TY  - CONF
AU  - Anđelković, Ljubica
AU  - Kuraica, Milorad M.
AU  - Nikolić, Aleksandar S.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5891
AB  - The spectral analysis of external magnetic field influence on hydrothermally synthesized CoFe2O4, FeFe2O4, and MgFe2O4 nanoparticles in ferrofluid was presented. In order to control particle growth, stabilize particles against aggregation and enhance dispersibility in an aqueous medium, surface coating was achieved using citric and oleic acid, popular surfactants in preparation of magnetic particles for medical applications. New experimental settings were developed for the study of behavior of ferrofluids with the applied magnetic field strength in the range of 30-400 mT. Field-induced change of transmittance occurred and a precipitation of all studied samples was obtained. Contrary to the linear aggregates of colloidal CoFe2O4 and FeFe2O4, approximately spherical aggregates were observed in the case of MgFe2O4. The behavior of this kind of ferrites is in accordance with its soft magnetic nature. In all cases, the surface modification resulted in decreased dipole-dipole interactions between magnetic cores, and consequentially less precipitates were noticed. All citrate coated nanoparticles have shown stronger magnetic response in comparison to the oleate modified samples. The aggregation of nanoparticles potentially increases cytotoxicity although it is still unknown how aggregates formed in external magnetic field affect biological responses when ferrites are used in biomedical applications. Regarding non-linear clustering of MgFe2O4 suspensions, it can be concluded that its excretion from the organism could be likely easier and faster when used in diagnosis and/or therapy. Therefore, more attention should be paid to the low toxic MgFe2O4 for its medical application.
PB  - Skopje: Society of the chemists and technologists of Macedonia
C3  - Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia
T1  - External magnetic field-induced aggregation and sedimentation processes arising in magnetic fluids
SP  - 19
EP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_cer_5891
ER  - 

@conference{
author = "Anđelković, Ljubica and Kuraica, Milorad M. and Nikolić, Aleksandar S.",
year = "2018",
abstract = "The spectral analysis of external magnetic field influence on hydrothermally synthesized CoFe2O4, FeFe2O4, and MgFe2O4 nanoparticles in ferrofluid was presented. In order to control particle growth, stabilize particles against aggregation and enhance dispersibility in an aqueous medium, surface coating was achieved using citric and oleic acid, popular surfactants in preparation of magnetic particles for medical applications. New experimental settings were developed for the study of behavior of ferrofluids with the applied magnetic field strength in the range of 30-400 mT. Field-induced change of transmittance occurred and a precipitation of all studied samples was obtained. Contrary to the linear aggregates of colloidal CoFe2O4 and FeFe2O4, approximately spherical aggregates were observed in the case of MgFe2O4. The behavior of this kind of ferrites is in accordance with its soft magnetic nature. In all cases, the surface modification resulted in decreased dipole-dipole interactions between magnetic cores, and consequentially less precipitates were noticed. All citrate coated nanoparticles have shown stronger magnetic response in comparison to the oleate modified samples. The aggregation of nanoparticles potentially increases cytotoxicity although it is still unknown how aggregates formed in external magnetic field affect biological responses when ferrites are used in biomedical applications. Regarding non-linear clustering of MgFe2O4 suspensions, it can be concluded that its excretion from the organism could be likely easier and faster when used in diagnosis and/or therapy. Therefore, more attention should be paid to the low toxic MgFe2O4 for its medical application.",
publisher = "Skopje: Society of the chemists and technologists of Macedonia",
journal = "Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia",
title = "External magnetic field-induced aggregation and sedimentation processes arising in magnetic fluids",
pages = "19-19",
url = "https://hdl.handle.net/21.15107/rcub_cer_5891"
}

Anđelković, L., Kuraica, M. M.,& Nikolić, A. S.. (2018). External magnetic field-induced aggregation and sedimentation processes arising in magnetic fluids. in Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia
Skopje: Society of the chemists and technologists of Macedonia., 19-19.
https://hdl.handle.net/21.15107/rcub_cer_5891

Anđelković L, Kuraica MM, Nikolić AS. External magnetic field-induced aggregation and sedimentation processes arising in magnetic fluids. in Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia. 2018;:19-19.
https://hdl.handle.net/21.15107/rcub_cer_5891 .

