymer Degradation and Stability",
title = "Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil",
volume = "162",
pages = "160-168",
doi = "10.1016/j.polymdegradstab.2019.02.012"
}
Mandić, M., Spasić, J., Ponjavić, M., Nikolić, M. S., Ćosović, V., O'Connor, K. E., Nikodinović-Runić, J., Đokić, L.,& Jeremić, S.. (2019). Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability
Elsevier., 162, 160-168.
https://doi.org/10.1016/j.polymdegradstab.2019.02.012
Mandić M, Spasić J, Ponjavić M, Nikolić MS, Ćosović V, O'Connor KE, Nikodinović-Runić J, Đokić L, Jeremić S. Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability. 2019;162:160-168.
doi:10.1016/j.polymdegradstab.2019.02.012 .
Mandić, Mina, Spasić, Jelena, Ponjavić, Marijana, Nikolić, Marija S., Ćosović, Vladan, O'Connor, Kevin E., Nikodinović-Runić, Jasmina, Đokić, Lidija, Jeremić, Sanja, "Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil" in Polymer Degradation and Stability, 162 (2019):160-168,
https://doi.org/10.1016/j.polymdegradstab.2019.02.012 . .
20
6
20

Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers

Ponjavić, Marijana; Nikolić, Marija S.; Jeremić, Sanja; Đokić, Lidija; Nikodinović-Runić, Jasmina; Ćosović, Vladan; Đonlagić, Jasna

(Springer, 2018)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija S.
AU  - Jeremić, Sanja
AU  - Đokić, Lidija
AU  - Nikodinović-Runić, Jasmina
AU  - Ćosović, Vladan
AU  - Đonlagić, Jasna
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2311
AB  - Hydrolytic, enzymatic degradation and composting under controlled conditions of series of triblock PCL/PEO copolymers, PCEC, with central short PEO block (M (n) 400 g/mol) are presented and compared with homopolymer (PCL). The PCEC copolymers, synthesized via ring-opening polymerization of epsilon-caprolactone, were characterized by H-1 NMR, quantitative C-13 NMR, GPC, DSC and WAXS. The introduction of the PEO central segment ( LT  2 wt%) in PCL chains significantly affected thermal degradation and crystallization behavior, while the hydrophobicity was slightly reduced as confirmed by water absorption and moisture uptake experiments. Hydrolytic degradation studies in phosphate buffer after 8 weeks indicated a small weight loss, while FTIR analysis detected changes in crystallinity indexes and GPC measurements revealed bulk degradation. Enzymatic degradation tested by cell-free extracts containing Pseudomonas aeruginosa PAO1 confirmed high enzyme activity throughout the surface causing morphological changes detected by optical microscopy and AFM analysis. The changes in roughness of polymer films revealed surface erosion mechanism of enzymatic degradation. Copolymer with the highest content of PEO segment and the lowest molecular weight showed better degradation ability compared to PCL and other copolymers. Furthermore, composting of polymer films in a model compost system at 37 A degrees C resulted in significant degradation of the all synthesized block copolymers.
PB  - Springer
T2  - Journal of Polymers and the Environment
T1  - Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers
VL  - 26
IS  - 6
SP  - 2346
EP  - 2359
DO  - 10.1007/s10924-017-1130-2
ER  - 
@article{
author = "Ponjavić, Marijana and Nikolić, Marija S. and Jeremić, Sanja and Đokić, Lidija and Nikodinović-Runić, Jasmina and Ćosović, Vladan and Đonlagić, Jasna",
year = "2018",
abstract = "Hydrolytic, enzymatic degradation and composting under controlled conditions of series of triblock PCL/PEO copolymers, PCEC, with central short PEO block (M (n) 400 g/mol) are presented and compared with homopolymer (PCL). The PCEC copolymers, synthesized via ring-opening polymerization of epsilon-caprolactone, were characterized by H-1 NMR, quantitative C-13 NMR, GPC, DSC and WAXS. The introduction of the PEO central segment ( LT  2 wt%) in PCL chains significantly affected thermal degradation and crystallization behavior, while the hydrophobicity was slightly reduced as confirmed by water absorption and moisture uptake experiments. Hydrolytic degradation studies in phosphate buffer after 8 weeks indicated a small weight loss, while FTIR analysis detected changes in crystallinity indexes and GPC measurements revealed bulk degradation. Enzymatic degradation tested by cell-free extracts containing Pseudomonas aeruginosa PAO1 confirmed high enzyme activity throughout the surface causing morphological changes detected by optical microscopy and AFM analysis. The changes in roughness of polymer films revealed surface erosion mechanism of enzymatic degradation. Copolymer with the highest content of PEO segment and the lowest molecular weight showed better degradation ability compared to PCL and other copolymers. Furthermore, composting of polymer films in a model compost system at 37 A degrees C resulted in significant degradation of the all synthesized block copolymers.",
publisher = "Springer",
journal = "Journal of Polymers and the Environment",
title = "Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers",
volume = "26",
number = "6",
pages = "2346-2359",
doi = "10.1007/s10924-017-1130-2"
}
Ponjavić, M., Nikolić, M. S., Jeremić, S., Đokić, L., Nikodinović-Runić, J., Ćosović, V.,& Đonlagić, J.. (2018). Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers. in Journal of Polymers and the Environment
Springer., 26(6), 2346-2359.
https://doi.org/10.1007/s10924-017-1130-2
Ponjavić M, Nikolić MS, Jeremić S, Đokić L, Nikodinović-Runić J, Ćosović V, Đonlagić J. Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers. in Journal of Polymers and the Environment. 2018;26(6):2346-2359.
doi:10.1007/s10924-017-1130-2 .
Ponjavić, Marijana, Nikolić, Marija S., Jeremić, Sanja, Đokić, Lidija, Nikodinović-Runić, Jasmina, Ćosović, Vladan, Đonlagić, Jasna, "Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers" in Journal of Polymers and the Environment, 26, no. 6 (2018):2346-2359,
https://doi.org/10.1007/s10924-017-1130-2 . .
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Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions

