TY  - JOUR
AU  - Sredojević, Dušan
AU  - Vukoje, Ivana
AU  - Trpkov, Đorđe
AU  - Brothers, Edward N.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12995
AB  - In addition to providing a sustainable route to green alternative energy and chemical supplies from a cheap and abundant carbon source, recycling CO2 offers an excellent way to reduce net anthropogenic global CO2 emissions. This can be achieved via catalysis on 2D materials. These materials are atomically thin and have unique electrical and catalytic properties compared to bigger nanoparticles and conventional bulk catalysts, opening a new arena in catalysis. This paper examines the efficacy of hexagonal boron nitride (h-BN) lattices with vacancy defects for CO2 electroreduction (CO2RR). We conducted in-depth investigations on different CO2RR electrocatalytic reaction pathways on various h-BN vacancy sites using a computational hydrogen model (CHE). It was shown that CO binds to h-BN vacancies sufficiently to ensure additional electron transfer processes, leading to higher-order reduction products. For mono-atomic defects VN (removed nitrogen), the electrochemical path of (H+ + e−) pair transfers that would lead to the formation of methanol is most favorable with a limiting potential of 1.21 V. In contrast, the reaction pathways via VB (removed boron) imposes much higher thermodynamic barriers for the formation of all relevant species. With a divacancy VBN, the hydrogen evolution reaction (HER) would be the most probable process due to the low rate-determining barrier of 0.69 eV. On the tetravacancy defects VB3N the pathways toward the formation of both CH4 and CH3OH impose a limiting potential of 0.85 V. At the same time, the HER is suppressed by requiring much higher energy (2.15 eV). Modeling the edges of h-BN reveals that N-terminated zigzag conformation would impose the same limiting potential for the formation of methanol and methane (1.73 V), simultaneously suppressing the HER (3.47 V). At variance, the armchair conformation favors the HER, with a rate-determining barrier of 1.70 eV. Hence, according to our calculations, VB3N and VN are the most appropriate vacancy defects for catalyzing CO2 electroreduction reactions.
T2  - Physical Chemistry Chemical Physics
T1  - A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects
VL  - 26
IS  - 10
SP  - 8356
EP  - 8365
DO  - 10.1039/D3CP06186H
ER  - 

@article{
author = "Sredojević, Dušan and Vukoje, Ivana and Trpkov, Đorđe and Brothers, Edward N.",
year = "2024",
abstract = "In addition to providing a sustainable route to green alternative energy and chemical supplies from a cheap and abundant carbon source, recycling CO2 offers an excellent way to reduce net anthropogenic global CO2 emissions. This can be achieved via catalysis on 2D materials. These materials are atomically thin and have unique electrical and catalytic properties compared to bigger nanoparticles and conventional bulk catalysts, opening a new arena in catalysis. This paper examines the efficacy of hexagonal boron nitride (h-BN) lattices with vacancy defects for CO2 electroreduction (CO2RR). We conducted in-depth investigations on different CO2RR electrocatalytic reaction pathways on various h-BN vacancy sites using a computational hydrogen model (CHE). It was shown that CO binds to h-BN vacancies sufficiently to ensure additional electron transfer processes, leading to higher-order reduction products. For mono-atomic defects VN (removed nitrogen), the electrochemical path of (H+ + e−) pair transfers that would lead to the formation of methanol is most favorable with a limiting potential of 1.21 V. In contrast, the reaction pathways via VB (removed boron) imposes much higher thermodynamic barriers for the formation of all relevant species. With a divacancy VBN, the hydrogen evolution reaction (HER) would be the most probable process due to the low rate-determining barrier of 0.69 eV. On the tetravacancy defects VB3N the pathways toward the formation of both CH4 and CH3OH impose a limiting potential of 0.85 V. At the same time, the HER is suppressed by requiring much higher energy (2.15 eV). Modeling the edges of h-BN reveals that N-terminated zigzag conformation would impose the same limiting potential for the formation of methanol and methane (1.73 V), simultaneously suppressing the HER (3.47 V). At variance, the armchair conformation favors the HER, with a rate-determining barrier of 1.70 eV. Hence, according to our calculations, VB3N and VN are the most appropriate vacancy defects for catalyzing CO2 electroreduction reactions.",
journal = "Physical Chemistry Chemical Physics",
title = "A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects",
volume = "26",
number = "10",
pages = "8356-8365",
doi = "10.1039/D3CP06186H"
}

Sredojević, D., Vukoje, I., Trpkov, Đ.,& Brothers, E. N.. (2024). A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects. in Physical Chemistry Chemical Physics, 26(10), 8356-8365.
https://doi.org/10.1039/D3CP06186H

Sredojević D, Vukoje I, Trpkov Đ, Brothers EN. A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects. in Physical Chemistry Chemical Physics. 2024;26(10):8356-8365.
doi:10.1039/D3CP06186H .

Sredojević, Dušan, Vukoje, Ivana, Trpkov, Đorđe, Brothers, Edward N., "A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects" in Physical Chemistry Chemical Physics, 26, no. 10 (2024):8356-8365,
https://doi.org/10.1039/D3CP06186H . .

TY  - CONF
AU  - Đoković, Vladimir
AU  - Danilović, Danijela
AU  - Pajović, Jelena
AU  - Dojčilović, Radovan
AU  - Trpkov, Đorđe
AU  - Božanić, Dušan K.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12418
AB  - Interest in developing micro/nano motors (MNMs) increased rapidly in the last couple of years. These advanced systems can address critical challenges in manipulation of objects at small-scales. Micro/nano motors are capable to move controllably in fluids under the influence of various stimuli (thermal, magnetic, light, etc.) and perform specific operations, including propelling micromachines. Here we synthesized two types of hybrid Janus particles, Au-TiO2 and AgAg2S-TiO2, and tested them as possible light-driven micromotors. Light, as a versatile power source, allows non-invasive control of the motion of the motors with high spatial and temporal resolutions. Illumination induce asymmetric reactions on the two sides of the Janus particles, which can create the propulsion. To optimize the properties of the MNMs, we performed synchrotron radiation gas-phase photoemission spectroscopy (SR PES) of the free standing hybrid particles at synchrotron SOLEIL, France. SR PES provided an information about the valence level alignment of the components, possible hybrid states and dominant scattering processes.
C3  - SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts
T1  - Fabrication Hybrid Janus Nanoparticles and Their Application as Light-Driven Micromotors
SP  - 16
EP  - 16
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12418
ER  - 

@conference{
author = "Đoković, Vladimir and Danilović, Danijela and Pajović, Jelena and Dojčilović, Radovan and Trpkov, Đorđe and Božanić, Dušan K.",
year = "2023",
abstract = "Interest in developing micro/nano motors (MNMs) increased rapidly in the last couple of years. These advanced systems can address critical challenges in manipulation of objects at small-scales. Micro/nano motors are capable to move controllably in fluids under the influence of various stimuli (thermal, magnetic, light, etc.) and perform specific operations, including propelling micromachines. Here we synthesized two types of hybrid Janus particles, Au-TiO2 and AgAg2S-TiO2, and tested them as possible light-driven micromotors. Light, as a versatile power source, allows non-invasive control of the motion of the motors with high spatial and temporal resolutions. Illumination induce asymmetric reactions on the two sides of the Janus particles, which can create the propulsion. To optimize the properties of the MNMs, we performed synchrotron radiation gas-phase photoemission spectroscopy (SR PES) of the free standing hybrid particles at synchrotron SOLEIL, France. SR PES provided an information about the valence level alignment of the components, possible hybrid states and dominant scattering processes.",
journal = "SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts",
title = "Fabrication Hybrid Janus Nanoparticles and Their Application as Light-Driven Micromotors",
pages = "16-16",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12418"
}

Đoković, V., Danilović, D., Pajović, J., Dojčilović, R., Trpkov, Đ.,& Božanić, D. K.. (2023). Fabrication Hybrid Janus Nanoparticles and Their Application as Light-Driven Micromotors. in SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts, 16-16.
https://hdl.handle.net/21.15107/rcub_vinar_12418

Đoković V, Danilović D, Pajović J, Dojčilović R, Trpkov Đ, Božanić DK. Fabrication Hybrid Janus Nanoparticles and Their Application as Light-Driven Micromotors. in SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts. 2023;:16-16.
https://hdl.handle.net/21.15107/rcub_vinar_12418 .

Đoković, Vladimir, Danilović, Danijela, Pajović, Jelena, Dojčilović, Radovan, Trpkov, Đorđe, Božanić, Dušan K., "Fabrication Hybrid Janus Nanoparticles and Their Application as Light-Driven Micromotors" in SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts (2023):16-16,
https://hdl.handle.net/21.15107/rcub_vinar_12418 .

