Rašić, Goran

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377b0444-a519-4e50-803d-13703f79e2e7
  • Rašić, Goran (3)
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Author's Bibliography

DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells

Dojčilović, Radovan; Pajović, Jelena D.; Božanić, Dušan K.; Jović, Nataša G.; Pavlović, Vera P.; Pavlović, Vladimir B.; Lenhardt Acković, Lea; Zeković, Ivana Lj.; Dramićanin, Miroslav; Kaščakova, Slavka; Refregiers, Matthieu; Rašić, Goran; Vlahović, Branislav; Đoković, Vladimir

(2018)

TY  - JOUR
AU  - Dojčilović, Radovan
AU  - Pajović, Jelena D.
AU  - Božanić, Dušan K.
AU  - Jović, Nataša G.
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Lenhardt Acković, Lea
AU  - Zeković, Ivana Lj.
AU  - Dramićanin, Miroslav
AU  - Kaščakova, Slavka
AU  - Refregiers, Matthieu
AU  - Rašić, Goran
AU  - Vlahović, Branislav
AU  - Đoković, Vladimir
PY  - 2018
UR  - http://stacks.iop.org/2053-1583/5/i=4/a=045019?key=crossref.f455f07bdfb3469c8077963ff0f38f95
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7909
AB  - The interaction of partially reduced graphene oxide (prGO) and Huh7.5.1 liver cancer cells was investigated by means of DUV fluorescence bioimaging. The prGO sample was obtained by the reduction (to a certain extent) of the initially prepared graphene oxide (GO) nanosheets with hydrazine. The fluorescence of the GO nanosheets increases with time of the reduction due to a change in ratio of the sp2 and sp3 carbon sites and the prGO sample was extracted from the dispersion after 6 min, when the intensity of the fluorescence reached its maximum. The reduction process was left to proceed further to saturation until highly reduced graphene oxide (denoted here as rGO) was obtained. GO, prGO and rGO samples were investigated by structural (scanning electron microscopy (SEM), scanning transmission electron microscopy coupled with energy dispersive spectrometry (STEM-EDS)) and spectroscopic (UV-vis, photoluminescence (PL), Raman) methods. After that, Huh7.5.1 cells were incubated with GO, prGO and rGO nanosheets and used in bioimaging studies, which were performed on DISCO beamline of synchrotron SOLEIL. It was found that the prGO significantly enhanced the fluorescence of the cells and increased the intensity of the signal by ~2.5 times. Time-lapse fluorescence microscopy experiments showed that fluorescence dynamics strongly depends on the type of nanosheets used. The obtained prGO nanostructure can be easily conjugated with aromatic ring containing drugs, which opens a possibility for its applications in fluorescence microscopy monitored drug delivery. © 2018 IOP Publishing Ltd.
T2  - 2D Materials
T1  - DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells
VL  - 5
IS  - 4
SP  - 045019
DO  - 10.1088/2053-1583/aad72b
ER  - 
@article{
author = "Dojčilović, Radovan and Pajović, Jelena D. and Božanić, Dušan K. and Jović, Nataša G. and Pavlović, Vera P. and Pavlović, Vladimir B. and Lenhardt Acković, Lea and Zeković, Ivana Lj. and Dramićanin, Miroslav and Kaščakova, Slavka and Refregiers, Matthieu and Rašić, Goran and Vlahović, Branislav and Đoković, Vladimir",