Ponjavić, Marijana; Nikolić, Marija S.; Nikodinović-Runić, Jasmina; Jeremić, Sanja; Stevanović, Sanja; Đonlagić, Jasna

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija S.
AU  - Nikodinović-Runić, Jasmina
AU  - Jeremić, Sanja
AU  - Stevanović, Sanja
AU  - Đonlagić, Jasna
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2200
AB  - Short-term hydrolytic and enzymatic degradation of poly(epsilon-caprolactone) (PCL), one series of triblock (PCL/PEO/PCL) and the other of diblock (PCL/PEO) copolymers, with a low content of hydrophilic PEO segments is presented. The effect of the introduction of PEO as the central or lateral segment in the PCL chain on copolymer hydrolysis and biodegradation properties was investigated. FUR results revealed higher hydrolytic degradation susceptibility of diblock copolymers due to a higher hydrophilicity compared to PCL and triblock copolymers. Enzymatic degradation was tested using cell-free extracts of Pseudomonas aeruginosa PAO1, for two weeks by following the weight loss, changes in surface roughness, and changes in carbonyl and crystallinity index. The results confirmed that all samples underwent enzymatic degradation through surface erosion which was accompanied with a decrease in molecular weights. Diblock copolymers showed significantly higher weight loss and decrease in molecular weight in comparison to PCL itself and triblock copolymers. AFM analysis confirmed significant surface erosion and increase in RMS values. In addition, biodegradation of polymer films was tested in compost model system at 37 degrees C, where an effective degradation of block copolymers was observed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Polymer Testing
T1  - Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions
VL  - 57
SP  - 67
EP  - 77
DO  - 10.1016/j.polymertesting.2016.11.018
ER  - 
@article{
author = "Ponjavić, Marijana and Nikolić, Marija S. and Nikodinović-Runić, Jasmina and Jeremić, Sanja and Stevanović, Sanja and Đonlagić, Jasna",
year = "2017",
abstract = "Short-term hydrolytic and enzymatic degradation of poly(epsilon-caprolactone) (PCL), one series of triblock (PCL/PEO/PCL) and the other of diblock (PCL/PEO) copolymers, with a low content of hydrophilic PEO segments is presented. The effect of the introduction of PEO as the central or lateral segment in the PCL chain on copolymer hydrolysis and biodegradation properties was investigated. FUR results revealed higher hydrolytic degradation susceptibility of diblock copolymers due to a higher hydrophilicity compared to PCL and triblock copolymers. Enzymatic degradation was tested using cell-free extracts of Pseudomonas aeruginosa PAO1, for two weeks by following the weight loss, changes in surface roughness, and changes in carbonyl and crystallinity index. The results confirmed that all samples underwent enzymatic degradation through surface erosion which was accompanied with a decrease in molecular weights. Diblock copolymers showed significantly higher weight loss and decrease in molecular weight in comparison to PCL itself and triblock copolymers. AFM analysis confirmed significant surface erosion and increase in RMS values. In addition, biodegradation of polymer films was tested in compost model system at 37 degrees C, where an effective degradation of block copolymers was observed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Polymer Testing",
title = "Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions",
volume = "57",
pages = "67-77",
doi = "10.1016/j.polymertesting.2016.11.018"
}
Ponjavić, M., Nikolić, M. S., Nikodinović-Runić, J., Jeremić, S., Stevanović, S.,& Đonlagić, J.. (2017). Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions. in Polymer Testing
Elsevier Sci Ltd, Oxford., 57, 67-77.
https://doi.org/10.1016/j.polymertesting.2016.11.018
Ponjavić M, Nikolić MS, Nikodinović-Runić J, Jeremić S, Stevanović S, Đonlagić J. Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions. in Polymer Testing. 2017;57:67-77.
doi:10.1016/j.polymertesting.2016.11.018 .
Ponjavić, Marijana, Nikolić, Marija S., Nikodinović-Runić, Jasmina, Jeremić, Sanja, Stevanović, Sanja, Đonlagić, Jasna, "Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions" in Polymer Testing, 57 (2017):67-77,
https://doi.org/10.1016/j.polymertesting.2016.11.018 . .
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Interactions of the metal tolerant heterotrophic microorganisms and iron oxidizing autotrophic bacteria from sulphidic mine environment during bioleaching experiments