TY  - JOUR
AU  - Danilović, Danijela
AU  - Trpkov, Đorđe
AU  - Dojčilović, Radovan
AU  - Tošić, Dragana
AU  - Pajović, Jelena
AU  - Škipina, Blanka
AU  - Dudić, Duško
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12650
AB  - This article reports on photodielectric properties of hydrocolloids of TiO2  particles and Au/TiO2 hybrid particles of lateral dimension of ∼200 nm. Illumination of the colloids with visible light did not cause measurable changes in their electrical conductivity, while the application of UV (365 nm) light led to photoinduced increase in conductivity of up to 2%. The photogeneration of ions in water, regardless of the presence of the particles, makes a dominant contribution to the photoinduced increase in conductivity of the colloids
T2  - Contemporary Materials
T1  - Photodielectric characterization of light-driven Au/TiO2 nanomotors in liquid medium
T1  - Фотодиелектрична карактеризација светлосног погона Au/TiO2 наномотори у течном медију
VL  - 14
IS  - 1
SP  - 25
EP  - 29
DO  - 10.7251/COMEN2301025D
ER  - 

@article{
author = "Danilović, Danijela and Trpkov, Đorđe and Dojčilović, Radovan and Tošić, Dragana and Pajović, Jelena and Škipina, Blanka and Dudić, Duško",
year = "2023",
abstract = "This article reports on photodielectric properties of hydrocolloids of TiO2  particles and Au/TiO2 hybrid particles of lateral dimension of ∼200 nm. Illumination of the colloids with visible light did not cause measurable changes in their electrical conductivity, while the application of UV (365 nm) light led to photoinduced increase in conductivity of up to 2%. The photogeneration of ions in water, regardless of the presence of the particles, makes a dominant contribution to the photoinduced increase in conductivity of the colloids",
journal = "Contemporary Materials",
title = "Photodielectric characterization of light-driven Au/TiO2 nanomotors in liquid medium, Фотодиелектрична карактеризација светлосног погона Au/TiO2 наномотори у течном медију",
volume = "14",
number = "1",
pages = "25-29",
doi = "10.7251/COMEN2301025D"
}

Danilović, D., Trpkov, Đ., Dojčilović, R., Tošić, D., Pajović, J., Škipina, B.,& Dudić, D.. (2023). Photodielectric characterization of light-driven Au/TiO2 nanomotors in liquid medium. in Contemporary Materials, 14(1), 25-29.
https://doi.org/10.7251/COMEN2301025D

Danilović D, Trpkov Đ, Dojčilović R, Tošić D, Pajović J, Škipina B, Dudić D. Photodielectric characterization of light-driven Au/TiO2 nanomotors in liquid medium. in Contemporary Materials. 2023;14(1):25-29.
doi:10.7251/COMEN2301025D .

Danilović, Danijela, Trpkov, Đorđe, Dojčilović, Radovan, Tošić, Dragana, Pajović, Jelena, Škipina, Blanka, Dudić, Duško, "Photodielectric characterization of light-driven Au/TiO2 nanomotors in liquid medium" in Contemporary Materials, 14, no. 1 (2023):25-29,
https://doi.org/10.7251/COMEN2301025D . .

TY  - CONF
AU  - Trpkov, Đorđe
AU  - Sredojević, Dušan
AU  - Tošić, Dragana
AU  - Pajović, J.
AU  - Božanić, Dušan K.
AU  - Đoković, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11806
AB  - Graphene quantum dots, zero-dimensional form of graphene, have a band gap that can be controlled by changing their size, shape, edge morphology, number of layers etc. Moreover, they have various edge terminations that can be physically/chemically functionalized for numerous applications in nano electronics, biosensors, supercapacitors, and nanomedicine. In the present study, we hydrothermally synthesized nitrogen-doped graphene quantum dots (NGQD), using simple, fast synthetic route and eco-friendly chemicals, such as citric acid and urea (amine group-rich). The obtained NGQD were physically functionalized by L-phenylalanine, aromatic amino acid with interesting fluorescent properties. The hybrid NGQD-LPhe samples were characterized with UV/Vis, Raman, ATR Fourier transformed infra-red and photoluminescence (PL) spectroscopies, while their morphologies were studied by using atomic force microscopy. This work created a base for future investigations on graphene/biomolecules hybrids and their applications in fields of bioimaging and drug delivery. In addition, the experimental results were supported by DFT calculations of non-covalent stacking and hydrogen bonding interactions between NGQD and biomolecules.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Yellow fluorescent, water soluble N-doped graphene quantum dots: synthesis, photoluminescence and functionalization with L-Phenylalanine
SP  - 66
EP  - 66
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11806
ER  - 

@conference{
author = "Trpkov, Đorđe and Sredojević, Dušan and Tošić, Dragana and Pajović, J. and Božanić, Dušan K. and Đoković, Vladimir",
year = "2023",
abstract = "Graphene quantum dots, zero-dimensional form of graphene, have a band gap that can be controlled by changing their size, shape, edge morphology, number of layers etc. Moreover, they have various edge terminations that can be physically/chemically functionalized for numerous applications in nano electronics, biosensors, supercapacitors, and nanomedicine. In the present study, we hydrothermally synthesized nitrogen-doped graphene quantum dots (NGQD), using simple, fast synthetic route and eco-friendly chemicals, such as citric acid and urea (amine group-rich). The obtained NGQD were physically functionalized by L-phenylalanine, aromatic amino acid with interesting fluorescent properties. The hybrid NGQD-LPhe samples were characterized with UV/Vis, Raman, ATR Fourier transformed infra-red and photoluminescence (PL) spectroscopies, while their morphologies were studied by using atomic force microscopy. This work created a base for future investigations on graphene/biomolecules hybrids and their applications in fields of bioimaging and drug delivery. In addition, the experimental results were supported by DFT calculations of non-covalent stacking and hydrogen bonding interactions between NGQD and biomolecules.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Yellow fluorescent, water soluble N-doped graphene quantum dots: synthesis, photoluminescence and functionalization with L-Phenylalanine",
pages = "66-66",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11806"
}

Trpkov, Đ., Sredojević, D., Tošić, D., Pajović, J., Božanić, D. K.,& Đoković, V.. (2023). Yellow fluorescent, water soluble N-doped graphene quantum dots: synthesis, photoluminescence and functionalization with L-Phenylalanine. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 66-66.
https://hdl.handle.net/21.15107/rcub_vinar_11806

Trpkov Đ, Sredojević D, Tošić D, Pajović J, Božanić DK, Đoković V. Yellow fluorescent, water soluble N-doped graphene quantum dots: synthesis, photoluminescence and functionalization with L-Phenylalanine. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:66-66.
https://hdl.handle.net/21.15107/rcub_vinar_11806 .

Trpkov, Đorđe, Sredojević, Dušan, Tošić, Dragana, Pajović, J., Božanić, Dušan K., Đoković, Vladimir, "Yellow fluorescent, water soluble N-doped graphene quantum dots: synthesis, photoluminescence and functionalization with L-Phenylalanine" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):66-66,
https://hdl.handle.net/21.15107/rcub_vinar_11806 .

TY  - CONF
AU  - Tošić, Dragana
AU  - Dojčilović, R.
AU  - Božanić, D.
AU  - Trpkov, Đorđe
AU  - Đoković, Vladimir
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11807
AB  - Anthocyanins are water-soluble, non-toxic flavonoid pigments, which produce the blue, red and purple color of many plants. Color change of anthocyanin extracts is a direct consequence of the transformation of their chemical structure when exposed to different pH conditions. Optical properties investigated in UV-Vis absorption and PL spectra show a clear difference between anthocyanins in acidic and in alkaline environments. Chitosan, a natural-based, non-toxic and biodegradable polysaccharide, is chosen as an ideal matrix for nanocomposites. It is proven to be a good carrier for anthocyanins, because of its ability to entrap the indicator dyes and at the same time the ability to release anthocyanins when in contact with an acidic environment. In this research, we have developed anthocyanin-enhanced biopolymer indicator systems, which provide fast colorimetric response to alterations in pH levels of the environment. Transmittance spectra of nanocomposites show excellent light-blocking properties of the films. This opens up possibilities for advancement in future technology of smart biodegradable food packaging biomaterials. The availability of innovative and healthy materials reduces the need for using synthetic plastic in the modern food industry.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Anthocyanin-functionalized biopolymer films as pH-sensitive indicators
SP  - 69
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11807
ER  - 

@conference{
author = "Tošić, Dragana and Dojčilović, R. and Božanić, D. and Trpkov, Đorđe and Đoković, Vladimir",
year = "2023",
abstract = "Anthocyanins are water-soluble, non-toxic flavonoid pigments, which produce the blue, red and purple color of many plants. Color change of anthocyanin extracts is a direct consequence of the transformation of their chemical structure when exposed to different pH conditions. Optical properties investigated in UV-Vis absorption and PL spectra show a clear difference between anthocyanins in acidic and in alkaline environments. Chitosan, a natural-based, non-toxic and biodegradable polysaccharide, is chosen as an ideal matrix for nanocomposites. It is proven to be a good carrier for anthocyanins, because of its ability to entrap the indicator dyes and at the same time the ability to release anthocyanins when in contact with an acidic environment. In this research, we have developed anthocyanin-enhanced biopolymer indicator systems, which provide fast colorimetric response to alterations in pH levels of the environment. Transmittance spectra of nanocomposites show excellent light-blocking properties of the films. This opens up possibilities for advancement in future technology of smart biodegradable food packaging biomaterials. The availability of innovative and healthy materials reduces the need for using synthetic plastic in the modern food industry.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Anthocyanin-functionalized biopolymer films as pH-sensitive indicators",
pages = "69-69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11807"
}

Tošić, D., Dojčilović, R., Božanić, D., Trpkov, Đ.,& Đoković, V.. (2023). Anthocyanin-functionalized biopolymer films as pH-sensitive indicators. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 69-69.
https://hdl.handle.net/21.15107/rcub_vinar_11807

Tošić D, Dojčilović R, Božanić D, Trpkov Đ, Đoković V. Anthocyanin-functionalized biopolymer films as pH-sensitive indicators. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:69-69.
https://hdl.handle.net/21.15107/rcub_vinar_11807 .

Tošić, Dragana, Dojčilović, R., Božanić, D., Trpkov, Đorđe, Đoković, Vladimir, "Anthocyanin-functionalized biopolymer films as pH-sensitive indicators" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):69-69,
https://hdl.handle.net/21.15107/rcub_vinar_11807 .