year = "2018",
url = "http://stacks.iop.org/2053-1583/5/i=4/a=045019?key=crossref.f455f07bdfb3469c8077963ff0f38f95, http://vinar.vin.bg.ac.rs/handle/123456789/7909",
abstract = "The interaction of partially reduced graphene oxide (prGO) and Huh7.5.1 liver cancer cells was investigated by means of DUV fluorescence bioimaging. The prGO sample was obtained by the reduction (to a certain extent) of the initially prepared graphene oxide (GO) nanosheets with hydrazine. The fluorescence of the GO nanosheets increases with time of the reduction due to a change in ratio of the sp2 and sp3 carbon sites and the prGO sample was extracted from the dispersion after 6 min, when the intensity of the fluorescence reached its maximum. The reduction process was left to proceed further to saturation until highly reduced graphene oxide (denoted here as rGO) was obtained. GO, prGO and rGO samples were investigated by structural (scanning electron microscopy (SEM), scanning transmission electron microscopy coupled with energy dispersive spectrometry (STEM-EDS)) and spectroscopic (UV-vis, photoluminescence (PL), Raman) methods. After that, Huh7.5.1 cells were incubated with GO, prGO and rGO nanosheets and used in bioimaging studies, which were performed on DISCO beamline of synchrotron SOLEIL. It was found that the prGO significantly enhanced the fluorescence of the cells and increased the intensity of the signal by ~2.5 times. Time-lapse fluorescence microscopy experiments showed that fluorescence dynamics strongly depends on the type of nanosheets used. The obtained prGO nanostructure can be easily conjugated with aromatic ring containing drugs, which opens a possibility for its applications in fluorescence microscopy monitored drug delivery. © 2018 IOP Publishing Ltd.",
journal = "2D Materials",
title = "DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells",
volume = "5",
number = "4",
pages = "045019",
doi = "10.1088/2053-1583/aad72b"
}
Dojčilović, R., Pajović, J. D., Božanić, D. K., Jović, N. G., Pavlović, V. P., Pavlović, V. B., Lenhardt Acković, L., Zeković, I. Lj., Dramićanin, M., Kaščakova, S., Refregiers, M., Rašić, G., Vlahović, B.,& Đoković, V. (2018). DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells.
2D Materials, 5(4), 045019.
https://doi.org/10.1088/2053-1583/aad72b
Dojčilović R, Pajović JD, Božanić DK, Jović NG, Pavlović VP, Pavlović VB, Lenhardt Acković L, Zeković IL, Dramićanin M, Kaščakova S, Refregiers M, Rašić G, Vlahović B, Đoković V. DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells. 2D Materials. 2018;5(4):045019
Dojčilović Radovan, Pajović Jelena D., Božanić Dušan K., Jović Nataša G., Pavlović Vera P., Pavlović Vladimir B., Lenhardt Acković Lea, Zeković Ivana Lj., Dramićanin Miroslav, Kaščakova Slavka, Refregiers Matthieu, Rašić Goran, Vlahović Branislav, Đoković Vladimir, "DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells" 5, no. 4 (2018):045019,
https://doi.org/10.1088/2053-1583/aad72b .
5

Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures

Vujančević, Jelena; Bjelajac, Anđelika; Obradović, Nina; Pavlović, Vera P.; Mitrić, Miodrag; Janaćković, Đorđe T.; Rašić, Goran; Vlahović, Branislav; Pavlović, Vladimir B.

(Belgrade : Serbian Ceramic Society, 2015)

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Mitrić, Miodrag
AU  - Janaćković, Đorđe T.
AU  - Rašić, Goran
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/764
UR  - http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1038
UR  - http://www.itn.sanu.ac.rs/opus4/files/1038/Vujancevic-ACAIV.pdf
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7527
AB  - The influence of electrochemical conditions and the heat treatment on the crystal structure and the microstructure evolution of TiO2 based nanotubes synthesized by the self-ordering anodization process is investigated in this work. The electrochemical anodization was performed at room temperature, for 30 minutes under 15, 20 and 25 V, with stirring. The as-anodized Ti foils were annealed in air at 450, 600, 650 and 700 °C for 30 minutes. The structure and the lattice dynamics of the samples has been studied by using XRD and Raman spectroscopy methods. The microstructure development of the 1-D TiO2 nanostructures has been analyzed by FESEM.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015
T1  - Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures
SP  - 81
EP  - 81
ER  - 
@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Obradović, Nina and Pavlović, Vera P. and Mitrić, Miodrag and Janaćković, Đorđe T. and Rašić, Goran and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2015",
url = "http://dais.sanu.ac.rs/123456789/764, http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1038, http://www.itn.sanu.ac.rs/opus4/files/1038/Vujancevic-ACAIV.pdf, http://vinar.vin.bg.ac.rs/handle/123456789/7527",
abstract = "The influence of electrochemical conditions and the heat treatment on the crystal structure and the microstructure evolution of TiO2 based nanotubes synthesized by the self-ordering anodization process is investigated in this work. The electrochemical anodization was performed at room temperature, for 30 minutes under 15, 20 and 25 V, with stirring. The as-anodized Ti foils were annealed in air at 450, 600, 650 and 700 °C for 30 minutes. The structure and the lattice dynamics of the samples has been studied by using XRD and Raman spectroscopy methods. The microstructure development of the 1-D TiO2 nanostructures has been analyzed by FESEM.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015",
title = "Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures",
pages = "81-81"
}
Vujančević, J., Bjelajac, A., Obradović, N., Pavlović, V. P., Mitrić, M., Janaćković, Đ. T., Rašić, G., Vlahović, B.,& Pavlović, V. B. (2015). Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures.
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015Belgrade : Serbian Ceramic Society., 81-81.
Vujančević J, Bjelajac A, Obradović N, Pavlović VP, Mitrić M, Janaćković ĐT, Rašić G, Vlahović B, Pavlović VB. Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures. Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015. 2015;:81-81
Vujančević Jelena, Bjelajac Anđelika, Obradović Nina, Pavlović Vera P., Mitrić Miodrag, Janaćković Đorđe T., Rašić Goran, Vlahović Branislav, Pavlović Vladimir B., "Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures" (2015):81-81

Structural investigation of mechanically activated ZnO powder

Peleš, Adriana; Pavlović, Vera P.; Filipovic, S.; Obradovic, N.; Mancic, L.; Krstić, Jelena; Mitrić, Miodrag; Vlahović, Branislav; Rašić, Goran; Kosanovic, D.; Pavlović, Vladimir B.

(2015)

TY  - JOUR
AU  - Peleš, Adriana
AU  - Pavlović, Vera P.
AU  - Filipovic, S.
AU  - Obradovic, N.
AU  - Mancic, L.
AU  - Krstić, Jelena
AU  - Mitrić, Miodrag
AU  - Vlahović, Branislav
AU  - Rašić, Goran
AU  - Kosanovic, D.
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/735
AB  - Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N-2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietvelds method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. (C) 2015 Published by Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Structural investigation of mechanically activated ZnO powder
VL  - 648
SP  - 971
EP  - 979
DO  - 10.1016/j.jallcom.2015.06.247
ER  - 
@article{
author = "Peleš, Adriana and Pavlović, Vera P. and Filipovic, S. and Obradovic, N. and Mancic, L. and Krstić, Jelena and Mitrić, Miodrag and Vlahović, Branislav and Rašić, Goran and Kosanovic, D. and Pavlović, Vladimir B.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/735",
abstract = "Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N-2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietvelds method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. (C) 2015 Published by Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Structural investigation of mechanically activated ZnO powder",
volume = "648",
pages = "971-979",
doi = "10.1016/j.jallcom.2015.06.247"
}
Peleš, A., Pavlović, V. P., Filipovic, S., Obradovic, N., Mancic, L., Krstić, J., Mitrić, M., Vlahović, B., Rašić, G., Kosanovic, D.,& Pavlović, V. B. (2015). Structural investigation of mechanically activated ZnO powder.
Journal of Alloys and Compounds, 648, 971-979.
https://doi.org/10.1016/j.jallcom.2015.06.247
Peleš A, Pavlović VP, Filipovic S, Obradovic N, Mancic L, Krstić J, Mitrić M, Vlahović B, Rašić G, Kosanovic D, Pavlović VB. Structural investigation of mechanically activated ZnO powder. Journal of Alloys and Compounds. 2015;648:971-979
Peleš Adriana, Pavlović Vera P., Filipovic S., Obradovic N., Mancic L., Krstić Jelena, Mitrić Miodrag, Vlahović Branislav, Rašić Goran, Kosanovic D., Pavlović Vladimir B., "Structural investigation of mechanically activated ZnO powder" 648 (2015):971-979,
https://doi.org/10.1016/j.jallcom.2015.06.247 .
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