Jeremić, Sanja; Beškoski, Vladimir; Đokić, Lidija; Vasiljevic, Branka; Vrvić, Miroslav; Avdalović, Jelena; Gojgić-Cvijović, Gordana; Slavković Beškoski, Latinka; Nikodinović-Runić, Jasmina

(Academic Press Ltd- Elsevier Science Ltd, London, 2016)

TY  - JOUR
AU  - Jeremić, Sanja
AU  - Beškoski, Vladimir
AU  - Đokić, Lidija
AU  - Vasiljevic, Branka
AU  - Vrvić, Miroslav
AU  - Avdalović, Jelena
AU  - Gojgić-Cvijović, Gordana
AU  - Slavković Beškoski, Latinka
AU  - Nikodinović-Runić, Jasmina
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2033
AB  - Iron and sulfur oxidizing chemolithoautotrophic acidophilic bacteria, such as Acidithiobacillus species, hold the dominant role in mine environments characterized by low pH values and high concentrations of reduced sulfur and iron compounds, such as ores, rocks and acid drainage waters from mines. On the other hand, heterotrophic microorganisms, especially their biofilms, from these specific niches are receiving increased attention, but their potential eco-physiological roles have not been fully understood. Biofilms are considered a threat to human health, but biofilms also have beneficial properties as they are deployed in waste recycling and bioremediation systems. We have analyzed interactions of the metal tolerant heterotrophic microorganisms in biofilms with iron oxidizing autotrophic bacteria both from the sulphidic mine environment (copper mine Bor, Serbia). High tolerance to Cu2+, Cd2+ and Cr6+ and the presence of genetic determinants for the respective metal tolerance and biofilm-forming ability was shown for indigenous heterotrophic bacteria that included strains of Staphylococcus and Rhodococcus. Two well characterized bacteria-Pseudomonas aeruginosa PAO1 (known biofilm former) and Cupriavidus metallidurans CH34 (known metal resistant representative) were also included in the study. The interaction and survivability of autotrophic iron oxidizing Acidithiobacillus bacteria and biofilms of heterotrophic bacteria during co-cultivation was revealed. Finally, the effect of heterotrophic biofilms on bioleaching process with indigenous iron oxidizing Acidithiobacillus species was shown not to be inhibitory under in vitro conditions.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Environmental Management
T1  - Interactions of the metal tolerant heterotrophic microorganisms and iron oxidizing autotrophic bacteria from sulphidic mine environment during bioleaching experiments
VL  - 172
SP  - 151
EP  - 161
DO  - 10.1016/j.jenvman.2016.02.041
ER  - 
@article{
author = "Jeremić, Sanja and Beškoski, Vladimir and Đokić, Lidija and Vasiljevic, Branka and Vrvić, Miroslav and Avdalović, Jelena and Gojgić-Cvijović, Gordana and Slavković Beškoski, Latinka and Nikodinović-Runić, Jasmina",
year = "2016",