TY  - CONF
AU  - Trpkov, Đorđe
AU  - Danilović, Danijela
AU  - Pajović, Jelena
AU  - Dojčilović, Radovan
AU  - Pavlović, V. B.
AU  - Sekulić, Milica
AU  - Božanić, Dušan K.
AU  - Đoković, Vladimir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10823
AB  - We report on hydrothermal synthesis of zinc oxide (ZnO) hexagonal microrods and microtubes. Zinc oxide seeds were deposited onto glass slides by dip coating and used as templates for hydrothermal growth of ZnO microcrystals. The process was carried out in an alkaline reaction medium with acetate and nitrate zinc precursors, using hexamethylene tetramine (HMT) as surfactant. The obtained ZnO microrods were successfully decorated with silver particles via dipping ZnO-containing glass slides in silver nitrate solution and subsequent UV irradiation (5 min). Zinc oxide and Ag/ZnO microparticles were characterized by SEM, EDS and XRD. The presented results are part of the larger concept of developing of anisotropic Ag/ZnO microrods for conversion of chemical to mechanical energy.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Fabrication of silver-decorated zinc oxide microrods by hydrothermal method
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10823
ER  - 

@conference{
author = "Trpkov, Đorđe and Danilović, Danijela and Pajović, Jelena and Dojčilović, Radovan and Pavlović, V. B. and Sekulić, Milica and Božanić, Dušan K. and Đoković, Vladimir",
year = "2022",
abstract = "We report on hydrothermal synthesis of zinc oxide (ZnO) hexagonal microrods and microtubes. Zinc oxide seeds were deposited onto glass slides by dip coating and used as templates for hydrothermal growth of ZnO microcrystals. The process was carried out in an alkaline reaction medium with acetate and nitrate zinc precursors, using hexamethylene tetramine (HMT) as surfactant. The obtained ZnO microrods were successfully decorated with silver particles via dipping ZnO-containing glass slides in silver nitrate solution and subsequent UV irradiation (5 min). Zinc oxide and Ag/ZnO microparticles were characterized by SEM, EDS and XRD. The presented results are part of the larger concept of developing of anisotropic Ag/ZnO microrods for conversion of chemical to mechanical energy.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Fabrication of silver-decorated zinc oxide microrods by hydrothermal method",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10823"
}

Trpkov, Đ., Danilović, D., Pajović, J., Dojčilović, R., Pavlović, V. B., Sekulić, M., Božanić, D. K.,& Đoković, V.. (2022). Fabrication of silver-decorated zinc oxide microrods by hydrothermal method. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 83.
https://hdl.handle.net/21.15107/rcub_vinar_10823

Trpkov Đ, Danilović D, Pajović J, Dojčilović R, Pavlović VB, Sekulić M, Božanić DK, Đoković V. Fabrication of silver-decorated zinc oxide microrods by hydrothermal method. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:83.
https://hdl.handle.net/21.15107/rcub_vinar_10823 .

Trpkov, Đorđe, Danilović, Danijela, Pajović, Jelena, Dojčilović, Radovan, Pavlović, V. B., Sekulić, Milica, Božanić, Dušan K., Đoković, Vladimir, "Fabrication of silver-decorated zinc oxide microrods by hydrothermal method" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):83,
https://hdl.handle.net/21.15107/rcub_vinar_10823 .

TY  - JOUR
AU  - Trpkov, Đorđe
AU  - Vinić, Milica
AU  - Dojčilović, Radovan
AU  - Tošić, Dragana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10347
AB  - Nitrogen-functionalized graphene quantum dots (N-GQDs) were synthesized by hydrothermal transformation of glycine precursors in glycerol. Functionalization of GQDs with nitrogen was confirmed with FTIR spectroscopy. Atomic force microscopy (AFM) analysis revealed that the thickness of the quantum dots is around similar to 1 nm while the lateral dimensions are in the range from 20 to 80 nm. N-GQDs exhibit strong fluorescence in the blue (420 nm) region and they are suitable for bioimaging applications.
T2  - Optical and Quantum Electronics
T1  - Fast, eco-friendly synthesis of blue luminescent nitrogen-doped graphene quantum dots in glycerol
VL  - 54
IS  - 6
SP  - 387
DO  - 10.1007/s11082-022-03754-0
ER  - 

@article{
author = "Trpkov, Đorđe and Vinić, Milica and Dojčilović, Radovan and Tošić, Dragana",
year = "2022",
abstract = "Nitrogen-functionalized graphene quantum dots (N-GQDs) were synthesized by hydrothermal transformation of glycine precursors in glycerol. Functionalization of GQDs with nitrogen was confirmed with FTIR spectroscopy. Atomic force microscopy (AFM) analysis revealed that the thickness of the quantum dots is around similar to 1 nm while the lateral dimensions are in the range from 20 to 80 nm. N-GQDs exhibit strong fluorescence in the blue (420 nm) region and they are suitable for bioimaging applications.",
journal = "Optical and Quantum Electronics",
title = "Fast, eco-friendly synthesis of blue luminescent nitrogen-doped graphene quantum dots in glycerol",
volume = "54",
number = "6",
pages = "387",
doi = "10.1007/s11082-022-03754-0"
}

Trpkov, Đ., Vinić, M., Dojčilović, R.,& Tošić, D.. (2022). Fast, eco-friendly synthesis of blue luminescent nitrogen-doped graphene quantum dots in glycerol. in Optical and Quantum Electronics, 54(6), 387.
https://doi.org/10.1007/s11082-022-03754-0

Trpkov Đ, Vinić M, Dojčilović R, Tošić D. Fast, eco-friendly synthesis of blue luminescent nitrogen-doped graphene quantum dots in glycerol. in Optical and Quantum Electronics. 2022;54(6):387.
doi:10.1007/s11082-022-03754-0 .

Trpkov, Đorđe, Vinić, Milica, Dojčilović, Radovan, Tošić, Dragana, "Fast, eco-friendly synthesis of blue luminescent nitrogen-doped graphene quantum dots in glycerol" in Optical and Quantum Electronics, 54, no. 6 (2022):387,
https://doi.org/10.1007/s11082-022-03754-0 . .

TY  - JOUR
AU  - Tadić, Marin
AU  - Trpkov, Đorđe
AU  - Kopanja, Lazar
AU  - Vojnović, Sandra
AU  - Panjan, Matjaž
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925838819312587
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8133
AB  - In this work, we present the magnetic and structural properties of α-Fe 2 O 3 nanoparticles synthesized by the hydrothermal synthesis method. XRD, FTIR and Raman spectroscopy indicate that the samples consist of single-phase α-Fe 2 O 3 nanoparticles. A microstructural analysis by TEM and SEM shows: (i) irregular nanoparticles (∼50 nm), (ii) plate-like nanoparticles (with thickness t∼10 nm and diameter d∼50–80 nm) and (iii) microsized ellipsoid 3D superstructures (with length l∼3.5 and diameter d∼1.5 μm) composed of nanosized building blocks (∼50 nm). We used circularity, elongation and convexity measures to quantitatively analyze the shape of the particles. Irregular hematite nanoparticles were synthesized using a water solution of ferric precursor and sodium acetate during the hydrothermal reaction (reaction conditions: T = 180 °C, t = 12 h). The same hydrothermal reaction temperature, reaction duration and ferric precursor (without sodium acetate) were used for synthesizing hematite ellipsoid 3D superstructures. Addition of urea and glycine surfactants in hydrothermal reaction resulted in the formation of nanoplate hematite particles. The role of these surfactants on the structure and morphology of the particles was also investigated. Magnetic measurements at the room temperature displayed a wide range of coercivities, from H C = 73 Oe for irregular nanoparticles, H C = 689 Oe for nanoplates to H C = 2688 Oe for hematite ellipsoid 3D superstructures. The measured coercivity for the ellipsoid superstructure was about 35 times higher than in the case of irregular hematite nanoparticles and about 4 times than the coercivity of hematite nanoplates. Magnetic properties of synthesized samples were related to their structure and morphology. We conclude that shape anisotropy influenced enhancement of the coercivity in hematite nanoplates whereas hematite ellipsoid 3D superstructure (nanoparticle clusters) induced the formation of multidomain magnetic structure and highest coercivity revealing its superior structure for enhanced magnetic properties. The synthesized hematite nanoparticle structures exhibit low cytotoxicity levels on the human lung fibroblasts (MRC5) cell line demonstrating a safe use of these nanoparticles for practical applications. © 2019 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Hydrothermal synthesis of hematite (α-Fe2O3) nanoparticle forms: Synthesis conditions, structure, particle shape analysis, cytotoxicity and magnetic properties
VL  - 792
SP  - 599
EP  - 609
DO  - 10.1016/j.jallcom.2019.03.414
ER  - 

@article{
author = "Tadić, Marin and Trpkov, Đorđe and Kopanja, Lazar and Vojnović, Sandra and Panjan, Matjaž",
year = "2019",
abstract = "In this work, we present the magnetic and structural properties of α-Fe 2 O 3 nanoparticles synthesized by the hydrothermal synthesis method. XRD, FTIR and Raman spectroscopy indicate that the samples consist of single-phase α-Fe 2 O 3 nanoparticles. A microstructural analysis by TEM and SEM shows: (i) irregular nanoparticles (∼50 nm), (ii) plate-like nanoparticles (with thickness t∼10 nm and diameter d∼50–80 nm) and (iii) microsized ellipsoid 3D superstructures (with length l∼3.5 and diameter d∼1.5 μm) composed of nanosized building blocks (∼50 nm). We used circularity, elongation and convexity measures to quantitatively analyze the shape of the particles. Irregular hematite nanoparticles were synthesized using a water solution of ferric precursor and sodium acetate during the hydrothermal reaction (reaction conditions: T = 180 °C, t = 12 h). The same hydrothermal reaction temperature, reaction duration and ferric precursor (without sodium acetate) were used for synthesizing hematite ellipsoid 3D superstructures. Addition of urea and glycine surfactants in hydrothermal reaction resulted in the formation of nanoplate hematite particles. The role of these surfactants on the structure and morphology of the particles was also investigated. Magnetic measurements at the room temperature displayed a wide range of coercivities, from H C = 73 Oe for irregular nanoparticles, H C = 689 Oe for nanoplates to H C = 2688 Oe for hematite ellipsoid 3D superstructures. The measured coercivity for the ellipsoid superstructure was about 35 times higher than in the case of irregular hematite nanoparticles and about 4 times than the coercivity of hematite nanoplates. Magnetic properties of synthesized samples were related to their structure and morphology. We conclude that shape anisotropy influenced enhancement of the coercivity in hematite nanoplates whereas hematite ellipsoid 3D superstructure (nanoparticle clusters) induced the formation of multidomain magnetic structure and highest coercivity revealing its superior structure for enhanced magnetic properties. The synthesized hematite nanoparticle structures exhibit low cytotoxicity levels on the human lung fibroblasts (MRC5) cell line demonstrating a safe use of these nanoparticles for practical applications. © 2019 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Hydrothermal synthesis of hematite (α-Fe2O3) nanoparticle forms: Synthesis conditions, structure, particle shape analysis, cytotoxicity and magnetic properties",
volume = "792",
pages = "599-609",
doi = "10.1016/j.jallcom.2019.03.414"
}

Tadić, M., Trpkov, Đ., Kopanja, L., Vojnović, S.,& Panjan, M.. (2019). Hydrothermal synthesis of hematite (α-Fe2O3) nanoparticle forms: Synthesis conditions, structure, particle shape analysis, cytotoxicity and magnetic properties. in Journal of Alloys and Compounds, 792, 599-609.
https://doi.org/10.1016/j.jallcom.2019.03.414

Tadić M, Trpkov Đ, Kopanja L, Vojnović S, Panjan M. Hydrothermal synthesis of hematite (α-Fe2O3) nanoparticle forms: Synthesis conditions, structure, particle shape analysis, cytotoxicity and magnetic properties. in Journal of Alloys and Compounds. 2019;792:599-609.
doi:10.1016/j.jallcom.2019.03.414 .

