Kačarević-Popović, Zorica M.

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Authority KeyName Variants
orcid::0000-0003-0861-7710
  • Kačarević-Popović, Zorica M. (66)
Projects
Functional, Functionalized and Advanced Nanomaterials Synthesis, processing and applications of nanostructured multifunctional materials with defined properties
International Atomic Energy Agency, Vienna [CRP: F23028, 15384] Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites
Physics and Chemistry with Ion Beams Lithium-ion batteries and fuel cells - research and development
Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) [SFRH/BPD/77768/2011], NATO [984925, EAP.SFPP 984925 - DURAPEM] Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications
Biological response modifiers in physiological and pathological conditions Nanostructured multifunctional materials and nanocomposites
Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion International Atomic Energy Agency [CRP:F22051, 16733]
International Atomic Energy Agency (IAEA) [CRP: F22051, 16733] International Atomic Energy Agency Vienna [CRP: F23028, 15384]
Ministry of Science and Environmental Protection, Republic of Serbia [142061] Ministry of Science and Technological Development of Republic of Serbia [142027, 141009]
Ministry of Science and Technological Development of Serbia [151005B] Ministry of Science and Technological Development, Republic of Serbia [142001], International Atomic Energy Agency (IAEA) [F23028]
Ministry of Science and Technological Development, Republic of Serbia [142061] NATO-Science for Peace, Security Programme through the project DURAPEM-NovelMaterials for Durable Proton Exchange Membrane Fuel Cells
NATO through the Science for Peace Project [EAP.SFPP 984925 - DURAPEM]

Author's Bibliography

The enhancement of cartilage regeneration by use of a chitosan-based scaffold in a 3D model of microfracture in vitro: a pilot evaluation

Anđelkov, Nenad; Riyadh, H; Ivarsson, M; Kačarević-Popović, Zorica M.; Krstić, Jelena I.; Wretenberg, P

(2021)

TY  - JOUR
AU  - Anđelkov, Nenad
AU  - Riyadh, H
AU  - Ivarsson, M
AU  - Kačarević-Popović, Zorica M.
AU  - Krstić, Jelena I.
AU  - Wretenberg, P
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9126
AB  - Purpose:Even though various types of scaffolds have been used lately as a complement to microfracture, the exact mechanism of reported cartilage repair improvement when using scaffolds is still unclear. In this study, an effort has been made to identify the specific effects that scaffolds may have on the cells of reparation when using this technique.Methods:A 3‑D model in vitro, representing microfracture and containing both chondrocytes and bone marrow‑derived cells in different experimental conditions was made, and the cells were cultured for eight weeks. Subse‑quently, the constructs containing our 3‑D model were removed from the cell culture medium, fixed in paraffin and analyzed with immunohistochemistry.Results:Bone marrow – derived cells migrated to the upper compartment of the construct through a perforated nylon membrane containing both enzymatically digested‑ and non‑digested particulated cartilage. The histological sections were stained with hematoxylin, eosin, S‑100, SOX‑9, Gomori, and procollagen type I and II. When minced cartilage wasn’t pretreated with collagenase, exclusively bone‑derived cells have created new extracellular matrix as showed by the histological analysis.Conclusions:In this model of microfracture, bone‑derived cells but not chondrocytes have shown to have an active role in new cartilage formation without predigestion with collagenase. Moreover, it seems that the addition of a chitosan‑based scaffold may lead to the improvement of a new cartilage matrix synthesis and integration. This effect hasn’t been seen without the use of scaffold or when a fibrin‑ or a collagen‑based scaffold have been used.
T2  - Journal of Experimental Orthopaedics
T1  - The enhancement of cartilage regeneration by use of a chitosan-based scaffold in a 3D model of microfracture in vitro: a pilot evaluation
VL  - 8
IS  - 1
SP  - 12
DO  - 10.1186/s40634-021-00328-z
ER  - 
@article{
author = "Anđelkov, Nenad and Riyadh, H and Ivarsson, M and Kačarević-Popović, Zorica M. and Krstić, Jelena I. and Wretenberg, P",
year = "2021",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9126",
abstract = "Purpose:Even though various types of scaffolds have been used lately as a complement to microfracture, the exact mechanism of reported cartilage repair improvement when using scaffolds is still unclear. In this study, an effort has been made to identify the specific effects that scaffolds may have on the cells of reparation when using this technique.Methods:A 3‑D model in vitro, representing microfracture and containing both chondrocytes and bone marrow‑derived cells in different experimental conditions was made, and the cells were cultured for eight weeks. Subse‑quently, the constructs containing our 3‑D model were removed from the cell culture medium, fixed in paraffin and analyzed with immunohistochemistry.Results:Bone marrow – derived cells migrated to the upper compartment of the construct through a perforated nylon membrane containing both enzymatically digested‑ and non‑digested particulated cartilage. The histological sections were stained with hematoxylin, eosin, S‑100, SOX‑9, Gomori, and procollagen type I and II. When minced cartilage wasn’t pretreated with collagenase, exclusively bone‑derived cells have created new extracellular matrix as showed by the histological analysis.Conclusions:In this model of microfracture, bone‑derived cells but not chondrocytes have shown to have an active role in new cartilage formation without predigestion with collagenase. Moreover, it seems that the addition of a chitosan‑based scaffold may lead to the improvement of a new cartilage matrix synthesis and integration. This effect hasn’t been seen without the use of scaffold or when a fibrin‑ or a collagen‑based scaffold have been used.",
journal = "Journal of Experimental Orthopaedics",
title = "The enhancement of cartilage regeneration by use of a chitosan-based scaffold in a 3D model of microfracture in vitro: a pilot evaluation",
volume = "8",
number = "1",
pages = "12",
doi = "10.1186/s40634-021-00328-z"
}
Anđelkov, N., Riyadh, H., Ivarsson, M., Kačarević-Popović, Z. M., Krstić, J. I.,& Wretenberg, P. (2021). The enhancement of cartilage regeneration by use of a chitosan-based scaffold in a 3D model of microfracture in vitro: a pilot evaluation.
Journal of Experimental Orthopaedics, 8(1), 12.
https://doi.org/10.1186/s40634-021-00328-z
Anđelkov N, Riyadh H, Ivarsson M, Kačarević-Popović ZM, Krstić JI, Wretenberg P. The enhancement of cartilage regeneration by use of a chitosan-based scaffold in a 3D model of microfracture in vitro: a pilot evaluation. Journal of Experimental Orthopaedics. 2021;8(1):12
Anđelkov Nenad, Riyadh H, Ivarsson M, Kačarević-Popović Zorica M., Krstić Jelena I., Wretenberg P, "The enhancement of cartilage regeneration by use of a chitosan-based scaffold in a 3D model of microfracture in vitro: a pilot evaluation" Journal of Experimental Orthopaedics, 8, no. 1 (2021):12,
https://doi.org/10.1186/s40634-021-00328-z .
2

Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity

Lojpur, Vesna; Krstić, Jelena I.; Kačarević-Popović, Zorica M.; Filipović, Nenad; Validžić, Ivana Lj.

(2018)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Krstić, Jelena I.
AU  - Kačarević-Popović, Zorica M.
AU  - Filipović, Nenad
AU  - Validžić, Ivana Lj.
PY  - 2018
UR  - http://link.springer.com/10.1007/s10311-017-0702-7
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7737
AB  - Producing green and efficient energy sources is a major challenge. As a consequence, the use of photovoltaic devices for conversion of light into electricity is growing worldwide. A lot of effort had been invested to create high-efficient solar cells, but their durability, stability, flexibility and efficiency at low light intensities are still unexplored. Here, we built a flexible solar cell made of p-doped, amorphized a-undoped and n-doped Sb2S3 solid carrier loaded with electrolyte. Indium tin oxide glass was the working electrode, and aluminium was the counter electrode. Every (p-a-n) flexible Sb2S3/solid carrier layers were obtained using a cheap casting/solvent evaporation technique, from a blend consisted of chitosan, polyethylene glycol and electrolyte containing 0.5 M potassium iodide and 0.05 M iodine, and corresponding synthesized amorphized a-undoped and p and n-doped Sb2S3 semiconductor. Results show that flexible Sb2S3 solar cell possesses good stability and efficiency of about 10% at 5% sun. Overall, our findings demonstrate for the first time that flexible solar cell can be made and used for low light intensity applications.
T2  - Environmental Chemistry Letters
T1  - Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity
VL  - 16
IS  - 2
SP  - 659
EP  - 664
DO  - 10.1007/s10311-017-0702-7
ER  - 
@article{
author = "Lojpur, Vesna and Krstić, Jelena I. and Kačarević-Popović, Zorica M. and Filipović, Nenad and Validžić, Ivana Lj.",
year = "2018",
url = "http://link.springer.com/10.1007/s10311-017-0702-7, http://vinar.vin.bg.ac.rs/handle/123456789/7737",
abstract = "Producing green and efficient energy sources is a major challenge. As a consequence, the use of photovoltaic devices for conversion of light into electricity is growing worldwide. A lot of effort had been invested to create high-efficient solar cells, but their durability, stability, flexibility and efficiency at low light intensities are still unexplored. Here, we built a flexible solar cell made of p-doped, amorphized a-undoped and n-doped Sb2S3 solid carrier loaded with electrolyte. Indium tin oxide glass was the working electrode, and aluminium was the counter electrode. Every (p-a-n) flexible Sb2S3/solid carrier layers were obtained using a cheap casting/solvent evaporation technique, from a blend consisted of chitosan, polyethylene glycol and electrolyte containing 0.5 M potassium iodide and 0.05 M iodine, and corresponding synthesized amorphized a-undoped and p and n-doped Sb2S3 semiconductor. Results show that flexible Sb2S3 solar cell possesses good stability and efficiency of about 10% at 5% sun. Overall, our findings demonstrate for the first time that flexible solar cell can be made and used for low light intensity applications.",
journal = "Environmental Chemistry Letters",
title = "Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity",
volume = "16",
number = "2",
pages = "659-664",
doi = "10.1007/s10311-017-0702-7"
}
Lojpur, V., Krstić, J. I., Kačarević-Popović, Z. M., Filipović, N.,& Validžić, I. Lj. (2018). Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity.
Environmental Chemistry Letters, 16(2), 659-664.
https://doi.org/10.1007/s10311-017-0702-7
Lojpur V, Krstić JI, Kačarević-Popović ZM, Filipović N, Validžić IL. Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity. Environmental Chemistry Letters. 2018;16(2):659-664
Lojpur Vesna, Krstić Jelena I., Kačarević-Popović Zorica M., Filipović Nenad, Validžić Ivana Lj., "Flexible and high-efficiency Sb2S3/solid carrier solar cell at low light intensity" Environmental Chemistry Letters, 16, no. 2 (2018):659-664,
https://doi.org/10.1007/s10311-017-0702-7 .
2
2
3

Efficient and novel Sb2S3 based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend

Lojpur, Vesna; Krstić, Jelena I.; Kačarević-Popović, Zorica M.; Mitrić, Miodrag; Rakočević, Zlatko Lj.; Validžić, Ivana Lj.