abstract = "Iron and sulfur oxidizing chemolithoautotrophic acidophilic bacteria, such as Acidithiobacillus species, hold the dominant role in mine environments characterized by low pH values and high concentrations of reduced sulfur and iron compounds, such as ores, rocks and acid drainage waters from mines. On the other hand, heterotrophic microorganisms, especially their biofilms, from these specific niches are receiving increased attention, but their potential eco-physiological roles have not been fully understood. Biofilms are considered a threat to human health, but biofilms also have beneficial properties as they are deployed in waste recycling and bioremediation systems. We have analyzed interactions of the metal tolerant heterotrophic microorganisms in biofilms with iron oxidizing autotrophic bacteria both from the sulphidic mine environment (copper mine Bor, Serbia). High tolerance to Cu2+, Cd2+ and Cr6+ and the presence of genetic determinants for the respective metal tolerance and biofilm-forming ability was shown for indigenous heterotrophic bacteria that included strains of Staphylococcus and Rhodococcus. Two well characterized bacteria-Pseudomonas aeruginosa PAO1 (known biofilm former) and Cupriavidus metallidurans CH34 (known metal resistant representative) were also included in the study. The interaction and survivability of autotrophic iron oxidizing Acidithiobacillus bacteria and biofilms of heterotrophic bacteria during co-cultivation was revealed. Finally, the effect of heterotrophic biofilms on bioleaching process with indigenous iron oxidizing Acidithiobacillus species was shown not to be inhibitory under in vitro conditions.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Environmental Management",
title = "Interactions of the metal tolerant heterotrophic microorganisms and iron oxidizing autotrophic bacteria from sulphidic mine environment during bioleaching experiments",
volume = "172",
pages = "151-161",
doi = "10.1016/j.jenvman.2016.02.041"
}
Jeremić, S., Beškoski, V., Đokić, L., Vasiljevic, B., Vrvić, M., Avdalović, J., Gojgić-Cvijović, G., Slavković Beškoski, L.,& Nikodinović-Runić, J.. (2016). Interactions of the metal tolerant heterotrophic microorganisms and iron oxidizing autotrophic bacteria from sulphidic mine environment during bioleaching experiments. in Journal of Environmental Management
Academic Press Ltd- Elsevier Science Ltd, London., 172, 151-161.
https://doi.org/10.1016/j.jenvman.2016.02.041
Jeremić S, Beškoski V, Đokić L, Vasiljevic B, Vrvić M, Avdalović J, Gojgić-Cvijović G, Slavković Beškoski L, Nikodinović-Runić J. Interactions of the metal tolerant heterotrophic microorganisms and iron oxidizing autotrophic bacteria from sulphidic mine environment during bioleaching experiments. in Journal of Environmental Management. 2016;172:151-161.
doi:10.1016/j.jenvman.2016.02.041 .
Jeremić, Sanja, Beškoski, Vladimir, Đokić, Lidija, Vasiljevic, Branka, Vrvić, Miroslav, Avdalović, Jelena, Gojgić-Cvijović, Gordana, Slavković Beškoski, Latinka, Nikodinović-Runić, Jasmina, "Interactions of the metal tolerant heterotrophic microorganisms and iron oxidizing autotrophic bacteria from sulphidic mine environment during bioleaching experiments" in Journal of Environmental Management, 172 (2016):151-161,
https://doi.org/10.1016/j.jenvman.2016.02.041 . .
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