Anđelković, Ljubica, Kuraica, Milorad M., Nikolić, Aleksandar S., "External magnetic field-induced aggregation and sedimentation processes arising in magnetic fluids" in Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia (2018):19-19,
https://hdl.handle.net/21.15107/rcub_cer_5891 .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Vulić, Predrag
AU  - Iskrenović, Predrag
AU  - Krstić, Ivan
AU  - Lakić, Mladen
AU  - Kuraica, Milorad M.
AU  - Nikolić, Aleksandar S.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5892
AB  - Cobalt ferrite (CoFe2O4) particles have been prepared in nanocrystalline form by several techniques (hydrothermal synthesis, ultrasonic assisted synthesis, microemulsion synthesis, mechanochemical synthesis and microwave synthesis). All samples were coated with starch to find biomedical applications in the field of drug delivery, MRI and hyperthermia. Cobalt ferrite is chosen because its high magneto-crystalline anisotropy that originates from the spin-orbit coupling at crystal lattices. The synthesized coated and uncoated nanoparticles were characterized by X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Light transmitting measurements of laser beam of 655 nm propagating through starch coated CoFe2O4 nanoparticles, under the influence of an external magnetic field, were presented.
PB  - Skopje: Society of the chemists and technologists of Macedonia
C3  - Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia
T1  - Biocompatible magnetic colloids: insight into the structure, morphology and influence of external magnetic field
SP  - 33
EP  - 33
UR  - https://hdl.handle.net/21.15107/rcub_cer_5892
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Vulić, Predrag and Iskrenović, Predrag and Krstić, Ivan and Lakić, Mladen and Kuraica, Milorad M. and Nikolić, Aleksandar S.",
year = "2018",
abstract = "Cobalt ferrite (CoFe2O4) particles have been prepared in nanocrystalline form by several techniques (hydrothermal synthesis, ultrasonic assisted synthesis, microemulsion synthesis, mechanochemical synthesis and microwave synthesis). All samples were coated with starch to find biomedical applications in the field of drug delivery, MRI and hyperthermia. Cobalt ferrite is chosen because its high magneto-crystalline anisotropy that originates from the spin-orbit coupling at crystal lattices. The synthesized coated and uncoated nanoparticles were characterized by X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Light transmitting measurements of laser beam of 655 nm propagating through starch coated CoFe2O4 nanoparticles, under the influence of an external magnetic field, were presented.",
publisher = "Skopje: Society of the chemists and technologists of Macedonia",
journal = "Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia",
title = "Biocompatible magnetic colloids: insight into the structure, morphology and influence of external magnetic field",
pages = "33-33",
url = "https://hdl.handle.net/21.15107/rcub_cer_5892"
}

Šuljagić, M., Anđelković, L., Vulić, P., Iskrenović, P., Krstić, I., Lakić, M., Kuraica, M. M.,& Nikolić, A. S.. (2018). Biocompatible magnetic colloids: insight into the structure, morphology and influence of external magnetic field. in Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia
Skopje: Society of the chemists and technologists of Macedonia., 33-33.
https://hdl.handle.net/21.15107/rcub_cer_5892

Šuljagić M, Anđelković L, Vulić P, Iskrenović P, Krstić I, Lakić M, Kuraica MM, Nikolić AS. Biocompatible magnetic colloids: insight into the structure, morphology and influence of external magnetic field. in Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia. 2018;:33-33.
https://hdl.handle.net/21.15107/rcub_cer_5892 .

Šuljagić, Marija, Anđelković, Ljubica, Vulić, Predrag, Iskrenović, Predrag, Krstić, Ivan, Lakić, Mladen, Kuraica, Milorad M., Nikolić, Aleksandar S., "Biocompatible magnetic colloids: insight into the structure, morphology and influence of external magnetic field" in Book of abstracts, 25th Congress of the Society of Chemists and Technologists of Macedonia, Septemberr 19-22, 2018, Ohrid, Macedonia (2018):33-33,
https://hdl.handle.net/21.15107/rcub_cer_5892 .