(2018)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Krstić, Jelena I.
AU  - Kačarević-Popović, Zorica M.
AU  - Mitrić, Miodrag
AU  - Rakočević, Zlatko Lj.
AU  - Validžić, Ivana Lj.
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1915
AB  - We present here a novel solar cell made of ITO/composite p-doped Sb2S3 + P3HT + PANI + TiO2/amorphous Sb2S3+P3HT+PANI+TiO2/n-doped Sb2S3 + P3HT + PANI + TiO2/solid carrier/aluminum as counter electrode. With spraying technique, the layers were deposited and the thickness of films was 1m. A new solid carrier of electrolyte was a blend consisted of chitosan (low MW), polyethylene glycol and electrolyte. X-ray diffraction was recorded to confirm the amorphous nature of the blend. Information about the surface appearance and roughness of a solid carrier dry and soaked in the electrolyte was given by atomic force microscopy. The solar cell was examined at very low and low light intensity (5% and 35% of sun, respectively), and at standard test conditions (100% of sun) using different light sources. The whole cell surface was 7.5cm(2) while the illuminated part was 3cm(2). Obtained results expressed for the illuminated surface showed the highest efficiency of 23.1% at 5% of sun while the efficiency of the cell was 2.9% at 35% of sun and only 0.75% at intensity of 100% of sun.
T2  - International Journal of Energy Research
T1  - Efficient and novel Sb2S3 based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend
VL  - 42
IS  - 2
SP  - 843
EP  - 852
DO  - 10.1002/er.3899
ER  - 
@article{
author = "Lojpur, Vesna and Krstić, Jelena I. and Kačarević-Popović, Zorica M. and Mitrić, Miodrag and Rakočević, Zlatko Lj. and Validžić, Ivana Lj.",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1915",
abstract = "We present here a novel solar cell made of ITO/composite p-doped Sb2S3 + P3HT + PANI + TiO2/amorphous Sb2S3+P3HT+PANI+TiO2/n-doped Sb2S3 + P3HT + PANI + TiO2/solid carrier/aluminum as counter electrode. With spraying technique, the layers were deposited and the thickness of films was 1m. A new solid carrier of electrolyte was a blend consisted of chitosan (low MW), polyethylene glycol and electrolyte. X-ray diffraction was recorded to confirm the amorphous nature of the blend. Information about the surface appearance and roughness of a solid carrier dry and soaked in the electrolyte was given by atomic force microscopy. The solar cell was examined at very low and low light intensity (5% and 35% of sun, respectively), and at standard test conditions (100% of sun) using different light sources. The whole cell surface was 7.5cm(2) while the illuminated part was 3cm(2). Obtained results expressed for the illuminated surface showed the highest efficiency of 23.1% at 5% of sun while the efficiency of the cell was 2.9% at 35% of sun and only 0.75% at intensity of 100% of sun.",
journal = "International Journal of Energy Research",
title = "Efficient and novel Sb2S3 based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend",
volume = "42",
number = "2",
pages = "843-852",
doi = "10.1002/er.3899"
}
Lojpur, V., Krstić, J. I., Kačarević-Popović, Z. M., Mitrić, M., Rakočević, Z. Lj.,& Validžić, I. Lj. (2018). Efficient and novel Sb2S3 based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend.
International Journal of Energy Research, 42(2), 843-852.
https://doi.org/10.1002/er.3899
Lojpur V, Krstić JI, Kačarević-Popović ZM, Mitrić M, Rakočević ZL, Validžić IL. Efficient and novel Sb2S3 based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend. International Journal of Energy Research. 2018;42(2):843-852
Lojpur Vesna, Krstić Jelena I., Kačarević-Popović Zorica M., Mitrić Miodrag, Rakočević Zlatko Lj., Validžić Ivana Lj., "Efficient and novel Sb2S3 based solar cells with chitosan/poly(ethylene glycol)/electrolyte blend" International Journal of Energy Research, 42, no. 2 (2018):843-852,
https://doi.org/10.1002/er.3899 .
8
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9

The Role of Low Light Intensity: A Cheap, Stable, and Solidly Efficient Amorphous Sb2S3 Powder/Hypericin Composite/PVA Matrix Loaded with Electrolyte Solar Cell

Lojpur, Vesna; Mitrić, Miodrag; Kačarević-Popović, Zorica M.; Radosavljević, Aleksandra; Rakočević, Zlatko Lj.; Validžić, Ivana Lj.

(2017)

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Mitrić, Miodrag
AU  - Kačarević-Popović, Zorica M.
AU  - Radosavljević, Aleksandra
AU  - Rakočević, Zlatko Lj.
AU  - Validžić, Ivana Lj.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1810
AB  - We report here on an inexpensive, solid and stable solar cell designed and made entirely of synthesized materials, Sb2S3/ hypericin (dye) thin film on ITO-coaled glass (working electrode), aluminum (counter electrode), and PVA matrix (solid carrier) loaded, with electrolyte (0.5M KI+ 0.05M I-2). The fact, that the cell is inexpensive, hut also stable and. solid, with efficiency of around 1.3%/cm(2) at a very low light intensity of only 5% sun, makes it particularly suitable for indoor applications. At higher light, intensities of 25 and 55% sun, however, the cell exhibits lower efficiency, around 0.3 and 0.07%/cm(2), respectively. Development of low-cost cell technology combined with understanding of low light utilization and, setting of standard conditions should be some of the future directions the research in this area should, follow. Therefore, in this work, we tried to give sufficient reasons for establishing standard conditions related to low light, intensity. (C) 2017 American Institute of Chemical Engineers.
T2  - Environmental Progress and Sustainable Energy
T1  - The Role of Low Light Intensity: A Cheap, Stable, and Solidly Efficient Amorphous Sb2S3 Powder/Hypericin Composite/PVA Matrix Loaded with Electrolyte Solar Cell
VL  - 36
IS  - 5
SP  - 1507
EP  - 1516
DO  - 10.1002/ep.12597
ER  - 
@article{
author = "Lojpur, Vesna and Mitrić, Miodrag and Kačarević-Popović, Zorica M. and Radosavljević, Aleksandra and Rakočević, Zlatko Lj. and Validžić, Ivana Lj.",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1810",
abstract = "We report here on an inexpensive, solid and stable solar cell designed and made entirely of synthesized materials, Sb2S3/ hypericin (dye) thin film on ITO-coaled glass (working electrode), aluminum (counter electrode), and PVA matrix (solid carrier) loaded, with electrolyte (0.5M KI+ 0.05M I-2). The fact, that the cell is inexpensive, hut also stable and. solid, with efficiency of around 1.3%/cm(2) at a very low light intensity of only 5% sun, makes it particularly suitable for indoor applications. At higher light, intensities of 25 and 55% sun, however, the cell exhibits lower efficiency, around 0.3 and 0.07%/cm(2), respectively. Development of low-cost cell technology combined with understanding of low light utilization and, setting of standard conditions should be some of the future directions the research in this area should, follow. Therefore, in this work, we tried to give sufficient reasons for establishing standard conditions related to low light, intensity. (C) 2017 American Institute of Chemical Engineers.",
journal = "Environmental Progress and Sustainable Energy",
title = "The Role of Low Light Intensity: A Cheap, Stable, and Solidly Efficient Amorphous Sb2S3 Powder/Hypericin Composite/PVA Matrix Loaded with Electrolyte Solar Cell",
volume = "36",
number = "5",
pages = "1507-1516",
doi = "10.1002/ep.12597"
}
Lojpur, V., Mitrić, M., Kačarević-Popović, Z. M., Radosavljević, A., Rakočević, Z. Lj.,& Validžić, I. Lj. (2017). The Role of Low Light Intensity: A Cheap, Stable, and Solidly Efficient Amorphous Sb2S3 Powder/Hypericin Composite/PVA Matrix Loaded with Electrolyte Solar Cell.
Environmental Progress and Sustainable Energy, 36(5), 1507-1516.
https://doi.org/10.1002/ep.12597
Lojpur V, Mitrić M, Kačarević-Popović ZM, Radosavljević A, Rakočević ZL, Validžić IL. The Role of Low Light Intensity: A Cheap, Stable, and Solidly Efficient Amorphous Sb2S3 Powder/Hypericin Composite/PVA Matrix Loaded with Electrolyte Solar Cell. Environmental Progress and Sustainable Energy. 2017;36(5):1507-1516
Lojpur Vesna, Mitrić Miodrag, Kačarević-Popović Zorica M., Radosavljević Aleksandra, Rakočević Zlatko Lj., Validžić Ivana Lj., "The Role of Low Light Intensity: A Cheap, Stable, and Solidly Efficient Amorphous Sb2S3 Powder/Hypericin Composite/PVA Matrix Loaded with Electrolyte Solar Cell" Environmental Progress and Sustainable Energy, 36, no. 5 (2017):1507-1516,
https://doi.org/10.1002/ep.12597 .
6
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6

Electroanalytical Sensing of Bromides Using Radiolytically Synthesized Silver Nanoparticle Electrocatalysts

Milikic, Jadranka; Stosevski, Ivan; Krstić, Jelena I.; Kačarević-Popović, Zorica M.; Miljanic, Scepan; Šljukić, Biljana

(2017)