Tadić, Marin, Trpkov, Đorđe, Kopanja, Lazar, Vojnović, Sandra, Panjan, Matjaž, "Hydrothermal synthesis of hematite (α-Fe2O3) nanoparticle forms: Synthesis conditions, structure, particle shape analysis, cytotoxicity and magnetic properties" in Journal of Alloys and Compounds, 792 (2019):599-609,
https://doi.org/10.1016/j.jallcom.2019.03.414 . .

TY  - THES
AU  - Trpkov, Đorđe
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6999
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:20527/bdef:Content/download
UR  - https://plus.sr.cobiss.net/opac7/bib/51739407
UR  - http://nardus.mpn.gov.rs/123456789/11648
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8692
AB  - У овој докторској дисертацији описана је хидротермална синтеза наночестичног хематита (α-Fe2O3), као и карактеризација материјала, у сврху његове потенцијалне примене у различитим областима. Синтетисани узорци су карактерисани ренгеноструктурном анализом (XRDP), електронском микроскопијом (SEM и TEM), магнетометријом са вибрирајућим узорком (VSM) и вибрационом спектроскопијом (FTIR и Raman). Извршена је и математичка анализа морфологија честица, применом дескриптора облика на одабране ТЕМ слике узорака...
AB  - This doctoral dissertation presented hydrothermal synthesis and characterization of hematite (α-Fe2O3) nanoparticles, towards potential applications in differrent fields. Synthesized sample were characterized with X-ray powder diffraction method (XRDP). electrone microscopy (SEM and TEM), vibrating sample magnetometry (VSM) and vibrational spectroscopy methods (FTIR and Raman). Mathematical analysis of nanoparticle morphology was also conducted, applying shape descriptors on segmented TEM sample images...
PB  - Универзитет у Београду, Факултет за физичку хемију
T2  - Универзитет у Београду
T1  - Хидротермална синтеза наночестичног хематита, структурна, морфолошка и магнетна својства
UR  - https://hdl.handle.net/21.15107/rcub_nardus_11648
ER  - 

@phdthesis{
author = "Trpkov, Đorđe",
year = "2019",
abstract = "У овој докторској дисертацији описана је хидротермална синтеза наночестичног хематита (α-Fe2O3), као и карактеризација материјала, у сврху његове потенцијалне примене у различитим областима. Синтетисани узорци су карактерисани ренгеноструктурном анализом (XRDP), електронском микроскопијом (SEM и TEM), магнетометријом са вибрирајућим узорком (VSM) и вибрационом спектроскопијом (FTIR и Raman). Извршена је и математичка анализа морфологија честица, применом дескриптора облика на одабране ТЕМ слике узорака..., This doctoral dissertation presented hydrothermal synthesis and characterization of hematite (α-Fe2O3) nanoparticles, towards potential applications in differrent fields. Synthesized sample were characterized with X-ray powder diffraction method (XRDP). electrone microscopy (SEM and TEM), vibrating sample magnetometry (VSM) and vibrational spectroscopy methods (FTIR and Raman). Mathematical analysis of nanoparticle morphology was also conducted, applying shape descriptors on segmented TEM sample images...",
publisher = "Универзитет у Београду, Факултет за физичку хемију",
journal = "Универзитет у Београду",
title = "Хидротермална синтеза наночестичног хематита, структурна, морфолошка и магнетна својства",
url = "https://hdl.handle.net/21.15107/rcub_nardus_11648"
}

Trpkov, Đ.. (2019). Хидротермална синтеза наночестичног хематита, структурна, морфолошка и магнетна својства. in Универзитет у Београду
Универзитет у Београду, Факултет за физичку хемију..
https://hdl.handle.net/21.15107/rcub_nardus_11648

Trpkov Đ. Хидротермална синтеза наночестичног хематита, структурна, морфолошка и магнетна својства. in Универзитет у Београду. 2019;.
https://hdl.handle.net/21.15107/rcub_nardus_11648 .

Trpkov, Đorđe, "Хидротермална синтеза наночестичног хематита, структурна, морфолошка и магнетна својства" in Универзитет у Београду (2019),
https://hdl.handle.net/21.15107/rcub_nardus_11648 .

TY  - JOUR
AU  - Trpkov, Đorđe
AU  - Panjan, Matjaž
AU  - Kopanja, Lazar
AU  - Tadić, Marin
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0169433218317872
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7770
AB  - We report on glycine-free and glycine-assisted hydrothermal synthesis of microsized superstructures composed of self-assembled hematite nanoparticles. An X-ray powder diffraction measurements of the samples confirm good crystallization of the hematite nanoparticles with hydrothermal reaction time-dependent crystallite sizes in a range from ∼15 nm (45 h) to ∼26 nm (90 h). The FTIR and Raman spectroscopy confirm hematite structure, whereas TEM measurements reveal nanoparticle sub-units (subparticles). The computational analyses of particle shape show that the addition of glycine surfactant in hydrothermal reaction leads to more spherical shape of hematite hierarchical structures and smaller sizes. We found strong coercivity increases (up to ∼3 times) in the samples synthesized in the presence of glycine. The coercivity values from HC = 1305 Oe (mushroom-like shape synthesized by glycine-free hydrothermal reaction) to HC = 3725 Oe (sphere-like shape synthesized by glycine-assisted hydrothermal reaction) were obtained at 300 K. These results and their comparison with other described in the literature (e.g. bulk, wires, urchin-like, rods, tubes, plates, star-like, dendrites, platelets, irregular, nanocolumns, spindles, disks hematites, etc.) reveal that the hematite superstructures possess good magnetic properties. We propose that the glycine, oriented subparticles, exchange and dipole-dipole interactions may play an important role in the development of magnetic properties.
T2  - Applied Surface Science
T1  - Hydrothermal synthesis, morphology, magnetic properties and self-assembly of hierarchical α-Fe2O3 (hematite) mushroom-, cube- and sphere-like superstructures
VL  - 457
SP  - 427
EP  - 438
DO  - 10.1016/j.apsusc.2018.06.224
ER  - 

@article{
author = "Trpkov, Đorđe and Panjan, Matjaž and Kopanja, Lazar and Tadić, Marin",
year = "2018",
abstract = "We report on glycine-free and glycine-assisted hydrothermal synthesis of microsized superstructures composed of self-assembled hematite nanoparticles. An X-ray powder diffraction measurements of the samples confirm good crystallization of the hematite nanoparticles with hydrothermal reaction time-dependent crystallite sizes in a range from ∼15 nm (45 h) to ∼26 nm (90 h). The FTIR and Raman spectroscopy confirm hematite structure, whereas TEM measurements reveal nanoparticle sub-units (subparticles). The computational analyses of particle shape show that the addition of glycine surfactant in hydrothermal reaction leads to more spherical shape of hematite hierarchical structures and smaller sizes. We found strong coercivity increases (up to ∼3 times) in the samples synthesized in the presence of glycine. The coercivity values from HC = 1305 Oe (mushroom-like shape synthesized by glycine-free hydrothermal reaction) to HC = 3725 Oe (sphere-like shape synthesized by glycine-assisted hydrothermal reaction) were obtained at 300 K. These results and their comparison with other described in the literature (e.g. bulk, wires, urchin-like, rods, tubes, plates, star-like, dendrites, platelets, irregular, nanocolumns, spindles, disks hematites, etc.) reveal that the hematite superstructures possess good magnetic properties. We propose that the glycine, oriented subparticles, exchange and dipole-dipole interactions may play an important role in the development of magnetic properties.",
journal = "Applied Surface Science",
title = "Hydrothermal synthesis, morphology, magnetic properties and self-assembly of hierarchical α-Fe2O3 (hematite) mushroom-, cube- and sphere-like superstructures",
volume = "457",
pages = "427-438",
doi = "10.1016/j.apsusc.2018.06.224"
}

Trpkov, Đ., Panjan, M., Kopanja, L.,& Tadić, M.. (2018). Hydrothermal synthesis, morphology, magnetic properties and self-assembly of hierarchical α-Fe2O3 (hematite) mushroom-, cube- and sphere-like superstructures. in Applied Surface Science, 457, 427-438.
https://doi.org/10.1016/j.apsusc.2018.06.224

Trpkov Đ, Panjan M, Kopanja L, Tadić M. Hydrothermal synthesis, morphology, magnetic properties and self-assembly of hierarchical α-Fe2O3 (hematite) mushroom-, cube- and sphere-like superstructures. in Applied Surface Science. 2018;457:427-438.
doi:10.1016/j.apsusc.2018.06.224 .

