Obradović, Nina

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orcid::0000-0001-6590-9950
  • Obradović, Nina (2)

Author's Bibliography

Multiferroic heterostructure BaTiO3/ε-Fe2O3composite obtained by in situ reaction

Filipović, Suzana; Obradović, Nina; Anđelković, Ljubica; Olćan, Dragan; Petrović, Jovana P.; Mirković, Marija; Pavlović, Vladimir B.; Jeremić, Dejan; Vlahović, Branislav; Đorđević, Antonije

(ETRAN Society, 2021)

TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Anđelković, Ljubica
AU  - Olćan, Dragan
AU  - Petrović, Jovana P.
AU  - Mirković, Marija
AU  - Pavlović, Vladimir B.
AU  - Jeremić, Dejan
AU  - Vlahović, Branislav
AU  - Đorđević, Antonije
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4511
AB  - Solid-state reaction between BaTiO3and Fe2O3was used to produce a multiferroic heterostructure composite. Commercial BaTiO3and Fe(NO3)3•9H2O were suspended in ethanol for 30 minutes in an ultrasound bath. The prepared mixture was thermally processed at 300°C for 6 h. Sintering at 1300 °C for 1 h resulted in a mixture of different phases, BaTiO3, BaFe12O19and Ba12Ti28Fe15O84, which were confirmed by x-ray powder diffraction. A dense microstructure with a small volume fraction of closed porosity was indicated by the scanning electron microscopy, while a homogeneous distribution of Fe ions over BaTiO3phase was visible from energy dispersive spectroscopy mapping. Doping of BaTiO3with Fe2O3resulted in formation of magnetic hexaferrite phases, as confirmed by dielectric measurements that showed a broadened maximum of the permittivity measured as a function of temperature. © 2021 Authors. Published by association for ETRAN Society.
PB  - ETRAN Society
T2  - Science of Sintering
T2  - Science of Sintering
T1  - Multiferroic heterostructure BaTiO3/ε-Fe2O3composite obtained by in situ reaction
VL  - 53
IS  - 1
SP  - 1
EP  - 8
DO  - 10.2298/SOS2101001F
ER  - 
@article{
author = "Filipović, Suzana and Obradović, Nina and Anđelković, Ljubica and Olćan, Dragan and Petrović, Jovana P. and Mirković, Marija and Pavlović, Vladimir B. and Jeremić, Dejan and Vlahović, Branislav and Đorđević, Antonije",
year = "2021",
abstract = "Solid-state reaction between BaTiO3and Fe2O3was used to produce a multiferroic heterostructure composite. Commercial BaTiO3and Fe(NO3)3•9H2O were suspended in ethanol for 30 minutes in an ultrasound bath. The prepared mixture was thermally processed at 300°C for 6 h. Sintering at 1300 °C for 1 h resulted in a mixture of different phases, BaTiO3, BaFe12O19and Ba12Ti28Fe15O84, which were confirmed by x-ray powder diffraction. A dense microstructure with a small volume fraction of closed porosity was indicated by the scanning electron microscopy, while a homogeneous distribution of Fe ions over BaTiO3phase was visible from energy dispersive spectroscopy mapping. Doping of BaTiO3with Fe2O3resulted in formation of magnetic hexaferrite phases, as confirmed by dielectric measurements that showed a broadened maximum of the permittivity measured as a function of temperature. © 2021 Authors. Published by association for ETRAN Society.",
publisher = "ETRAN Society",
journal = "Science of Sintering, Science of Sintering",
title = "Multiferroic heterostructure BaTiO3/ε-Fe2O3composite obtained by in situ reaction",
volume = "53",
number = "1",
pages = "1-8",
doi = "10.2298/SOS2101001F"
}
Filipović, S., Obradović, N., Anđelković, L., Olćan, D., Petrović, J. P., Mirković, M., Pavlović, V. B., Jeremić, D., Vlahović, B.,& Đorđević, A.. (2021). Multiferroic heterostructure BaTiO3/ε-Fe2O3composite obtained by in situ reaction. in Science of Sintering
ETRAN Society., 53(1), 1-8.
https://doi.org/10.2298/SOS2101001F
Filipović S, Obradović N, Anđelković L, Olćan D, Petrović JP, Mirković M, Pavlović VB, Jeremić D, Vlahović B, Đorđević A. Multiferroic heterostructure BaTiO3/ε-Fe2O3composite obtained by in situ reaction. in Science of Sintering. 2021;53(1):1-8.
doi:10.2298/SOS2101001F .
Filipović, Suzana, Obradović, Nina, Anđelković, Ljubica, Olćan, Dragan, Petrović, Jovana P., Mirković, Marija, Pavlović, Vladimir B., Jeremić, Dejan, Vlahović, Branislav, Đorđević, Antonije, "Multiferroic heterostructure BaTiO3/ε-Fe2O3composite obtained by in situ reaction" in Science of Sintering, 53, no. 1 (2021):1-8,
https://doi.org/10.2298/SOS2101001F . .