TY  - JOUR
AU  - Milikic, Jadranka
AU  - Stosevski, Ivan
AU  - Krstić, Jelena I.
AU  - Kačarević-Popović, Zorica M.
AU  - Miljanic, Scepan
AU  - Šljukić, Biljana
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1803
AB  - Monitoring bromides (Br-) is of crucial importance since bromates, potential human carcinogens, are formed during ozonation of water containing bromides in concentrations GT 100 mu gL(-1). Within this study, silver (Ag) and four carbon-supported Ag catalysts were synthesized by the gamma-radiation method and their morphology and structure examined using transmission electron microscopy, X-ray diffraction, and UV-Vis analysis. The nanocatalysts were tested for Br- sensing in aqueous media using cyclic voltammetry. All five Ag materials exhibited electroactivity for sensing of Br- ions, with pure Ag catalyst giving the best response to Br- ions presence in terms of the lowest limit of detection. Sensing of bromides was also explored in tap water after addition of bromides suggesting that herein prepared catalysts could be used for bromides detection in real samples. Furthermore, sensing of other halogen ions, namely, chlorides and iodides, was examined, and response due to chloride presence was recorded.
T2  - Journal of Analytical Methods in Chemistry
T1  - Electroanalytical Sensing of Bromides Using Radiolytically Synthesized Silver Nanoparticle Electrocatalysts
DO  - 10.1155/2017/2028417
ER  - 
@article{
author = "Milikic, Jadranka and Stosevski, Ivan and Krstić, Jelena I. and Kačarević-Popović, Zorica M. and Miljanic, Scepan and Šljukić, Biljana",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1803",
abstract = "Monitoring bromides (Br-) is of crucial importance since bromates, potential human carcinogens, are formed during ozonation of water containing bromides in concentrations GT 100 mu gL(-1). Within this study, silver (Ag) and four carbon-supported Ag catalysts were synthesized by the gamma-radiation method and their morphology and structure examined using transmission electron microscopy, X-ray diffraction, and UV-Vis analysis. The nanocatalysts were tested for Br- sensing in aqueous media using cyclic voltammetry. All five Ag materials exhibited electroactivity for sensing of Br- ions, with pure Ag catalyst giving the best response to Br- ions presence in terms of the lowest limit of detection. Sensing of bromides was also explored in tap water after addition of bromides suggesting that herein prepared catalysts could be used for bromides detection in real samples. Furthermore, sensing of other halogen ions, namely, chlorides and iodides, was examined, and response due to chloride presence was recorded.",
journal = "Journal of Analytical Methods in Chemistry",
title = "Electroanalytical Sensing of Bromides Using Radiolytically Synthesized Silver Nanoparticle Electrocatalysts",
doi = "10.1155/2017/2028417"
}
Milikic, J., Stosevski, I., Krstić, J. I., Kačarević-Popović, Z. M., Miljanic, S.,& Šljukić, B. (2017). Electroanalytical Sensing of Bromides Using Radiolytically Synthesized Silver Nanoparticle Electrocatalysts.
Journal of Analytical Methods in Chemistry.
https://doi.org/10.1155/2017/2028417
Milikic J, Stosevski I, Krstić JI, Kačarević-Popović ZM, Miljanic S, Šljukić B. Electroanalytical Sensing of Bromides Using Radiolytically Synthesized Silver Nanoparticle Electrocatalysts. Journal of Analytical Methods in Chemistry. 2017;
Milikic Jadranka, Stosevski Ivan, Krstić Jelena I., Kačarević-Popović Zorica M., Miljanic Scepan, Šljukić Biljana, "Electroanalytical Sensing of Bromides Using Radiolytically Synthesized Silver Nanoparticle Electrocatalysts" Journal of Analytical Methods in Chemistry (2017),
https://doi.org/10.1155/2017/2028417 .
1
1
1

Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel

Kuljanin-Jakovljević, Jadranka Ž.; Radosavljević, Aleksandra; Spasojević, Jelena P.; Carević, Milica V.; Mitrić, Miodrag; Kačarević-Popović, Zorica M.

(2017)

TY  - JOUR
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Radosavljević, Aleksandra
AU  - Spasojević, Jelena P.
AU  - Carević, Milica V.
AU  - Mitrić, Miodrag
AU  - Kačarević-Popović, Zorica M.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1321
AB  - In this study, the nanocomposites based on semiconductor lead sulfide (PbS) nanoparticles and poly (vinyl alcohol) (PVA) were investigated. The gamma irradiation induced in situ incorporation of PbS nanoparticles in crosslinked polymer network i.e. PVA hydrogel was performed. PVA hydrogel was previously obtained also under the influence of gamma irradiation. UV Vis absorption and X-ray diffraction measurements were employed to investigate optical and structural properties of PbS nano particles, respectively, and obtained results indicates the presence of nanoparticles with approximately 6 nm in diameter and face centered cubic rock-salt crystal structure. The porous morphology was confirmed by scanning electron microscopy. Swelling data revealed that investigated hydrogels (PVA and PbS-PVA nanocomposite) shows non-Fickian diffusion, indicating that both diffusion and polymer relaxation processes controlled the fluid transport. The values of diffusion coefficients have an order of magnitude 10(-9) cm(2)/s (typical values for water diffusion in polymers) and the best fit with the experimental results showed the Etters approximation. Comparing the thermal properties of PbS-PVA xerogel nanocomposite with PVA xerogel it was observed that incorporation of PbS nanoparticles in crosslinked PVA matrix just slightly enhanced the thermal stability of nanocomposite. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel
VL  - 130
SP  - 282
EP  - 290
DO  - 10.1016/j.radphyschem.2016.09.003
ER  - 
@article{
author = "Kuljanin-Jakovljević, Jadranka Ž. and Radosavljević, Aleksandra and Spasojević, Jelena P. and Carević, Milica V. and Mitrić, Miodrag and Kačarević-Popović, Zorica M.",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1321",
abstract = "In this study, the nanocomposites based on semiconductor lead sulfide (PbS) nanoparticles and poly (vinyl alcohol) (PVA) were investigated. The gamma irradiation induced in situ incorporation of PbS nanoparticles in crosslinked polymer network i.e. PVA hydrogel was performed. PVA hydrogel was previously obtained also under the influence of gamma irradiation. UV Vis absorption and X-ray diffraction measurements were employed to investigate optical and structural properties of PbS nano particles, respectively, and obtained results indicates the presence of nanoparticles with approximately 6 nm in diameter and face centered cubic rock-salt crystal structure. The porous morphology was confirmed by scanning electron microscopy. Swelling data revealed that investigated hydrogels (PVA and PbS-PVA nanocomposite) shows non-Fickian diffusion, indicating that both diffusion and polymer relaxation processes controlled the fluid transport. The values of diffusion coefficients have an order of magnitude 10(-9) cm(2)/s (typical values for water diffusion in polymers) and the best fit with the experimental results showed the Etters approximation. Comparing the thermal properties of PbS-PVA xerogel nanocomposite with PVA xerogel it was observed that incorporation of PbS nanoparticles in crosslinked PVA matrix just slightly enhanced the thermal stability of nanocomposite. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel",
volume = "130",
pages = "282-290",
doi = "10.1016/j.radphyschem.2016.09.003"
}
Kuljanin-Jakovljević, J. Ž., Radosavljević, A., Spasojević, J. P., Carević, M. V., Mitrić, M.,& Kačarević-Popović, Z. M. (2017). Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel.
Radiation Physics and Chemistry, 130, 282-290.
https://doi.org/10.1016/j.radphyschem.2016.09.003
Kuljanin-Jakovljević JŽ, Radosavljević A, Spasojević JP, Carević MV, Mitrić M, Kačarević-Popović ZM. Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel. Radiation Physics and Chemistry. 2017;130:282-290
Kuljanin-Jakovljević Jadranka Ž., Radosavljević Aleksandra, Spasojević Jelena P., Carević Milica V., Mitrić Miodrag, Kačarević-Popović Zorica M., "Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel" Radiation Physics and Chemistry, 130 (2017):282-290,
https://doi.org/10.1016/j.radphyschem.2016.09.003 .
6
4
4

Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel

Spasojević, Jelena P.; Radosavljević, Aleksandra; Krstić, Jelena I.; Mitrić, Miodrag; Popović, Maja; Rakočević, Zlatko Lj.; Kalagasidis-Krusic, Melina; Kačarević-Popović, Zorica M.

(2017)

TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena I.
AU  - Mitrić, Miodrag
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis-Krusic, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1562
AB  - To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer. (C) 2015 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel
VL  - 38
IS  - 5
SP  - 1014
EP  - 1026
DO  - 10.1002/pc.23665
ER  - 
@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena I. and Mitrić, Miodrag and Popović, Maja and Rakočević, Zlatko Lj. and Kalagasidis-Krusic, Melina and Kačarević-Popović, Zorica M.",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1562",
abstract = "To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer. (C) 2015 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel",
volume = "38",
number = "5",
pages = "1014-1026",
doi = "10.1002/pc.23665"
}
Spasojević, J. P., Radosavljević, A., Krstić, J. I., Mitrić, M., Popović, M., Rakočević, Z. Lj., Kalagasidis-Krusic, M.,& Kačarević-Popović, Z. M. (2017). Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel.
Polymer Composites, 38(5), 1014-1026.
https://doi.org/10.1002/pc.23665
Spasojević JP, Radosavljević A, Krstić JI, Mitrić M, Popović M, Rakočević ZL, Kalagasidis-Krusic M, Kačarević-Popović ZM. Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. Polymer Composites. 2017;38(5):1014-1026
Spasojević Jelena P., Radosavljević Aleksandra, Krstić Jelena I., Mitrić Miodrag, Popović Maja, Rakočević Zlatko Lj., Kalagasidis-Krusic Melina, Kačarević-Popović Zorica M., "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel" Polymer Composites, 38, no. 5 (2017):1014-1026,
https://doi.org/10.1002/pc.23665 .
7
6
8

Radiolitically synthesized nano Ag/C catalysts for oxygen reduction and borohydride oxidation reactions in alkaline media, for potential applications in fuel cells

Stosevski, Ivan; Krstić, Jelena I.; Milikic, Jadranka; Šljukić, Biljana; Kačarević-Popović, Zorica M.; Mentus, Slavko V.; Miljanic, Scepan

(2016)