Trpkov, Đorđe, Panjan, Matjaž, Kopanja, Lazar, Tadić, Marin, "Hydrothermal synthesis, morphology, magnetic properties and self-assembly of hierarchical α-Fe2O3 (hematite) mushroom-, cube- and sphere-like superstructures" in Applied Surface Science, 457 (2018):427-438,
https://doi.org/10.1016/j.apsusc.2018.06.224 . .

TY  - JOUR
AU  - Cvetićanin, Jelena M.
AU  - Koteski, Vasil J.
AU  - Belošević-Čavor, Jelena
AU  - Radosavljević, Aleksandra
AU  - Kačarević-Popović, Zorica M.
AU  - Trpkov, Đorđe
AU  - Aćimović, Danka D.
AU  - Rogić Miladinović, Zorana
AU  - Cindrić, Mario
AU  - Nešković, Olivera M.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5207
AB  - The aim of this study is to evaluate the size and stability of radiolytically produced silver clusters. The clusters obtained by the gamma irradiation of a mixture of a silver salt and polyvinyl alcohol (PVA) were studied both theoretically and by mass spectrometry. MALDI TOF mass spectrometry of the Ag-n clusters showed the presence of clusters containing between 5 and 29 atoms. Both the theoretical and experimental results of this paper show that the most stable clusters are small clusters with an odd number of atoms. The stability of these clusters is correlated with the clusters electronic configuration. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Vacuum
T1  - MALDI TOF and theoretical investigation of silver clusters obtained by gamma irradiation
VL  - 89
IS  - SI
SP  - 47
EP  - 52
DO  - 10.1016/j.vacuum.2012.08.016
ER  - 

@article{
author = "Cvetićanin, Jelena M. and Koteski, Vasil J. and Belošević-Čavor, Jelena and Radosavljević, Aleksandra and Kačarević-Popović, Zorica M. and Trpkov, Đorđe and Aćimović, Danka D. and Rogić Miladinović, Zorana and Cindrić, Mario and Nešković, Olivera M.",
year = "2013",
abstract = "The aim of this study is to evaluate the size and stability of radiolytically produced silver clusters. The clusters obtained by the gamma irradiation of a mixture of a silver salt and polyvinyl alcohol (PVA) were studied both theoretically and by mass spectrometry. MALDI TOF mass spectrometry of the Ag-n clusters showed the presence of clusters containing between 5 and 29 atoms. Both the theoretical and experimental results of this paper show that the most stable clusters are small clusters with an odd number of atoms. The stability of these clusters is correlated with the clusters electronic configuration. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Vacuum",
title = "MALDI TOF and theoretical investigation of silver clusters obtained by gamma irradiation",
volume = "89",
number = "SI",
pages = "47-52",
doi = "10.1016/j.vacuum.2012.08.016"
}

Cvetićanin, J. M., Koteski, V. J., Belošević-Čavor, J., Radosavljević, A., Kačarević-Popović, Z. M., Trpkov, Đ., Aćimović, D. D., Rogić Miladinović, Z., Cindrić, M.,& Nešković, O. M.. (2013). MALDI TOF and theoretical investigation of silver clusters obtained by gamma irradiation. in Vacuum, 89(SI), 47-52.
https://doi.org/10.1016/j.vacuum.2012.08.016

Cvetićanin JM, Koteski VJ, Belošević-Čavor J, Radosavljević A, Kačarević-Popović ZM, Trpkov Đ, Aćimović DD, Rogić Miladinović Z, Cindrić M, Nešković OM. MALDI TOF and theoretical investigation of silver clusters obtained by gamma irradiation. in Vacuum. 2013;89(SI):47-52.
doi:10.1016/j.vacuum.2012.08.016 .

Cvetićanin, Jelena M., Koteski, Vasil J., Belošević-Čavor, Jelena, Radosavljević, Aleksandra, Kačarević-Popović, Zorica M., Trpkov, Đorđe, Aćimović, Danka D., Rogić Miladinović, Zorana, Cindrić, Mario, Nešković, Olivera M., "MALDI TOF and theoretical investigation of silver clusters obtained by gamma irradiation" in Vacuum, 89, no. SI (2013):47-52,
https://doi.org/10.1016/j.vacuum.2012.08.016 . .

TY  - CONF
AU  - Trpkov, Đorđe
AU  - Rogić Miladinović, Zorana
AU  - Aćimović, Danka D.
AU  - Cvetićanin, Jelena M.
AU  - Rakočević, Zlatko Lj.
AU  - Nešković, Olivera M.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9270
AB  - A primer is a strand of nucleic acid that serves as a starting point for DNA
synthesis. DNA, as a large molecule, is very difficult for analysis by means of mass
spectrometry. However, primer, as a short sequence of nucleic acid, is much more
convinient for e.g. MALDI TOF MS analysis. Mass spectrometric experiment
resulted in quality MALDI TOF spectra of 3 primers. Compound 3-HPA (3-
hydroxypicolinic acid) showed the best results as matrix. AFM studies were also
conducted, for both pure primer samples and hybrids of primer molecule with
single wall carbon nanotubes (SWNT). Thus, obtained functionalisation of SWNT
with DNA primers was confirmed by AFM imaging. AFM images clearly showed
wrapping of DNA structures around nanotube „template“. Functionalisation of
SWNT is very important for potential applications of nanotubes in biomedical
field. MALDI TOF mass spectrometry, in combination with AFM imaging, proved
its great potential in analysis of short DNA sequences, and indicated the possibility
of investigating more complex DNA structures.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry
T1  - MALDI TOF and AFM studies of DNA/SWNT hybrids
VL  - 1
SP  - 125
EP  - 127
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9270
ER  - 

@conference{
author = "Trpkov, Đorđe and Rogić Miladinović, Zorana and Aćimović, Danka D. and Cvetićanin, Jelena M. and Rakočević, Zlatko Lj. and Nešković, Olivera M.",
year = "2012",
abstract = "A primer is a strand of nucleic acid that serves as a starting point for DNA
synthesis. DNA, as a large molecule, is very difficult for analysis by means of mass
spectrometry. However, primer, as a short sequence of nucleic acid, is much more
convinient for e.g. MALDI TOF MS analysis. Mass spectrometric experiment
resulted in quality MALDI TOF spectra of 3 primers. Compound 3-HPA (3-
hydroxypicolinic acid) showed the best results as matrix. AFM studies were also
conducted, for both pure primer samples and hybrids of primer molecule with
single wall carbon nanotubes (SWNT). Thus, obtained functionalisation of SWNT
with DNA primers was confirmed by AFM imaging. AFM images clearly showed
wrapping of DNA structures around nanotube „template“. Functionalisation of
SWNT is very important for potential applications of nanotubes in biomedical
field. MALDI TOF mass spectrometry, in combination with AFM imaging, proved
its great potential in analysis of short DNA sequences, and indicated the possibility
of investigating more complex DNA structures.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry",
title = "MALDI TOF and AFM studies of DNA/SWNT hybrids",
volume = "1",
pages = "125-127",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9270"
}

Trpkov, Đ., Rogić Miladinović, Z., Aćimović, D. D., Cvetićanin, J. M., Rakočević, Z. Lj.,& Nešković, O. M.. (2012). MALDI TOF and AFM studies of DNA/SWNT hybrids. in Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 125-127.
https://hdl.handle.net/21.15107/rcub_vinar_9270

Trpkov Đ, Rogić Miladinović Z, Aćimović DD, Cvetićanin JM, Rakočević ZL, Nešković OM. MALDI TOF and AFM studies of DNA/SWNT hybrids. in Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry. 2012;1:125-127.
https://hdl.handle.net/21.15107/rcub_vinar_9270 .

Trpkov, Đorđe, Rogić Miladinović, Zorana, Aćimović, Danka D., Cvetićanin, Jelena M., Rakočević, Zlatko Lj., Nešković, Olivera M., "MALDI TOF and AFM studies of DNA/SWNT hybrids" in Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry, 1 (2012):125-127,
https://hdl.handle.net/21.15107/rcub_vinar_9270 .

TY  - CONF
AU  - Rogić Miladinović, Zorana
AU  - Aćimović, D.
AU  - Trpkov, Đorđe
AU  - Cvetićanin, Jelena
AU  - Bibić, Nataša
AU  - Rakočević, Zlatko
AU  - Nešković, Olivera M.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12404
AB  - Collagens, one of the most abundant on the Earth, are family of proteins which constitute the basis of connective tissue (extracellular matrix) in multicellular organisms. We used collagen type II from bovine Achilles tendon. In further work, collagen has been studied by transmission electron microscopy (TEM) and atomic force microscopy (AFM). Using TEM we successfully obtained images of collagen and whole collagen fibrils. Using AFM we captured images of whole collagen as well as images of fragments from collagenase-treated collagen (it was digested with collagenase from Clostridium histolycium). AFM images of collagenase-treated collagen showed many fibrils grouping into large bundles – collagen fiber. Based on obtained images we studied surface morphology, shape and length of fragments from collagenase-treated collagen.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - Collagen Structure and Morphology Analysis by TEM and AFM
SP  - 112
EP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12404
ER  - 

@conference{
author = "Rogić Miladinović, Zorana and Aćimović, D. and Trpkov, Đorđe and Cvetićanin, Jelena and Bibić, Nataša and Rakočević, Zlatko and Nešković, Olivera M.",
year = "2012",
abstract = "Collagens, one of the most abundant on the Earth, are family of proteins which constitute the basis of connective tissue (extracellular matrix) in multicellular organisms. We used collagen type II from bovine Achilles tendon. In further work, collagen has been studied by transmission electron microscopy (TEM) and atomic force microscopy (AFM). Using TEM we successfully obtained images of collagen and whole collagen fibrils. Using AFM we captured images of whole collagen as well as images of fragments from collagenase-treated collagen (it was digested with collagenase from Clostridium histolycium). AFM images of collagenase-treated collagen showed many fibrils grouping into large bundles – collagen fiber. Based on obtained images we studied surface morphology, shape and length of fragments from collagenase-treated collagen.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "Collagen Structure and Morphology Analysis by TEM and AFM",
pages = "112-112",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12404"
}

Rogić Miladinović, Z., Aćimović, D., Trpkov, Đ., Cvetićanin, J., Bibić, N., Rakočević, Z.,& Nešković, O. M.. (2012). Collagen Structure and Morphology Analysis by TEM and AFM. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 112-112.
https://hdl.handle.net/21.15107/rcub_vinar_12404

Rogić Miladinović Z, Aćimović D, Trpkov Đ, Cvetićanin J, Bibić N, Rakočević Z, Nešković OM. Collagen Structure and Morphology Analysis by TEM and AFM. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:112-112.
https://hdl.handle.net/21.15107/rcub_vinar_12404 .