Facile synthesis of hydrophilic polymer-capped upconverting NaYF4:Yb,Er particles

Mitić, Vojislav V.; Mančić, Lidija; Obradović, Nina; Dinić, Ivana; Mančić, Lidija; Nikolić, Marko G.; Radulović, Katarina; Marinković, Bojan A.; Milošević, Olivera B.

(Belgrade : Serbian Ceramic Society, 2017)

TY  - CONF
AU  - Dinić, Ivana
AU  - Mančić, Lidija
AU  - Nikolić, Marko G.
AU  - Radulović, Katarina
AU  - Marinković, Bojan A.
AU  - Milošević, Olivera B.
PY  - 2017
UR  - http://dais.sanu.ac.rs/123456789/2361
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2772
AB  - Over the last decade, solvothermal decomposition of organometallic compounds has been indicated as one of the most convenient method for the synthesis of monodisperse lanthanide doped upconverting fluorides. Due to their hydrophobic nature such particles could not be used for a conjugation of the molecular targeting agents which is necessary for optical imaging of biological tissues. In this work, hydrophilic NaYF4:Yb,Er (17 mol% Yb; 3mol% Er) nanoparticles were synthesized by facile one-pot hydrothermal synthesis performed with a help of chitosan (CS) and poly(acrylic acid) (PAA). Obtained powders were analyzed by X-ray powder diffraction (XRPD), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR) and photoluminescence (PL) spectroscopy. The obtained results implied that particle size, shape and surface characteristics are dependent on the polymer choice. Although both powders crystallize in the same crystal arrangement (cubic, Fm-3m) more intense red emission, assigned to the Er3+ 4F9/2 → 4I15/2 electronic transitions, characterize spherical NaYF4:Yb,Er@CS particles. To asses a biological safety of their use, viability of the human gingival fibroblasts (HFG) was additionally tested by a colorimetric MTT assay.
PB  - Belgrade : Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference Advanced Ceramics and Application VI:  Program and the Book of Abstracts
T1  - Facile synthesis of hydrophilic polymer-capped upconverting NaYF4:Yb,Er particles
ER  - 
@conference{
editor = "Mitić, Vojislav V., Mančić, Lidija, Obradović, Nina",
author = "Dinić, Ivana and Mančić, Lidija and Nikolić, Marko G. and Radulović, Katarina and Marinković, Bojan A. and Milošević, Olivera B.",
year = "2017",
abstract = "Over the last decade, solvothermal decomposition of organometallic compounds has been indicated as one of the most convenient method for the synthesis of monodisperse lanthanide doped upconverting fluorides. Due to their hydrophobic nature such particles could not be used for a conjugation of the molecular targeting agents which is necessary for optical imaging of biological tissues. In this work, hydrophilic NaYF4:Yb,Er (17 mol% Yb; 3mol% Er) nanoparticles were synthesized by facile one-pot hydrothermal synthesis performed with a help of chitosan (CS) and poly(acrylic acid) (PAA). Obtained powders were analyzed by X-ray powder diffraction (XRPD), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR) and photoluminescence (PL) spectroscopy. The obtained results implied that particle size, shape and surface characteristics are dependent on the polymer choice. Although both powders crystallize in the same crystal arrangement (cubic, Fm-3m) more intense red emission, assigned to the Er3+ 4F9/2 → 4I15/2 electronic transitions, characterize spherical NaYF4:Yb,Er@CS particles. To asses a biological safety of their use, viability of the human gingival fibroblasts (HFG) was additionally tested by a colorimetric MTT assay.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference Advanced Ceramics and Application VI:  Program and the Book of Abstracts",
title = "Facile synthesis of hydrophilic polymer-capped upconverting NaYF4:Yb,Er particles"
}
Mitić, V. V., Mančić, L., Obradović, N., Dinić, I., Mančić, L., Nikolić, M. G., Radulović, K., Marinković, B. A.,& Milošević, O. B.. (2017). Facile synthesis of hydrophilic polymer-capped upconverting NaYF4:Yb,Er particles. in Serbian Ceramic Society Conference Advanced Ceramics and Application VI:  Program and the Book of Abstracts
Belgrade : Serbian Ceramic Society..
Mitić VV, Mančić L, Obradović N, Dinić I, Mančić L, Nikolić MG, Radulović K, Marinković BA, Milošević OB. Facile synthesis of hydrophilic polymer-capped upconverting NaYF4:Yb,Er particles. in Serbian Ceramic Society Conference Advanced Ceramics and Application VI:  Program and the Book of Abstracts. 2017;..
Mitić, Vojislav V., Mančić, Lidija, Obradović, Nina, Dinić, Ivana, Mančić, Lidija, Nikolić, Marko G., Radulović, Katarina, Marinković, Bojan A., Milošević, Olivera B., "Facile synthesis of hydrophilic polymer-capped upconverting NaYF4:Yb,Er particles" in Serbian Ceramic Society Conference Advanced Ceramics and Application VI:  Program and the Book of Abstracts (2017).