TY  - JOUR
AU  - Stosevski, Ivan
AU  - Krstić, Jelena I.
AU  - Milikic, Jadranka
AU  - Šljukić, Biljana
AU  - Kačarević-Popović, Zorica M.
AU  - Mentus, Slavko V.
AU  - Miljanic, Scepan
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1054
AB  - Carbon-supported silver nanoparticles (Ag:NPs/C) were synthesized by gamma irradiation-induced reduction method using the poly(vinyl alcohol) or poly(vinyl alcohol)/chitosan polymer as stabilizer. Prepared samples were characterized using transmission electron microscopy and X-ray diffractometry. Subsequently, Ag:NPs/C were studied using rotating disc and rotating ring disc method as electrocatalysts for ORR (oxygen reduction reaction) and BOR (borohydride oxidation reaction) for potential application in alkaline fuel cells. The synthesis method used herein offers simple and fast approach for catalytic ink preparation, since the ink is prepared in one-step radiation process, simultaneously with Ag+ ions reduction. Very high and stable catalytic efficiency toward ORR via 4e(-) path was evidenced during 4000 square pulse polarization cycles. BOR, accompanied with the simultaneous borohydride ion hydrolysis, was found to proceed at the oxidized Ag surface. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - Radiolitically synthesized nano Ag/C catalysts for oxygen reduction and borohydride oxidation reactions in alkaline media, for potential applications in fuel cells
VL  - 101
SP  - 79
EP  - 90
DO  - 10.1016/j.energy.2016.02.003
ER  - 
@article{
author = "Stosevski, Ivan and Krstić, Jelena I. and Milikic, Jadranka and Šljukić, Biljana and Kačarević-Popović, Zorica M. and Mentus, Slavko V. and Miljanic, Scepan",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1054",
abstract = "Carbon-supported silver nanoparticles (Ag:NPs/C) were synthesized by gamma irradiation-induced reduction method using the poly(vinyl alcohol) or poly(vinyl alcohol)/chitosan polymer as stabilizer. Prepared samples were characterized using transmission electron microscopy and X-ray diffractometry. Subsequently, Ag:NPs/C were studied using rotating disc and rotating ring disc method as electrocatalysts for ORR (oxygen reduction reaction) and BOR (borohydride oxidation reaction) for potential application in alkaline fuel cells. The synthesis method used herein offers simple and fast approach for catalytic ink preparation, since the ink is prepared in one-step radiation process, simultaneously with Ag+ ions reduction. Very high and stable catalytic efficiency toward ORR via 4e(-) path was evidenced during 4000 square pulse polarization cycles. BOR, accompanied with the simultaneous borohydride ion hydrolysis, was found to proceed at the oxidized Ag surface. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "Radiolitically synthesized nano Ag/C catalysts for oxygen reduction and borohydride oxidation reactions in alkaline media, for potential applications in fuel cells",
volume = "101",
pages = "79-90",
doi = "10.1016/j.energy.2016.02.003"
}
Stosevski, I., Krstić, J. I., Milikic, J., Šljukić, B., Kačarević-Popović, Z. M., Mentus, S. V.,& Miljanic, S. (2016). Radiolitically synthesized nano Ag/C catalysts for oxygen reduction and borohydride oxidation reactions in alkaline media, for potential applications in fuel cells.
Energy, 101, 79-90.
https://doi.org/10.1016/j.energy.2016.02.003
Stosevski I, Krstić JI, Milikic J, Šljukić B, Kačarević-Popović ZM, Mentus SV, Miljanic S. Radiolitically synthesized nano Ag/C catalysts for oxygen reduction and borohydride oxidation reactions in alkaline media, for potential applications in fuel cells. Energy. 2016;101:79-90
Stosevski Ivan, Krstić Jelena I., Milikic Jadranka, Šljukić Biljana, Kačarević-Popović Zorica M., Mentus Slavko V., Miljanic Scepan, "Radiolitically synthesized nano Ag/C catalysts for oxygen reduction and borohydride oxidation reactions in alkaline media, for potential applications in fuel cells" Energy, 101 (2016):79-90,
https://doi.org/10.1016/j.energy.2016.02.003 .
35
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34

Improved Poly(vinyl alcohol) (PVA) based matrix as a potential solid electrolyte for electrochemical energy conversion devices, obtained by gamma irradiation

Stosevski, Ivan; Krstić, Jelena I.; Vokic, Nikola; Radosavljevic, Miljan; Kačarević-Popović, Zorica M.; Miljanic, Seepan

(2015)

TY  - JOUR
AU  - Stosevski, Ivan
AU  - Krstić, Jelena I.
AU  - Vokic, Nikola
AU  - Radosavljevic, Miljan
AU  - Kačarević-Popović, Zorica M.
AU  - Miljanic, Seepan
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/799
AB  - PVA (Poly(vinyl alcohol)) matrixes were developed for potential application in electrochemical energy conversion devices, like batteries, alkaline fuel cells and electrolyzers. They were prepared by gamma-irradiation of aqueous PVA solutions, followed by different post irradiation treatments. By immersion in an electrolyte they become membranes with high ionic conductivities. The treatments were shown as the key factor determining the conductivity, through affecting their structure. An improved structure has large fractional free volume, and allows high electrolyte uptake and thus high conductivity (0.30 S cm(-1) -0.34 S cm(-1)). The structure, as well as the conductivity, has not been changed even after a period of 14 months, although the membranes have been exposed to strong alkaline medium. Besides high and long-term conductivity of the KOH doped membranes, other important properties for application in the devices were investigated, like thermal stability and gas crossover through the membranes. The 10% PVA(25kGy) membrane doped with saturated LiNO3 solution was tested in a rechargeable aqueous Li-ion battery. Due to its high conductivity it allowed an electrode material to have the same coulombic efficiency as it would have in liquid LiNO3, showing good compatibility with the material. All these properties make the memebranes attractive candidates for possible application in the electrochemical devices. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - Improved Poly(vinyl alcohol) (PVA) based matrix as a potential solid electrolyte for electrochemical energy conversion devices, obtained by gamma irradiation
VL  - 90
SP  - 595
EP  - 604
DO  - 10.1016/j.energy.2015.07.096
ER  - 
@article{
author = "Stosevski, Ivan and Krstić, Jelena I. and Vokic, Nikola and Radosavljevic, Miljan and Kačarević-Popović, Zorica M. and Miljanic, Seepan",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/799",
abstract = "PVA (Poly(vinyl alcohol)) matrixes were developed for potential application in electrochemical energy conversion devices, like batteries, alkaline fuel cells and electrolyzers. They were prepared by gamma-irradiation of aqueous PVA solutions, followed by different post irradiation treatments. By immersion in an electrolyte they become membranes with high ionic conductivities. The treatments were shown as the key factor determining the conductivity, through affecting their structure. An improved structure has large fractional free volume, and allows high electrolyte uptake and thus high conductivity (0.30 S cm(-1) -0.34 S cm(-1)). The structure, as well as the conductivity, has not been changed even after a period of 14 months, although the membranes have been exposed to strong alkaline medium. Besides high and long-term conductivity of the KOH doped membranes, other important properties for application in the devices were investigated, like thermal stability and gas crossover through the membranes. The 10% PVA(25kGy) membrane doped with saturated LiNO3 solution was tested in a rechargeable aqueous Li-ion battery. Due to its high conductivity it allowed an electrode material to have the same coulombic efficiency as it would have in liquid LiNO3, showing good compatibility with the material. All these properties make the memebranes attractive candidates for possible application in the electrochemical devices. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "Improved Poly(vinyl alcohol) (PVA) based matrix as a potential solid electrolyte for electrochemical energy conversion devices, obtained by gamma irradiation",
volume = "90",
pages = "595-604",
doi = "10.1016/j.energy.2015.07.096"
}
Stosevski, I., Krstić, J. I., Vokic, N., Radosavljevic, M., Kačarević-Popović, Z. M.,& Miljanic, S. (2015). Improved Poly(vinyl alcohol) (PVA) based matrix as a potential solid electrolyte for electrochemical energy conversion devices, obtained by gamma irradiation.
Energy, 90, 595-604.
https://doi.org/10.1016/j.energy.2015.07.096
Stosevski I, Krstić JI, Vokic N, Radosavljevic M, Kačarević-Popović ZM, Miljanic S. Improved Poly(vinyl alcohol) (PVA) based matrix as a potential solid electrolyte for electrochemical energy conversion devices, obtained by gamma irradiation. Energy. 2015;90:595-604
Stosevski Ivan, Krstić Jelena I., Vokic Nikola, Radosavljevic Miljan, Kačarević-Popović Zorica M., Miljanic Seepan, "Improved Poly(vinyl alcohol) (PVA) based matrix as a potential solid electrolyte for electrochemical energy conversion devices, obtained by gamma irradiation" Energy, 90 (2015):595-604,
https://doi.org/10.1016/j.energy.2015.07.096 .
17
16
19

Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation

Spasojević, Jelena P.; Radosavljević, Aleksandra; Krstić, Jelena I.; Jovanovic, Dragutin; Spasojević, Vuk D.; Kalagasidis-Krusic, Melina; Kačarević-Popović, Zorica M.

(2015)

TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena I.
AU  - Jovanovic, Dragutin
AU  - Spasojević, Vuk D.
AU  - Kalagasidis-Krusic, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/697
AB  - Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Youngs modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - European Polymer Journal
T1  - Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation
VL  - 69
SP  - 168
EP  - 185
DO  - 10.1016/j.eurpolymj.2015.06.008
ER  - 
@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena I. and Jovanovic, Dragutin and Spasojević, Vuk D. and Kalagasidis-Krusic, Melina and Kačarević-Popović, Zorica M.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/697",
abstract = "Thermo- and pH-sensitive Ag-P(NiPAAm/IA) hydrogel nanocomposites were prepared by in situ reduction of Ag+ ions with gamma irradiation. P(NiPAAm/IA) copolymer hydrogel matrices have been previously synthesized by radiation induced copolymerization. The copolymer composition was determined by elemental analysis of the dried gels, and was found to be close to that of the feed. The dependence of swelling properties and phase transitions on the IA comonomer content, temperature, pH values and presence of AgNPs were investigated. The hydrogels showed both thermo- and pH responses. By introducing small amounts of IA, swelling capacity increase, and the volume phase transition temperature (VPIT) of P(NiPAAm/IA) copolymers is transferred to higher values. Presence of AgNPs causes decrease of equilibrium swelling degree and VPIT, and allows of fine-tuning of these properties. Both the average values of compressive elastic modulus and Youngs modulus of elasticity were decreased by addition of IA as a consequence of looser structure of the network (increase in molar mass between two neighboring crosslinks and decrease in effective crosslinking density). The introduction of AgNPs promoted not only improvement of these mechanical parameters, but an improvement of stress at failure especially in the systems with the highest content of IA. In addition, Ag-P(NiPAAm/IA) hydrogel nanocomposites showed good antibacterial potentials. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "European Polymer Journal",
title = "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation",
volume = "69",
pages = "168-185",
doi = "10.1016/j.eurpolymj.2015.06.008"
}
Spasojević, J. P., Radosavljević, A., Krstić, J. I., Jovanovic, D., Spasojević, V. D., Kalagasidis-Krusic, M.,& Kačarević-Popović, Z. M. (2015). Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation.
European Polymer Journal, 69, 168-185.
https://doi.org/10.1016/j.eurpolymj.2015.06.008
Spasojević JP, Radosavljević A, Krstić JI, Jovanovic D, Spasojević VD, Kalagasidis-Krusic M, Kačarević-Popović ZM. Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation. European Polymer Journal. 2015;69:168-185
Spasojević Jelena P., Radosavljević Aleksandra, Krstić Jelena I., Jovanovic Dragutin, Spasojević Vuk D., Kalagasidis-Krusic Melina, Kačarević-Popović Zorica M., "Dual responsive antibacterial Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation" European Polymer Journal, 69 (2015):168-185,
https://doi.org/10.1016/j.eurpolymj.2015.06.008 .
28
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25

Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends

Krstić, Jelena I.; Spasojević, Jelena P.; Radosavljević, Aleksandra; Šiljegović, Milorad; Kačarević-Popović, Zorica M.