Rogić Miladinović, Zorana, Aćimović, D., Trpkov, Đorđe, Cvetićanin, Jelena, Bibić, Nataša, Rakočević, Zlatko, Nešković, Olivera M., "Collagen Structure and Morphology Analysis by TEM and AFM" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):112-112,
https://hdl.handle.net/21.15107/rcub_vinar_12404 .

TY  - CONF
AU  - Đorđević, Aleksandar
AU  - Seke, Mariana
AU  - Trpkov, Đorđe
AU  - Cvetićanin, Jelena
AU  - Rogić Miladinović, Zorana
AU  - Aćimović, Danka
AU  - Demajo, Miroslav
AU  - Nešković, Olivera
AU  - Rakočević, Zlatko
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12409
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - 3rd Workshop Specific Methods for Food Safety and Quality : Proceedings
T1  - MALDI TOF and AFM study of Doxorubicin-Fullerenol Nanocomposite
SP  - 34
EP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12409
ER  - 

@conference{
author = "Đorđević, Aleksandar and Seke, Mariana and Trpkov, Đorđe and Cvetićanin, Jelena and Rogić Miladinović, Zorana and Aćimović, Danka and Demajo, Miroslav and Nešković, Olivera and Rakočević, Zlatko",
year = "2012",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "3rd Workshop Specific Methods for Food Safety and Quality : Proceedings",
title = "MALDI TOF and AFM study of Doxorubicin-Fullerenol Nanocomposite",
pages = "34-38",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12409"
}

Đorđević, A., Seke, M., Trpkov, Đ., Cvetićanin, J., Rogić Miladinović, Z., Aćimović, D., Demajo, M., Nešković, O.,& Rakočević, Z.. (2012). MALDI TOF and AFM study of Doxorubicin-Fullerenol Nanocomposite. in 3rd Workshop Specific Methods for Food Safety and Quality : Proceedings
Belgrade : Vinča Institute of Nuclear Sciences., 34-38.
https://hdl.handle.net/21.15107/rcub_vinar_12409

Đorđević A, Seke M, Trpkov Đ, Cvetićanin J, Rogić Miladinović Z, Aćimović D, Demajo M, Nešković O, Rakočević Z. MALDI TOF and AFM study of Doxorubicin-Fullerenol Nanocomposite. in 3rd Workshop Specific Methods for Food Safety and Quality : Proceedings. 2012;:34-38.
https://hdl.handle.net/21.15107/rcub_vinar_12409 .

Đorđević, Aleksandar, Seke, Mariana, Trpkov, Đorđe, Cvetićanin, Jelena, Rogić Miladinović, Zorana, Aćimović, Danka, Demajo, Miroslav, Nešković, Olivera, Rakočević, Zlatko, "MALDI TOF and AFM study of Doxorubicin-Fullerenol Nanocomposite" in 3rd Workshop Specific Methods for Food Safety and Quality : Proceedings (2012):34-38,
https://hdl.handle.net/21.15107/rcub_vinar_12409 .

TY  - CONF
AU  - Aćimović, D.
AU  - Rogić Miladinović, Zorana
AU  - Cvetićanin, Jelena
AU  - Trpkov, Đorđe
AU  - Nešković, Olivera M.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12403
AB  - Collagen is the most frequently occuring fibrillar protein in mammals, which can be found in cartilage, tendon, bone, ligament, skin, etc. The structure of collagen is based on a complicated helix structure of single chains of amino acids (most abundant is glicine-Gly, proline-Pro and hydroxyproline-Hyp) which are connected by hydrogen bonds. We tried to establish MALDI method to get better resolution of collagen’s mass spectra. Digested collagen (type II from bovine Achilles tendon which was digested with collagenase from Clostridium histolycium) has been analysed on MALDI-TOF MS in order to find peptide’s fragments that are characteristic for collagen. In mass spetra we found peaks of peptides, which is highly indicative for collagen (GlyPro-Hyp, Gly-Pro-Asp, Gly-Pro-Glu ect.) We hope that it should be possible to obtain MS analysis and structure characterization of collagen by MALDI-TOF/TOF in future.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - MALDI TOF Mass Spectrometry Characterization of Collagen
SP  - 112
EP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12403
ER  - 

@conference{
author = "Aćimović, D. and Rogić Miladinović, Zorana and Cvetićanin, Jelena and Trpkov, Đorđe and Nešković, Olivera M.",
year = "2012",
abstract = "Collagen is the most frequently occuring fibrillar protein in mammals, which can be found in cartilage, tendon, bone, ligament, skin, etc. The structure of collagen is based on a complicated helix structure of single chains of amino acids (most abundant is glicine-Gly, proline-Pro and hydroxyproline-Hyp) which are connected by hydrogen bonds. We tried to establish MALDI method to get better resolution of collagen’s mass spectra. Digested collagen (type II from bovine Achilles tendon which was digested with collagenase from Clostridium histolycium) has been analysed on MALDI-TOF MS in order to find peptide’s fragments that are characteristic for collagen. In mass spetra we found peaks of peptides, which is highly indicative for collagen (GlyPro-Hyp, Gly-Pro-Asp, Gly-Pro-Glu ect.) We hope that it should be possible to obtain MS analysis and structure characterization of collagen by MALDI-TOF/TOF in future.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "MALDI TOF Mass Spectrometry Characterization of Collagen",
pages = "112-112",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12403"
}

Aćimović, D., Rogić Miladinović, Z., Cvetićanin, J., Trpkov, Đ.,& Nešković, O. M.. (2012). MALDI TOF Mass Spectrometry Characterization of Collagen. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 112-112.
https://hdl.handle.net/21.15107/rcub_vinar_12403

Aćimović D, Rogić Miladinović Z, Cvetićanin J, Trpkov Đ, Nešković OM. MALDI TOF Mass Spectrometry Characterization of Collagen. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:112-112.
https://hdl.handle.net/21.15107/rcub_vinar_12403 .

Aćimović, D., Rogić Miladinović, Zorana, Cvetićanin, Jelena, Trpkov, Đorđe, Nešković, Olivera M., "MALDI TOF Mass Spectrometry Characterization of Collagen" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):112-112,
https://hdl.handle.net/21.15107/rcub_vinar_12403 .

TY  - CONF
AU  - Nešković, Olivera M.
AU  - Rakočević, Zlatko
AU  - Bibić, Nataša
AU  - Cvetićanin, Jelena
AU  - Trpkov, Đorđe
AU  - Rogić, Zorana
AU  - Vlatković, Danka
PY  - 2011
UR  - http://www.ceramic-society.rs/wp-content/uploads/2018/11/Book-of-Abstracts-2011.pdf
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12402
AB  - Bone is composed of two phases. The organic phase is made of collagen fibrils assembled in broad fibers acting as a template for mineralization. The mineral phase comprises hydroxyapatite (HAP) crystals grown between and inside the collagen fibers. We have developed a material using functionalized carbon nanotubes, carbon fibers and glasy carbon as scaffold to initiate in vitro mineralization. Mentioned carbon materials are functionalized with carboxylic groups prior to decorating. All samples were dispersed in ultra-pure water and incubated for 2 weeks in a synthetic body fluid with dispersed HAP, in order to induce the calcification of the functionalized carbon materials. Atomic force microscopy (AFM) and transmision electron microscopy (TEM) showed that Ca2+ and PO4 3- ions were deposited as round-shaped nodules. Raman spectroscopic studies confirmed the HAP formation, and image analysis made on TEM pictures showed that HAP were packed around and inside the carbon materials together. All three types of investigated carbon materials leading to successful calcification of collagen. This suggests that it takes the presence of carbon materials to prevent it from calcification of collagen, independent of the structures of the material.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - 1CSCS-2011 : 1st Conference of the Serbian Ceramic Materials : program and the book of abstracts; March 17-18, Belgrade
T1  - The calcification of collagen by HAP functionalized carbon materials
SP  - 50
EP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12402
ER  - 

@conference{
author = "Nešković, Olivera M. and Rakočević, Zlatko and Bibić, Nataša and Cvetićanin, Jelena and Trpkov, Đorđe and Rogić, Zorana and Vlatković, Danka",
year = "2011",
abstract = "Bone is composed of two phases. The organic phase is made of collagen fibrils assembled in broad fibers acting as a template for mineralization. The mineral phase comprises hydroxyapatite (HAP) crystals grown between and inside the collagen fibers. We have developed a material using functionalized carbon nanotubes, carbon fibers and glasy carbon as scaffold to initiate in vitro mineralization. Mentioned carbon materials are functionalized with carboxylic groups prior to decorating. All samples were dispersed in ultra-pure water and incubated for 2 weeks in a synthetic body fluid with dispersed HAP, in order to induce the calcification of the functionalized carbon materials. Atomic force microscopy (AFM) and transmision electron microscopy (TEM) showed that Ca2+ and PO4 3- ions were deposited as round-shaped nodules. Raman spectroscopic studies confirmed the HAP formation, and image analysis made on TEM pictures showed that HAP were packed around and inside the carbon materials together. All three types of investigated carbon materials leading to successful calcification of collagen. This suggests that it takes the presence of carbon materials to prevent it from calcification of collagen, independent of the structures of the material.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "1CSCS-2011 : 1st Conference of the Serbian Ceramic Materials : program and the book of abstracts; March 17-18, Belgrade",
title = "The calcification of collagen by HAP functionalized carbon materials",
pages = "50-50",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12402"
}

Nešković, O. M., Rakočević, Z., Bibić, N., Cvetićanin, J., Trpkov, Đ., Rogić, Z.,& Vlatković, D.. (2011). The calcification of collagen by HAP functionalized carbon materials. in 1CSCS-2011 : 1st Conference of the Serbian Ceramic Materials : program and the book of abstracts; March 17-18, Belgrade
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 50-50.
https://hdl.handle.net/21.15107/rcub_vinar_12402

Nešković OM, Rakočević Z, Bibić N, Cvetićanin J, Trpkov Đ, Rogić Z, Vlatković D. The calcification of collagen by HAP functionalized carbon materials. in 1CSCS-2011 : 1st Conference of the Serbian Ceramic Materials : program and the book of abstracts; March 17-18, Belgrade. 2011;:50-50.
https://hdl.handle.net/21.15107/rcub_vinar_12402 .

Nešković, Olivera M., Rakočević, Zlatko, Bibić, Nataša, Cvetićanin, Jelena, Trpkov, Đorđe, Rogić, Zorana, Vlatković, Danka, "The calcification of collagen by HAP functionalized carbon materials" in 1CSCS-2011 : 1st Conference of the Serbian Ceramic Materials : program and the book of abstracts; March 17-18, Belgrade (2011):50-50,
https://hdl.handle.net/21.15107/rcub_vinar_12402 .

TY  - JOUR
AU  - Đorđević, Aleksandar N.
AU  - Ajdinovic, B.
AU  - Dopudja, M.
AU  - Trajkovic, S.
AU  - Milovanović, Z.
AU  - Maksin, Tatjana N.
AU  - Nešković, Olivera M.
AU  - Bogdanović, Višnja V.
AU  - Trpkov, Đorđe
AU  - Cvetićanin, Jelena M.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4282
AB  - In this study we performed the dynamic and static scintigraphy of the domestic dog, using the newly synthesized radiopharmaceutical, [Tc-99m(CO)(3)(H2O)(3)]-C-60(OH)(22-24). In the current study, an advanced one-step method for the functionalization of fullerenol by Tc-99m is described. Optical properties of as-prepared samples and the mechanism responsible for the functionalization were investigated using UV-VIS and FTIR spectroscopy, respectively. Also, the presence of the Tc complex on fullerenol was confirmed by using the energy dispersive X-ray spectroscopy, HPLC and MALDI TOF techniques. This simple and effective method of producing a new radiopharmaceutical is of interest not only for its application in various areas of technology and biology, but also for investigating its potential use in radiation technology for nanoengineering of materials. With dynamic scintigraphy, performed during 30 minutes (120 frames, 15 sec per frame), we obtained ratios of heart, liver and spleen counts: 222/249/168; 178/320/217; 120/348/239 respectively. By static scintigraphy after 1 hour, we detected the activity in heart, liver, spleen and intestines. After 4 hours, the radiopharmaceutical activity was detected in salivary glands. The detection after 21 hours showed the activity in kidneys and urinary bladder, while the activity in intestines was absent. After 24 hours, we detected the activity in liver, spleen, kidneys and urinary bladder. Pharmacokinetic investigations performed in this study are of key interest for the further fullerenol in vivo research.
T2  - Digest Journal of Nanomaterials and Biostructures
T1  - Scintigraphy of the Domestic Dog Using [Tc-99m(Co)(3)(H2o)(3)]-C-60(Oh)(22-24)
VL  - 6
IS  - 1
SP  - 99
EP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_vinar_4282
ER  - 

@article{
author = "Đorđević, Aleksandar N. and Ajdinovic, B. and Dopudja, M. and Trajkovic, S. and Milovanović, Z. and Maksin, Tatjana N. and Nešković, Olivera M. and Bogdanović, Višnja V. and Trpkov, Đorđe and Cvetićanin, Jelena M.",
year = "2011",
abstract = "In this study we performed the dynamic and static scintigraphy of the domestic dog, using the newly synthesized radiopharmaceutical, [Tc-99m(CO)(3)(H2O)(3)]-C-60(OH)(22-24). In the current study, an advanced one-step method for the functionalization of fullerenol by Tc-99m is described. Optical properties of as-prepared samples and the mechanism responsible for the functionalization were investigated using UV-VIS and FTIR spectroscopy, respectively. Also, the presence of the Tc complex on fullerenol was confirmed by using the energy dispersive X-ray spectroscopy, HPLC and MALDI TOF techniques. This simple and effective method of producing a new radiopharmaceutical is of interest not only for its application in various areas of technology and biology, but also for investigating its potential use in radiation technology for nanoengineering of materials. With dynamic scintigraphy, performed during 30 minutes (120 frames, 15 sec per frame), we obtained ratios of heart, liver and spleen counts: 222/249/168; 178/320/217; 120/348/239 respectively. By static scintigraphy after 1 hour, we detected the activity in heart, liver, spleen and intestines. After 4 hours, the radiopharmaceutical activity was detected in salivary glands. The detection after 21 hours showed the activity in kidneys and urinary bladder, while the activity in intestines was absent. After 24 hours, we detected the activity in liver, spleen, kidneys and urinary bladder. Pharmacokinetic investigations performed in this study are of key interest for the further fullerenol in vivo research.",
journal = "Digest Journal of Nanomaterials and Biostructures",
title = "Scintigraphy of the Domestic Dog Using [Tc-99m(Co)(3)(H2o)(3)]-C-60(Oh)(22-24)",
volume = "6",
number = "1",
pages = "99-106",
url = "https://hdl.handle.net/21.15107/rcub_vinar_4282"
}

Đorđević, A. N., Ajdinovic, B., Dopudja, M., Trajkovic, S., Milovanović, Z., Maksin, T. N., Nešković, O. M., Bogdanović, V. V., Trpkov, Đ.,& Cvetićanin, J. M.. (2011). Scintigraphy of the Domestic Dog Using [Tc-99m(Co)(3)(H2o)(3)]-C-60(Oh)(22-24). in Digest Journal of Nanomaterials and Biostructures, 6(1), 99-106.
https://hdl.handle.net/21.15107/rcub_vinar_4282

Đorđević AN, Ajdinovic B, Dopudja M, Trajkovic S, Milovanović Z, Maksin TN, Nešković OM, Bogdanović VV, Trpkov Đ, Cvetićanin JM. Scintigraphy of the Domestic Dog Using [Tc-99m(Co)(3)(H2o)(3)]-C-60(Oh)(22-24). in Digest Journal of Nanomaterials and Biostructures. 2011;6(1):99-106.
https://hdl.handle.net/21.15107/rcub_vinar_4282 .

Đorđević, Aleksandar N., Ajdinovic, B., Dopudja, M., Trajkovic, S., Milovanović, Z., Maksin, Tatjana N., Nešković, Olivera M., Bogdanović, Višnja V., Trpkov, Đorđe, Cvetićanin, Jelena M., "Scintigraphy of the Domestic Dog Using [Tc-99m(Co)(3)(H2o)(3)]-C-60(Oh)(22-24)" in Digest Journal of Nanomaterials and Biostructures, 6, no. 1 (2011):99-106,
https://hdl.handle.net/21.15107/rcub_vinar_4282 .

TY  - JOUR
AU  - Demajo, Miroslav
AU  - Cvetićanin, Jelena M.
AU  - Stoiljković, Milovan
AU  - Trpkov, Đorđe
AU  - Andrić, Velibor
AU  - Onjia, Antonije E.
AU  - Nešković, Olivera M.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4664
AB  - In this study, we analysed pellets from long-eared owls (Asio otus) collected from four localities in Belgrade (Serbia). The pellets contained the remains of prey, namely voles (Arvicola terrestris) and field mice (Apodemus agrarius). The concentrations of 14 elements (Ca, P, Mg, Na, K, Fe, Zn, Sr, Ba, Mn, Ti, Cu, Si, B) were evaluated in whole pellets and in samples containing only bone tissue, which were dissected from the whole pellet. The increased levels of certain elements, including Mn, Zn, Ba, Cu and radioactive K-40, indicate contamination of the soil by various sources, such as industrial plants and agricultural practices. From the results presented in this article, we suggest that the analysis of owl pellets may indicate the quality of the local environment.
T2  - Chemistry and Ecology
T1  - Detection of elements and radioactivity in pellets from long-eared owls (Asio otus) inhabiting the city of Belgrade (Serbia)
VL  - 27
IS  - 5
SP  - 393
EP  - 400
DO  - 10.1080/02757540.2011.607440
ER  - 

@article{
author = "Demajo, Miroslav and Cvetićanin, Jelena M. and Stoiljković, Milovan and Trpkov, Đorđe and Andrić, Velibor and Onjia, Antonije E. and Nešković, Olivera M.",
year = "2011",
abstract = "In this study, we analysed pellets from long-eared owls (Asio otus) collected from four localities in Belgrade (Serbia). The pellets contained the remains of prey, namely voles (Arvicola terrestris) and field mice (Apodemus agrarius). The concentrations of 14 elements (Ca, P, Mg, Na, K, Fe, Zn, Sr, Ba, Mn, Ti, Cu, Si, B) were evaluated in whole pellets and in samples containing only bone tissue, which were dissected from the whole pellet. The increased levels of certain elements, including Mn, Zn, Ba, Cu and radioactive K-40, indicate contamination of the soil by various sources, such as industrial plants and agricultural practices. From the results presented in this article, we suggest that the analysis of owl pellets may indicate the quality of the local environment.",
journal = "Chemistry and Ecology",
title = "Detection of elements and radioactivity in pellets from long-eared owls (Asio otus) inhabiting the city of Belgrade (Serbia)",
volume = "27",
number = "5",
pages = "393-400",
doi = "10.1080/02757540.2011.607440"
}

Demajo, M., Cvetićanin, J. M., Stoiljković, M., Trpkov, Đ., Andrić, V., Onjia, A. E.,& Nešković, O. M.. (2011). Detection of elements and radioactivity in pellets from long-eared owls (Asio otus) inhabiting the city of Belgrade (Serbia). in Chemistry and Ecology, 27(5), 393-400.
https://doi.org/10.1080/02757540.2011.607440

Demajo M, Cvetićanin JM, Stoiljković M, Trpkov Đ, Andrić V, Onjia AE, Nešković OM. Detection of elements and radioactivity in pellets from long-eared owls (Asio otus) inhabiting the city of Belgrade (Serbia). in Chemistry and Ecology. 2011;27(5):393-400.
doi:10.1080/02757540.2011.607440 .