(2014)

TY  - JOUR
AU  - Krstić, Jelena I.
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5849
AB  - In this study, the potential of chitosan/poly(vinyl alcohol) (CS/PVA) blends as capping agent for stabilization of Ag-nanoparticles (Ag NPs) during their in situ gamma irradiation induced synthesis was investigated. The UV-vis absorption spectra show the surface plasmon absorption band around 410 nm, which confirms the formation of Ag-nanoparticles. It was found that the composition of CS/PVA blend affected the size of the obtained Ag-nanoparticles, as well as the parameters such as density, molar concentration and effective surface area, calculated from the experimentally obtained UV-vis absorption spectra and spectra obtained by simulation according to the Mie theory. SEM micrograph and XRD measurement indicated a spherical morphology and face centered cubic crystal structure of Ag-nanoparticles, with diameter around 12 nm. The values of optical band gap energy between valence and conduction bands (E-g), calculated from the UV-vis absorption spectra, also show dependence on the blend composition for Ag-CS/PVA colloids as well as for Ag-CS/PVA nanocomposites. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends
VL  - 96
SP  - 158
EP  - 166
DO  - 10.1016/j.radphyschem.2013.09.013
ER  - 
@article{
author = "Krstić, Jelena I. and Spasojević, Jelena P. and Radosavljević, Aleksandra and Šiljegović, Milorad and Kačarević-Popović, Zorica M.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5849",
abstract = "In this study, the potential of chitosan/poly(vinyl alcohol) (CS/PVA) blends as capping agent for stabilization of Ag-nanoparticles (Ag NPs) during their in situ gamma irradiation induced synthesis was investigated. The UV-vis absorption spectra show the surface plasmon absorption band around 410 nm, which confirms the formation of Ag-nanoparticles. It was found that the composition of CS/PVA blend affected the size of the obtained Ag-nanoparticles, as well as the parameters such as density, molar concentration and effective surface area, calculated from the experimentally obtained UV-vis absorption spectra and spectra obtained by simulation according to the Mie theory. SEM micrograph and XRD measurement indicated a spherical morphology and face centered cubic crystal structure of Ag-nanoparticles, with diameter around 12 nm. The values of optical band gap energy between valence and conduction bands (E-g), calculated from the UV-vis absorption spectra, also show dependence on the blend composition for Ag-CS/PVA colloids as well as for Ag-CS/PVA nanocomposites. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends",
volume = "96",
pages = "158-166",
doi = "10.1016/j.radphyschem.2013.09.013"
}
Krstić, J. I., Spasojević, J. P., Radosavljević, A., Šiljegović, M.,& Kačarević-Popović, Z. M. (2014). Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends.
Radiation Physics and Chemistry, 96, 158-166.
https://doi.org/10.1016/j.radphyschem.2013.09.013
Krstić JI, Spasojević JP, Radosavljević A, Šiljegović M, Kačarević-Popović ZM. Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends. Radiation Physics and Chemistry. 2014;96:158-166
Krstić Jelena I., Spasojević Jelena P., Radosavljević Aleksandra, Šiljegović Milorad, Kačarević-Popović Zorica M., "Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends" Radiation Physics and Chemistry, 96 (2014):158-166,
https://doi.org/10.1016/j.radphyschem.2013.09.013 .
1
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31

In Vitro Silver Ion Release Kinetics from Nanosilver/Poly(vinyl alcohol) Hydrogels Synthesized by Gamma Irradiation

Krstić, Jelena I.; Spasojević, Jelena P.; Radosavljević, Aleksandra; Perić-Grujić, Aleksandra A.; Duric, Momcilo; Kačarević-Popović, Zorica M.; Popovic, Srdan

(2014)

TY  - JOUR
AU  - Krstić, Jelena I.
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Perić-Grujić, Aleksandra A.
AU  - Duric, Momcilo
AU  - Kačarević-Popović, Zorica M.
AU  - Popovic, Srdan
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5910
AB  - A nanosilver (nano-Ag)/poly(vinyl alcohol) (PVA) hydrogel device was synthesized with irradiation because it is a highly suitable tool for enhanced nano-Ag technologies and biocompatible controlled release formulations. The amount of the Ag+ ions released in vitro by the nano-Ag/PVA hydrogel device was in the antimicrobial parts per million concentration range. The modeling of the Ag+ ion release kinetics with the elements of the drug-delivery paradigm revealed the best fit solution (R-2 GT 0.99) for the Kopcha and Makoid-Banakars pharmacokinetic dissolution models. The term A/B, derived from the Kopcha model, indicated that the nano-Ag/PVA hydrogel was mainly an Ag+-ion diffusion-controlled device. Makoid-Banakars parameter and the short time approximated Ag+-ion diffusion constant reflected the importance of the size of the Ag nanoparticles. However, it appeared that the cell oxidation potential of the Ag nanoparticles depended on the diffusion characteristics of the fluid penetrating into the Ag/PVA nanosystem. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40321.
T2  - Journal of Applied Polymer Science
T1  - In Vitro Silver Ion Release Kinetics from Nanosilver/Poly(vinyl alcohol) Hydrogels Synthesized by Gamma Irradiation
VL  - 131
IS  - 11
DO  - 10.1002/app.40321
ER  - 
@article{
author = "Krstić, Jelena I. and Spasojević, Jelena P. and Radosavljević, Aleksandra and Perić-Grujić, Aleksandra A. and Duric, Momcilo and Kačarević-Popović, Zorica M. and Popovic, Srdan",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5910",
abstract = "A nanosilver (nano-Ag)/poly(vinyl alcohol) (PVA) hydrogel device was synthesized with irradiation because it is a highly suitable tool for enhanced nano-Ag technologies and biocompatible controlled release formulations. The amount of the Ag+ ions released in vitro by the nano-Ag/PVA hydrogel device was in the antimicrobial parts per million concentration range. The modeling of the Ag+ ion release kinetics with the elements of the drug-delivery paradigm revealed the best fit solution (R-2 GT 0.99) for the Kopcha and Makoid-Banakars pharmacokinetic dissolution models. The term A/B, derived from the Kopcha model, indicated that the nano-Ag/PVA hydrogel was mainly an Ag+-ion diffusion-controlled device. Makoid-Banakars parameter and the short time approximated Ag+-ion diffusion constant reflected the importance of the size of the Ag nanoparticles. However, it appeared that the cell oxidation potential of the Ag nanoparticles depended on the diffusion characteristics of the fluid penetrating into the Ag/PVA nanosystem. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40321.",
journal = "Journal of Applied Polymer Science",
title = "In Vitro Silver Ion Release Kinetics from Nanosilver/Poly(vinyl alcohol) Hydrogels Synthesized by Gamma Irradiation",
volume = "131",
number = "11",
doi = "10.1002/app.40321"
}
Krstić, J. I., Spasojević, J. P., Radosavljević, A., Perić-Grujić, A. A., Duric, M., Kačarević-Popović, Z. M.,& Popovic, S. (2014). In Vitro Silver Ion Release Kinetics from Nanosilver/Poly(vinyl alcohol) Hydrogels Synthesized by Gamma Irradiation.
Journal of Applied Polymer Science, 131(11).
https://doi.org/10.1002/app.40321
Krstić JI, Spasojević JP, Radosavljević A, Perić-Grujić AA, Duric M, Kačarević-Popović ZM, Popovic S. In Vitro Silver Ion Release Kinetics from Nanosilver/Poly(vinyl alcohol) Hydrogels Synthesized by Gamma Irradiation. Journal of Applied Polymer Science. 2014;131(11)
Krstić Jelena I., Spasojević Jelena P., Radosavljević Aleksandra, Perić-Grujić Aleksandra A., Duric Momcilo, Kačarević-Popović Zorica M., Popovic Srdan, "In Vitro Silver Ion Release Kinetics from Nanosilver/Poly(vinyl alcohol) Hydrogels Synthesized by Gamma Irradiation" Journal of Applied Polymer Science, 131, no. 11 (2014),
https://doi.org/10.1002/app.40321 .
22
19
21

Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications

Jovanović, Željka; Radosavljević, Aleksandra; Stojkovska, Jasmina; Nikolić, Branislav Ž.; Obradovic, Bojana; Kačarević-Popović, Zorica M.; Miskovic-Stankovic, Vesna

(2014)

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Stojkovska, Jasmina
AU  - Nikolić, Branislav Ž.
AU  - Obradovic, Bojana
AU  - Kačarević-Popović, Zorica M.
AU  - Miskovic-Stankovic, Vesna
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5834
AB  - Silver nanoparticles were produced inside a poly(N-vinyl-2-pyrrolidone) hydrogel (PVP) by an innovative method based on the electrochemical reduction of Ag+ ions within the swollen PVP hydrogel. UV-visible spectroscopy showed the highest value of the absorbance intensity and the lowest values of the wavelength of the absorbance maximum and the full width at the half-maximum absorbance for the Ag/PVP nanocomposite obtained at 200 V during 4 min. Cyclic voltammetry results suggested an adequate entrapment of the silver nanoparticles. The mechanical properties under bioreactor conditions of the Ag/PVP nanocomposite suggested the possibility of wound dressing application. Silver release from Ag/PVP nanocomposites was confirmed under static conditions as well as by their antimicrobial activity against Staphylococcus aureus. POLYM. COMPOS., 35:217-226, 2014. (c) 2013 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications
VL  - 35
IS  - 2
SP  - 217
EP  - 226
DO  - 10.1002/pc.22653
ER  - 
@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Stojkovska, Jasmina and Nikolić, Branislav Ž. and Obradovic, Bojana and Kačarević-Popović, Zorica M. and Miskovic-Stankovic, Vesna",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5834",
abstract = "Silver nanoparticles were produced inside a poly(N-vinyl-2-pyrrolidone) hydrogel (PVP) by an innovative method based on the electrochemical reduction of Ag+ ions within the swollen PVP hydrogel. UV-visible spectroscopy showed the highest value of the absorbance intensity and the lowest values of the wavelength of the absorbance maximum and the full width at the half-maximum absorbance for the Ag/PVP nanocomposite obtained at 200 V during 4 min. Cyclic voltammetry results suggested an adequate entrapment of the silver nanoparticles. The mechanical properties under bioreactor conditions of the Ag/PVP nanocomposite suggested the possibility of wound dressing application. Silver release from Ag/PVP nanocomposites was confirmed under static conditions as well as by their antimicrobial activity against Staphylococcus aureus. POLYM. COMPOS., 35:217-226, 2014. (c) 2013 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications",
volume = "35",
number = "2",
pages = "217-226",
doi = "10.1002/pc.22653"
}
Jovanović, Ž., Radosavljević, A., Stojkovska, J., Nikolić, B. Ž., Obradovic, B., Kačarević-Popović, Z. M.,& Miskovic-Stankovic, V. (2014). Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications.
Polymer Composites, 35(2), 217-226.
https://doi.org/10.1002/pc.22653
Jovanović Ž, Radosavljević A, Stojkovska J, Nikolić BŽ, Obradovic B, Kačarević-Popović ZM, Miskovic-Stankovic V. Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications. Polymer Composites. 2014;35(2):217-226
Jovanović Željka, Radosavljević Aleksandra, Stojkovska Jasmina, Nikolić Branislav Ž., Obradovic Bojana, Kačarević-Popović Zorica M., Miskovic-Stankovic Vesna, "Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications" Polymer Composites, 35, no. 2 (2014):217-226,
https://doi.org/10.1002/pc.22653 .
11
13
12

Spectroscopic ellipsometry study of N+ ion-implanted ethylene-norbornene films

Šiljegović, Milorad; Kačarević-Popović, Zorica M.; Stchakovsky, M.; Radosavljević, Aleksandra; Korica, S.; Novaković, Mirjana M.; Popović, Maja

(2014)

TY  - JOUR
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Stchakovsky, M.
AU  - Radosavljević, Aleksandra
AU  - Korica, S.
AU  - Novaković, Mirjana M.
AU  - Popović, Maja
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5943
AB  - The optical properties of 150 keV N+ implanted ethylene-norbornene (TOPAS 6017S-04) copolymer were investigated using phase modulated spectroscopic ellipsometry (PMSE) and ultraviolet-visible (UV-Vis) spectroscopy in the ranges of 0.6-6.5 eV and of 1.5-6.2 eV, respectively. The single-effectiveoscillator model was used to fit the calculated data to the experimental ellipsometric spectra. The results show that the oscillator and dispersion energies decrease with increasing ion fluence up to 10(15) cm(-2), and then these parameters increase with further fluence increasing. Analysis of the UV-Vis absorption spectra revealed the presence of indirect electronic transitions with the band gap energy in the range of 1.3 to 2.8 eV. It was found that both the band gap energy and the energy width of the distribution of localized band tail states decrease, while the values of Tauc coefficient increase with increasing the ion fluence. From the ellipsometric data we found that the real part of the dielectric function increased about 7% after irradiation with 10(15) cm(-2), and decreased about 10% in samples modified with 10(16) cm(-2).
T2  - Radiation Physics and Chemistry
T1  - Spectroscopic ellipsometry study of N+ ion-implanted ethylene-norbornene films
VL  - 98
SP  - 7
EP  - 13
DO  - 10.1016/j.radphyschem.2013.12.023
ER  - 
@article{
author = "Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Stchakovsky, M. and Radosavljević, Aleksandra and Korica, S. and Novaković, Mirjana M. and Popović, Maja",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5943",
abstract = "The optical properties of 150 keV N+ implanted ethylene-norbornene (TOPAS 6017S-04) copolymer were investigated using phase modulated spectroscopic ellipsometry (PMSE) and ultraviolet-visible (UV-Vis) spectroscopy in the ranges of 0.6-6.5 eV and of 1.5-6.2 eV, respectively. The single-effectiveoscillator model was used to fit the calculated data to the experimental ellipsometric spectra. The results show that the oscillator and dispersion energies decrease with increasing ion fluence up to 10(15) cm(-2), and then these parameters increase with further fluence increasing. Analysis of the UV-Vis absorption spectra revealed the presence of indirect electronic transitions with the band gap energy in the range of 1.3 to 2.8 eV. It was found that both the band gap energy and the energy width of the distribution of localized band tail states decrease, while the values of Tauc coefficient increase with increasing the ion fluence. From the ellipsometric data we found that the real part of the dielectric function increased about 7% after irradiation with 10(15) cm(-2), and decreased about 10% in samples modified with 10(16) cm(-2).",
journal = "Radiation Physics and Chemistry",
title = "Spectroscopic ellipsometry study of N+ ion-implanted ethylene-norbornene films",
volume = "98",
pages = "7-13",
doi = "10.1016/j.radphyschem.2013.12.023"
}
Šiljegović, M., Kačarević-Popović, Z. M., Stchakovsky, M., Radosavljević, A., Korica, S., Novaković, M. M.,& Popović, M. (2014). Spectroscopic ellipsometry study of N+ ion-implanted ethylene-norbornene films.
Radiation Physics and Chemistry, 98, 7-13.
https://doi.org/10.1016/j.radphyschem.2013.12.023
Šiljegović M, Kačarević-Popović ZM, Stchakovsky M, Radosavljević A, Korica S, Novaković MM, Popović M. Spectroscopic ellipsometry study of N+ ion-implanted ethylene-norbornene films. Radiation Physics and Chemistry. 2014;98:7-13
Šiljegović Milorad, Kačarević-Popović Zorica M., Stchakovsky M., Radosavljević Aleksandra, Korica S., Novaković Mirjana M., Popović Maja, "Spectroscopic ellipsometry study of N+ ion-implanted ethylene-norbornene films" Radiation Physics and Chemistry, 98 (2014):7-13,
https://doi.org/10.1016/j.radphyschem.2013.12.023 .
2
2
2

Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)/magnetite ferrogel composite

Marinović-Cincović, Milena; Radosavljević, Aleksandra; Krstić, Jelena I.; Spasojević, Jelena P.; Bibić, Nataša M.; Mitrić, Miodrag; Kačarević-Popović, Zorica M.

(2014)

TY  - JOUR
AU  - Marinović-Cincović, Milena
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena I.
AU  - Spasojević, Jelena P.
AU  - Bibić, Nataša M.
AU  - Mitrić, Miodrag
AU  - Kačarević-Popović, Zorica M.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/370
AB  - Magnetic field sensitive gels, ferrogels, are new promising class of hydrogels. The coupling of hydrogels and magnetic particles has potential application in soft actuators, such as artificial muscles, or for hyperthermia application. In this study, the composite of magnetite particles (Fe3O4) and poly(vinyl alcohol) (PVA) hydrogel is developed using gamma irradiation as a crosslinking agent. PVA and Fe3O4 were chosen due to their well-established biocompatibility, radiation crosslinking potential (PVA), mild magnetic properties and the Curie point near desired heating temperature range (Fe3O4). Physicochemical characteristics of these systems show the effect of the presence of particles in the process of radiation-induced crosslinking. Obtained PVA/Fe3O4 ferrogel composite has greater swelling capacity, activation energy of dehydration and dehydration rate compared to PVA hydrogel, crosslinked under the same conditions.
T2  - Hemijska industrija
T1  - Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)/magnetite ferrogel composite
VL  - 68
IS  - 6
SP  - 743
EP  - 753
DO  - 10.2298/HEMIND141104081M
ER  - 
@article{
author = "Marinović-Cincović, Milena and Radosavljević, Aleksandra and Krstić, Jelena I. and Spasojević, Jelena P. and Bibić, Nataša M. and Mitrić, Miodrag and Kačarević-Popović, Zorica M.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/370",
abstract = "Magnetic field sensitive gels, ferrogels, are new promising class of hydrogels. The coupling of hydrogels and magnetic particles has potential application in soft actuators, such as artificial muscles, or for hyperthermia application. In this study, the composite of magnetite particles (Fe3O4) and poly(vinyl alcohol) (PVA) hydrogel is developed using gamma irradiation as a crosslinking agent. PVA and Fe3O4 were chosen due to their well-established biocompatibility, radiation crosslinking potential (PVA), mild magnetic properties and the Curie point near desired heating temperature range (Fe3O4). Physicochemical characteristics of these systems show the effect of the presence of particles in the process of radiation-induced crosslinking. Obtained PVA/Fe3O4 ferrogel composite has greater swelling capacity, activation energy of dehydration and dehydration rate compared to PVA hydrogel, crosslinked under the same conditions.",
journal = "Hemijska industrija",
title = "Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)/magnetite ferrogel composite",
volume = "68",
number = "6",
pages = "743-753",
doi = "10.2298/HEMIND141104081M"
}
Marinović-Cincović, M., Radosavljević, A., Krstić, J. I., Spasojević, J. P., Bibić, N. M., Mitrić, M.,& Kačarević-Popović, Z. M. (2014). Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)/magnetite ferrogel composite.
Hemijska industrija, 68(6), 743-753.
https://doi.org/10.2298/HEMIND141104081M
Marinović-Cincović M, Radosavljević A, Krstić JI, Spasojević JP, Bibić NM, Mitrić M, Kačarević-Popović ZM. Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)/magnetite ferrogel composite. Hemijska industrija. 2014;68(6):743-753
Marinović-Cincović Milena, Radosavljević Aleksandra, Krstić Jelena I., Spasojević Jelena P., Bibić Nataša M., Mitrić Miodrag, Kačarević-Popović Zorica M., "Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)/magnetite ferrogel composite" Hemijska industrija, 68, no. 6 (2014):743-753,
https://doi.org/10.2298/HEMIND141104081M .
8
6
4

MALDI TOF and theoretical investigation of silver clusters obtained by gamma irradiation

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.