Demajo, Miroslav, Cvetićanin, Jelena M., Stoiljković, Milovan, Trpkov, Đorđe, Andrić, Velibor, Onjia, Antonije E., Nešković, Olivera M., "Detection of elements and radioactivity in pellets from long-eared owls (Asio otus) inhabiting the city of Belgrade (Serbia)" in Chemistry and Ecology, 27, no. 5 (2011):393-400,
https://doi.org/10.1080/02757540.2011.607440 . .

TY  - CONF
AU  - Demajo, Miroslav
AU  - Cvetićanin, Jelena M.
AU  - Stoiljković, Milovan
AU  - Trpkov, Đorđe
AU  - Andrić, Velibor
AU  - Onjia, Antonije E.
AU  - Nešković, Olivera M.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9338
AB  - Pellets from Long-Eared Owls (Asio otus) were collected from four localities in the
city and in the vicinity of Belgrade. The element content in the pellets was
analyzed. The results indicate that owl pellets may be useful for monitoring
environmental conditions, specifically soil quality.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
T1  - Pellets from long-eared owls (asio otus) as indicators of soil quality
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9338
ER  - 

@conference{
author = "Demajo, Miroslav and Cvetićanin, Jelena M. and Stoiljković, Milovan and Trpkov, Đorđe and Andrić, Velibor and Onjia, Antonije E. and Nešković, Olivera M.",
year = "2010",
abstract = "Pellets from Long-Eared Owls (Asio otus) were collected from four localities in the
city and in the vicinity of Belgrade. The element content in the pellets was
analyzed. The results indicate that owl pellets may be useful for monitoring
environmental conditions, specifically soil quality.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry",
title = "Pellets from long-eared owls (asio otus) as indicators of soil quality",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9338"
}

Demajo, M., Cvetićanin, J. M., Stoiljković, M., Trpkov, Đ., Andrić, V., Onjia, A. E.,& Nešković, O. M.. (2010). Pellets from long-eared owls (asio otus) as indicators of soil quality. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia..
https://hdl.handle.net/21.15107/rcub_vinar_9338

Demajo M, Cvetićanin JM, Stoiljković M, Trpkov Đ, Andrić V, Onjia AE, Nešković OM. Pellets from long-eared owls (asio otus) as indicators of soil quality. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_9338 .

Demajo, Miroslav, Cvetićanin, Jelena M., Stoiljković, Milovan, Trpkov, Đorđe, Andrić, Velibor, Onjia, Antonije E., Nešković, Olivera M., "Pellets from long-eared owls (asio otus) as indicators of soil quality" in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry (2010),
https://hdl.handle.net/21.15107/rcub_vinar_9338 .

TY  - JOUR
AU  - Cvetićanin, Jelena M.
AU  - Krklješ, Aleksandra N.
AU  - Kačarević-Popović, Zorica M.
AU  - Mitrić, Miodrag
AU  - Rakočević, Zlatko Lj.
AU  - Trpkov, Đorđe
AU  - Nešković, Olivera M.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4034
AB  - In this paper, an advanced method of one-step functionalization of single and multi walled carbon nanotubes (SWCNTs and MWCNTs) using gamma-irradiation was described. Two synthesis procedures, related with different reduction species, were employed. For the first time, poly(vinyl alcohol) PVA is successfully utilized as a source to reduce silver (Ag) metal ions without having any additional reducing agents to obtain Ag nanoparticles on CNTs. The decoration of carbon nanotubes with Ag nanoparticles takes place through anchoring of (PVA) on nanotubes surface. Optical properties of as-prepared samples and mechanism responsible for the functionalization of carbon nanotubes were investigated using UV-vis and FTIR spectroscopy, respectively. Decorated carbon nanotubes were visualized using microscopic techniques: transmission electron microscopy and scanning tunneling microscopy. Also, the presence of Ag on the nanotubes was confirmed using energy dispersive X-ray spectroscopy. This simple and effective method of making a carbon nanotube type of composites is of interest not only for an application in various areas of technology and biology, but for investigation of the potential of radiation technology for nanoengineering of materials. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Functionalization of carbon nanotubes with silver clusters
VL  - 256
IS  - 23
SP  - 7048
EP  - 7055
DO  - 10.1016/j.apsusc.2010.05.023
ER  - 

@article{
author = "Cvetićanin, Jelena M. and Krklješ, Aleksandra N. and Kačarević-Popović, Zorica M. and Mitrić, Miodrag and Rakočević, Zlatko Lj. and Trpkov, Đorđe and Nešković, Olivera M.",
year = "2010",
abstract = "In this paper, an advanced method of one-step functionalization of single and multi walled carbon nanotubes (SWCNTs and MWCNTs) using gamma-irradiation was described. Two synthesis procedures, related with different reduction species, were employed. For the first time, poly(vinyl alcohol) PVA is successfully utilized as a source to reduce silver (Ag) metal ions without having any additional reducing agents to obtain Ag nanoparticles on CNTs. The decoration of carbon nanotubes with Ag nanoparticles takes place through anchoring of (PVA) on nanotubes surface. Optical properties of as-prepared samples and mechanism responsible for the functionalization of carbon nanotubes were investigated using UV-vis and FTIR spectroscopy, respectively. Decorated carbon nanotubes were visualized using microscopic techniques: transmission electron microscopy and scanning tunneling microscopy. Also, the presence of Ag on the nanotubes was confirmed using energy dispersive X-ray spectroscopy. This simple and effective method of making a carbon nanotube type of composites is of interest not only for an application in various areas of technology and biology, but for investigation of the potential of radiation technology for nanoengineering of materials. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Functionalization of carbon nanotubes with silver clusters",
volume = "256",
number = "23",
pages = "7048-7055",
doi = "10.1016/j.apsusc.2010.05.023"
}

Cvetićanin, J. M., Krklješ, A. N., Kačarević-Popović, Z. M., Mitrić, M., Rakočević, Z. Lj., Trpkov, Đ.,& Nešković, O. M.. (2010). Functionalization of carbon nanotubes with silver clusters. in Applied Surface Science, 256(23), 7048-7055.
https://doi.org/10.1016/j.apsusc.2010.05.023

Cvetićanin JM, Krklješ AN, Kačarević-Popović ZM, Mitrić M, Rakočević ZL, Trpkov Đ, Nešković OM. Functionalization of carbon nanotubes with silver clusters. in Applied Surface Science. 2010;256(23):7048-7055.
doi:10.1016/j.apsusc.2010.05.023 .

Cvetićanin, Jelena M., Krklješ, Aleksandra N., Kačarević-Popović, Zorica M., Mitrić, Miodrag, Rakočević, Zlatko Lj., Trpkov, Đorđe, Nešković, Olivera M., "Functionalization of carbon nanotubes with silver clusters" in Applied Surface Science, 256, no. 23 (2010):7048-7055,
https://doi.org/10.1016/j.apsusc.2010.05.023 . .

TY  - CONF
AU  - Cvetićanin, Jelena M.
AU  - Krklješ, Aleksandra N.
AU  - Kačarević-Popović, Zorica M.
AU  - Trpkov, Đorđe
AU  - Cindrić, Mario
AU  - Nešković, Olivera M.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9284
AB  - Silver clusters were produced by two different synthesis procedures, related with
different reduction species. PVA (polyvinyl alcohol) was successfully utilized as a
source to reduce silver (Ag) metal ions without using any additional reducing
agents to obtain Ag clusters. Silver clusters with atoms numbering 5-29 are
registered through mass spectrometry using MALDI TOF and MALDI TOF/TOF
techniques. Analysis showed that clusters with magic numbers are the largest,
while those with an odd number of atoms are larger than clusters with an even
number of atoms. Stability of these molecules, magic number actually, is in
relation with their electronic configuration.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
T1  - Mass spectrometric investigation of silver clusters
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9284
ER  - 

@conference{
author = "Cvetićanin, Jelena M. and Krklješ, Aleksandra N. and Kačarević-Popović, Zorica M. and Trpkov, Đorđe and Cindrić, Mario and Nešković, Olivera M.",
year = "2010",
abstract = "Silver clusters were produced by two different synthesis procedures, related with
different reduction species. PVA (polyvinyl alcohol) was successfully utilized as a
source to reduce silver (Ag) metal ions without using any additional reducing
agents to obtain Ag clusters. Silver clusters with atoms numbering 5-29 are
registered through mass spectrometry using MALDI TOF and MALDI TOF/TOF
techniques. Analysis showed that clusters with magic numbers are the largest,
while those with an odd number of atoms are larger than clusters with an even
number of atoms. Stability of these molecules, magic number actually, is in
relation with their electronic configuration.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry",
title = "Mass spectrometric investigation of silver clusters",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9284"
}

Cvetićanin, J. M., Krklješ, A. N., Kačarević-Popović, Z. M., Trpkov, Đ., Cindrić, M.,& Nešković, O. M.. (2010). Mass spectrometric investigation of silver clusters. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia..
https://hdl.handle.net/21.15107/rcub_vinar_9284

Cvetićanin JM, Krklješ AN, Kačarević-Popović ZM, Trpkov Đ, Cindrić M, Nešković OM. Mass spectrometric investigation of silver clusters. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_9284 .

Cvetićanin, Jelena M., Krklješ, Aleksandra N., Kačarević-Popović, Zorica M., Trpkov, Đorđe, Cindrić, Mario, Nešković, Olivera M., "Mass spectrometric investigation of silver clusters" in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry (2010),
https://hdl.handle.net/21.15107/rcub_vinar_9284 .