(2013)

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  - http://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",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5207",
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.
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. Vacuum. 2013;89(SI):47-52
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" Vacuum, 89, no. SI (2013):47-52,
https://doi.org/10.1016/j.vacuum.2012.08.016 .
6
7
7

Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites

Jovanović, Željka; Radosavljević, Aleksandra; Kačarević-Popović, Zorica M.; Stojkovska, Jasmina; Perić-Grujić, Aleksandra A.; Ristić, Mirjana; Matić, Ivana Z.; Juranic, Zorica D.; Obradovic, Bojana; Miskovic-Stankovic, Vesna

(2013)

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Kačarević-Popović, Zorica M.
AU  - Stojkovska, Jasmina
AU  - Perić-Grujić, Aleksandra A.
AU  - Ristić, Mirjana
AU  - Matić, Ivana Z.
AU  - Juranic, Zorica D.
AU  - Obradovic, Bojana
AU  - Miskovic-Stankovic, Vesna
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5379
AB  - Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites containing Ag nanoparticles at different concentrations were synthesized using gamma-irradiation. Cytotoxicity of the obtained nanocomposites was determined by MU assay in monolayer cultures of normal human immunocompetent peripheral blood mononuclear cells (PBMC) that were either non-stimulated or stimulated to proliferate by mitogen phytohemagglutinin (PHA), as well as in human cervix adenocarcinoma cell (HeLa) cultures. Silver release kinetics and mechanical properties of nanocomposites were investigated under bioreactor conditions in the simulated body fluid (SBF) at 37 degrees C. The release of silver was monitored under static conditions, and in two types of bioreactors: perfusion bioreactors and a bioreactor with dynamic compression coupled with SBF perfusion simulating in vivo conditions in articular cartilage. Ag/PVP nanocomposites exhibited slight cytotoxic effects against PBMC at the estimated concentration of 0.4 mu mol dm(-3), with negligible variations observed amongst different cell cultures investigated. Studies of the silver release kinetics indicated internal diffusion as the rate limiting step, determined by statistically comparable results obtained at all investigated conditions. However, silver release rate was slightly higher in the bioreactor with dynamic compression coupled with SBF perfusion as compared to the other two systems indicating the influence of dynamic compression. Modelling of silver release kinetics revealed potentials for optimization of Ag/PVP nanocomposites for particular applications as wound dressings or soft tissue implants. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. B: Biointerfaces
T1  - Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites
VL  - 105
SP  - 230
EP  - 235
DO  - 10.1016/j.colsurfb.2012.12.055
ER  - 
@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Kačarević-Popović, Zorica M. and Stojkovska, Jasmina and Perić-Grujić, Aleksandra A. and Ristić, Mirjana and Matić, Ivana Z. and Juranic, Zorica D. and Obradovic, Bojana and Miskovic-Stankovic, Vesna",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5379",
abstract = "Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites containing Ag nanoparticles at different concentrations were synthesized using gamma-irradiation. Cytotoxicity of the obtained nanocomposites was determined by MU assay in monolayer cultures of normal human immunocompetent peripheral blood mononuclear cells (PBMC) that were either non-stimulated or stimulated to proliferate by mitogen phytohemagglutinin (PHA), as well as in human cervix adenocarcinoma cell (HeLa) cultures. Silver release kinetics and mechanical properties of nanocomposites were investigated under bioreactor conditions in the simulated body fluid (SBF) at 37 degrees C. The release of silver was monitored under static conditions, and in two types of bioreactors: perfusion bioreactors and a bioreactor with dynamic compression coupled with SBF perfusion simulating in vivo conditions in articular cartilage. Ag/PVP nanocomposites exhibited slight cytotoxic effects against PBMC at the estimated concentration of 0.4 mu mol dm(-3), with negligible variations observed amongst different cell cultures investigated. Studies of the silver release kinetics indicated internal diffusion as the rate limiting step, determined by statistically comparable results obtained at all investigated conditions. However, silver release rate was slightly higher in the bioreactor with dynamic compression coupled with SBF perfusion as compared to the other two systems indicating the influence of dynamic compression. Modelling of silver release kinetics revealed potentials for optimization of Ag/PVP nanocomposites for particular applications as wound dressings or soft tissue implants. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. B: Biointerfaces",
title = "Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites",
volume = "105",
pages = "230-235",
doi = "10.1016/j.colsurfb.2012.12.055"
}
Jovanović, Ž., Radosavljević, A., Kačarević-Popović, Z. M., Stojkovska, J., Perić-Grujić, A. A., Ristić, M., Matić, I. Z., Juranic, Z. D., Obradovic, B.,& Miskovic-Stankovic, V. (2013). Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites.
Colloids and Surfaces. B: Biointerfaces, 105, 230-235.
https://doi.org/10.1016/j.colsurfb.2012.12.055
Jovanović Ž, Radosavljević A, Kačarević-Popović ZM, Stojkovska J, Perić-Grujić AA, Ristić M, Matić IZ, Juranic ZD, Obradovic B, Miskovic-Stankovic V. Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites. Colloids and Surfaces. B: Biointerfaces. 2013;105:230-235
Jovanović Željka, Radosavljević Aleksandra, Kačarević-Popović Zorica M., Stojkovska Jasmina, Perić-Grujić Aleksandra A., Ristić Mirjana, Matić Ivana Z., Juranic Zorica D., Obradovic Bojana, Miskovic-Stankovic Vesna, "Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites" Colloids and Surfaces. B: Biointerfaces, 105 (2013):230-235,
https://doi.org/10.1016/j.colsurfb.2012.12.055 .
23
25
24

Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method

Radosavljević, Aleksandra; Božanić, Dušan K.; Bibić, Nataša M.; Mitrić, Miodrag; Kačarević-Popović, Zorica M.; Nedeljković, Jovan

(2012)

TY  - JOUR
AU  - Radosavljević, Aleksandra
AU  - Božanić, Dušan K.
AU  - Bibić, Nataša M.
AU  - Mitrić, Miodrag
AU  - Kačarević-Popović, Zorica M.
AU  - Nedeljković, Jovan
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4772
AB  - Gamma-irradiation induced reduction of gold (Au) ions was performed in aqueous poly(vinyl alcohol) (PVA) solution. PVA/Au nanocomposites with different contents of inorganic phase were prepared by solvent evaporation. The colloids and corresponding nanocomposites show visible light absorption with strong excitonic peak in the wavelength range from 520 to 550 nm. Morphological and structural characterizations of gold nanoparticles (Au NPs) and nanocomposites were performed by TEM, XRD, and FTIR measurements. Also, Mie and Maxwell-Garnett theories were applied to calculate optical properties of Au colloids and PVA/Au nanocomposites, respectively. The changes of heat resistance upon the increase of inorganic phase were correlated to the decrease in crystal perfection of polymer. Improvement of thermal stability of nanocomposites, compared with the neat PVA, was observed when the content of inorganic phase exceeds 1 wt %. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
T2  - Journal of Applied Polymer Science
T1  - Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method
VL  - 125
IS  - 2
SP  - 1244
EP  - 1251
DO  - 10.1002/app.34992
ER  - 
@article{
author = "Radosavljević, Aleksandra and Božanić, Dušan K. and Bibić, Nataša M. and Mitrić, Miodrag and Kačarević-Popović, Zorica M. and Nedeljković, Jovan",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4772",
abstract = "Gamma-irradiation induced reduction of gold (Au) ions was performed in aqueous poly(vinyl alcohol) (PVA) solution. PVA/Au nanocomposites with different contents of inorganic phase were prepared by solvent evaporation. The colloids and corresponding nanocomposites show visible light absorption with strong excitonic peak in the wavelength range from 520 to 550 nm. Morphological and structural characterizations of gold nanoparticles (Au NPs) and nanocomposites were performed by TEM, XRD, and FTIR measurements. Also, Mie and Maxwell-Garnett theories were applied to calculate optical properties of Au colloids and PVA/Au nanocomposites, respectively. The changes of heat resistance upon the increase of inorganic phase were correlated to the decrease in crystal perfection of polymer. Improvement of thermal stability of nanocomposites, compared with the neat PVA, was observed when the content of inorganic phase exceeds 1 wt %. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012",
journal = "Journal of Applied Polymer Science",
title = "Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method",
volume = "125",
number = "2",
pages = "1244-1251",
doi = "10.1002/app.34992"
}
Radosavljević, A., Božanić, D. K., Bibić, N. M., Mitrić, M., Kačarević-Popović, Z. M.,& Nedeljković, J. (2012). Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method.
Journal of Applied Polymer Science, 125(2), 1244-1251.
https://doi.org/10.1002/app.34992
Radosavljević A, Božanić DK, Bibić NM, Mitrić M, Kačarević-Popović ZM, Nedeljković J. Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method. Journal of Applied Polymer Science. 2012;125(2):1244-1251
Radosavljević Aleksandra, Božanić Dušan K., Bibić Nataša M., Mitrić Miodrag, Kačarević-Popović Zorica M., Nedeljković Jovan, "Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method" Journal of Applied Polymer Science, 125, no. 2 (2012):1244-1251,
https://doi.org/10.1002/app.34992 .
15
14
15

Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation

Jovanović, Željka; Radosavljević, Aleksandra; Šiljegović, Milorad; Bibić, Nataša M.; Miskovic-Stankovic, Vesna; Kačarević-Popović, Zorica M.

(2012)

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Šiljegović, Milorad
AU  - Bibić, Nataša M.
AU  - Miskovic-Stankovic, Vesna
AU  - Kačarević-Popović, Zorica M.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5022
AB  - Silver nanoparticles (AgNPs) were synthesized in situ by gamma-irradiation using poly(N-vinyl-2-pyrrolidone) (PVP) as a capping agent. The concentration, molecular weight and the structure (crosslinked and interpenetrated network) of PVP were varied, in order to determine the influence of the capping agent in the radiolytic synthesis of the Ag/PVP nanosystems. Transmission electron microscopy (TEM) showed that AgNPs obtained from the solutions containing higher PVP concentration and higher molecular weight were spherical in shape, with narrow size distribution and a diameter of similar to 6 nm, while slightly larger rod-shaped silver agglomerates, with bimodal nanoparticle size distribution and diameters of similar to 10 nm and similar to 20 nm were obtained from the solutions containing lower PVP concentration and lower molecular weight. Strong plasmon coupling and extending of plasmon resonance was observed by UV-vis spectroscopy, as a result of formation of nanorod-like agglomerates. Crosslinked and interpenetrated network did not affect the structure of synthesized AgNPs. Ag/PVP nanocomposite, in the form of thin film, was obtained by solvent evaporation from Ag/PVP colloid solution with 10 wt% of PVP, and characterized by FTIR spectroscopy. The interactions in Ag/PVP nanocomposite are shown to be the result of the coordination bonding between AgNPs and nitrogen from pyrrolidone ring of PVP. The optical properties of investigated Ag/PVP nanosystems, as measured by the values of optical band gap, E-g, are mainly the consequence of the interparticle distance as a result of the concentration and the structure of surrounding PVP macromolecules. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation
VL  - 81
IS  - 11
SP  - 1720
EP  - 1728
DO  - 10.1016/j.radphyschem.2012.05.019
ER  - 
@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Šiljegović, Milorad and Bibić, Nataša M. and Miskovic-Stankovic, Vesna and Kačarević-Popović, Zorica M.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5022",
abstract = "Silver nanoparticles (AgNPs) were synthesized in situ by gamma-irradiation using poly(N-vinyl-2-pyrrolidone) (PVP) as a capping agent. The concentration, molecular weight and the structure (crosslinked and interpenetrated network) of PVP were varied, in order to determine the influence of the capping agent in the radiolytic synthesis of the Ag/PVP nanosystems. Transmission electron microscopy (TEM) showed that AgNPs obtained from the solutions containing higher PVP concentration and higher molecular weight were spherical in shape, with narrow size distribution and a diameter of similar to 6 nm, while slightly larger rod-shaped silver agglomerates, with bimodal nanoparticle size distribution and diameters of similar to 10 nm and similar to 20 nm were obtained from the solutions containing lower PVP concentration and lower molecular weight. Strong plasmon coupling and extending of plasmon resonance was observed by UV-vis spectroscopy, as a result of formation of nanorod-like agglomerates. Crosslinked and interpenetrated network did not affect the structure of synthesized AgNPs. Ag/PVP nanocomposite, in the form of thin film, was obtained by solvent evaporation from Ag/PVP colloid solution with 10 wt% of PVP, and characterized by FTIR spectroscopy. The interactions in Ag/PVP nanocomposite are shown to be the result of the coordination bonding between AgNPs and nitrogen from pyrrolidone ring of PVP. The optical properties of investigated Ag/PVP nanosystems, as measured by the values of optical band gap, E-g, are mainly the consequence of the interparticle distance as a result of the concentration and the structure of surrounding PVP macromolecules. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation",
volume = "81",
number = "11",
pages = "1720-1728",
doi = "10.1016/j.radphyschem.2012.05.019"
}
Jovanović, Ž., Radosavljević, A., Šiljegović, M., Bibić, N. M., Miskovic-Stankovic, V.,& Kačarević-Popović, Z. M. (2012). Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation.
Radiation Physics and Chemistry, 81(11), 1720-1728.
https://doi.org/10.1016/j.radphyschem.2012.05.019
Jovanović Ž, Radosavljević A, Šiljegović M, Bibić NM, Miskovic-Stankovic V, Kačarević-Popović ZM. Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation. Radiation Physics and Chemistry. 2012;81(11):1720-1728
Jovanović Željka, Radosavljević Aleksandra, Šiljegović Milorad, Bibić Nataša M., Miskovic-Stankovic Vesna, Kačarević-Popović Zorica M., "Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation" Radiation Physics and Chemistry, 81, no. 11 (2012):1720-1728,
https://doi.org/10.1016/j.radphyschem.2012.05.019 .
29
30
29

Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)

Šiljegović, Milorad; Kačarević-Popović, Zorica M.; Krklješ, Aleksandra N.; Stojanović, Zoran A.; Jovanović, Zoran M.

(2011)

TY  - JOUR
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Krklješ, Aleksandra N.
AU  - Stojanović, Zoran A.
AU  - Jovanović, Zoran M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4263
AB  - Ion bombardment is a suitable tool to modify the optical properties of polymers. In the present study the effect of ion bombardment on the optical absorption of ethylene-norbornene copolymer (TOPAS) was studied using ultraviolet-visible (UV-Vis) and Raman spectroscopy. Polymer samples were bombarded with 60 key C4+ and N4+ ion beams to various fluences ranging from 1.0 x 10(13) to 1.0 x 10(16) cm(-2). The indirect and direct band gaps have been determined. The values of direct band gaps have been found to be greater than the corresponding values of the indirect band gaps. Activation energy has been investigated as the function of ion fluences. The number of carbon atoms per conjugated length is determined according to modified Taucs equation. The correlation between the optical band gap, activation energy for optical transition and the number of carbon atoms per conjugated length as well as chemical structure changes induced by ion beams irradiation have been discussed in the case of ethylene-norbornene copolymer. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)
VL  - 269
IS  - 7
SP  - 708
EP  - 715
DO  - 10.1016/j.nimb.2011.01.134
ER  - 
@article{
author = "Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Krklješ, Aleksandra N. and Stojanović, Zoran A. and Jovanović, Zoran M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4263",
abstract = "Ion bombardment is a suitable tool to modify the optical properties of polymers. In the present study the effect of ion bombardment on the optical absorption of ethylene-norbornene copolymer (TOPAS) was studied using ultraviolet-visible (UV-Vis) and Raman spectroscopy. Polymer samples were bombarded with 60 key C4+ and N4+ ion beams to various fluences ranging from 1.0 x 10(13) to 1.0 x 10(16) cm(-2). The indirect and direct band gaps have been determined. The values of direct band gaps have been found to be greater than the corresponding values of the indirect band gaps. Activation energy has been investigated as the function of ion fluences. The number of carbon atoms per conjugated length is determined according to modified Taucs equation. The correlation between the optical band gap, activation energy for optical transition and the number of carbon atoms per conjugated length as well as chemical structure changes induced by ion beams irradiation have been discussed in the case of ethylene-norbornene copolymer. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)",
volume = "269",
number = "7",
pages = "708-715",
doi = "10.1016/j.nimb.2011.01.134"
}
Šiljegović, M., Kačarević-Popović, Z. M., Krklješ, A. N., Stojanović, Z. A.,& Jovanović, Z. M. (2011). Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS).
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(7), 708-715.
https://doi.org/10.1016/j.nimb.2011.01.134
Šiljegović M, Kačarević-Popović ZM, Krklješ AN, Stojanović ZA, Jovanović ZM. Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS). Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(7):708-715
Šiljegović Milorad, Kačarević-Popović Zorica M., Krklješ Aleksandra N., Stojanović Zoran A., Jovanović Zoran M., "Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)" Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 7 (2011):708-715,
https://doi.org/10.1016/j.nimb.2011.01.134 .
13
9
12

Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method

Jovanović, Željka; Krklješ, Aleksandra N.; Stojkovska, Jasmina; Tomic, Simonida; Obradovic, Bojana; Miskovic-Stankovic, Vesna; Kačarević-Popović, Zorica M.

(2011)

TY  - JOUR
AU  - Jovanović, Željka
AU  - Krklješ, Aleksandra N.
AU  - Stojkovska, Jasmina
AU  - Tomic, Simonida
AU  - Obradovic, Bojana
AU  - Miskovic-Stankovic, Vesna
AU  - Kačarević-Popović, Zorica M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4471
AB  - This work describes radiolytic synthesis of silver nanoparticles (Ag NPs) within the poly(N-vinyl-2-pyrrolidone) (PVP) hydrogel. The hydrogel matrix was obtained by gamma irradiation-induced cross-linking, while the in situ reduction of Ag(+) ions was performed using strong reducing species formed under water radiolysis. Absorption spectrum of the Ag/PVP nanocomposite confirmed the formation of Ag NPs, showing the surface plasmon band maxima at 405 nm. Ag/PVP nanocomposites were characterized by XRD and TEM analysis, accompanied with investigations of swelling and diffusion properties in the simulated body fluid at 37 degrees C, and mechanical properties in bioreactor conditions. It was shown that Ag/PVP nanocomposite exhibited higher values of equilibrium swelling degree, Youngs modulus, and molar mass between crosslinks, while lower values of the diffusion coefficient and effective crosslink density were obtained, as compared to the pure PVP. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method
VL  - 80
IS  - 11
SP  - 1208
EP  - 1215
DO  - 10.1016/j.radphyschem.2011.06.005
ER  - 
@article{
author = "Jovanović, Željka and Krklješ, Aleksandra N. and Stojkovska, Jasmina and Tomic, Simonida and Obradovic, Bojana and Miskovic-Stankovic, Vesna and Kačarević-Popović, Zorica M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4471",
abstract = "This work describes radiolytic synthesis of silver nanoparticles (Ag NPs) within the poly(N-vinyl-2-pyrrolidone) (PVP) hydrogel. The hydrogel matrix was obtained by gamma irradiation-induced cross-linking, while the in situ reduction of Ag(+) ions was performed using strong reducing species formed under water radiolysis. Absorption spectrum of the Ag/PVP nanocomposite confirmed the formation of Ag NPs, showing the surface plasmon band maxima at 405 nm. Ag/PVP nanocomposites were characterized by XRD and TEM analysis, accompanied with investigations of swelling and diffusion properties in the simulated body fluid at 37 degrees C, and mechanical properties in bioreactor conditions. It was shown that Ag/PVP nanocomposite exhibited higher values of equilibrium swelling degree, Youngs modulus, and molar mass between crosslinks, while lower values of the diffusion coefficient and effective crosslink density were obtained, as compared to the pure PVP. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method",
volume = "80",
number = "11",
pages = "1208-1215",
doi = "10.1016/j.radphyschem.2011.06.005"
}
Jovanović, Ž., Krklješ, A. N., Stojkovska, J., Tomic, S., Obradovic, B., Miskovic-Stankovic, V.,& Kačarević-Popović, Z. M. (2011). Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method.
Radiation Physics and Chemistry, 80(11), 1208-1215.
https://doi.org/10.1016/j.radphyschem.2011.06.005
Jovanović Ž, Krklješ AN, Stojkovska J, Tomic S, Obradovic B, Miskovic-Stankovic V, Kačarević-Popović ZM. Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method. Radiation Physics and Chemistry. 2011;80(11):1208-1215
Jovanović Željka, Krklješ Aleksandra N., Stojkovska Jasmina, Tomic Simonida, Obradovic Bojana, Miskovic-Stankovic Vesna, Kačarević-Popović Zorica M., "Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method" Radiation Physics and Chemistry, 80, no. 11 (2011):1208-1215,
https://doi.org/10.1016/j.radphyschem.2011.06.005 .
54
53
49

Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams

Šiljegović, Milorad; Kačarević-Popović, Zorica M.; Bibić, Nataša M.; Jovanović, Zoran M.; Maletić, Slobodan; Stchakovsky, M.; Krklješ, Aleksandra N.

(2011)

TY  - JOUR
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Bibić, Nataša M.
AU  - Jovanović, Zoran M.
AU  - Maletić, Slobodan
AU  - Stchakovsky, M.
AU  - Krklješ, Aleksandra N.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4516
AB  - Fluorinated ethylene propylene (FEP) and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) (PFA) copolymer films were irradiated in vacuum with 60 key C4+ and N4+ ions to fluences ranging from 1.0 x 10(12) to 5.0 x 10(15) cm(-2). Changes in optical and dielectric properties were analyzed by spectroscopic ellipsometry and ultraviolet-visible (UV-vis), Raman and dielectric relaxation spectroscopies. Direct and indirect energy band gap values were determined from the absorption edge in the 200-800 nm region using Taucs relation. The values of the direct energy gap have been found to be greater than the corresponding values of the indirect energy gap. Significant changes in the index of refraction, and 13 and gamma dielectric relaxations were observed in the case of N4+ irradiated FEP and PFA samples. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams
VL  - 80
IS  - 12
SP  - 1378
EP  - 1385
DO  - 10.1016/j.radphyschem.2011.08.012
ER  - 
@article{
author = "Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Bibić, Nataša M. and Jovanović, Zoran M. and Maletić, Slobodan and Stchakovsky, M. and Krklješ, Aleksandra N.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4516",
abstract = "Fluorinated ethylene propylene (FEP) and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) (PFA) copolymer films were irradiated in vacuum with 60 key C4+ and N4+ ions to fluences ranging from 1.0 x 10(12) to 5.0 x 10(15) cm(-2). Changes in optical and dielectric properties were analyzed by spectroscopic ellipsometry and ultraviolet-visible (UV-vis), Raman and dielectric relaxation spectroscopies. Direct and indirect energy band gap values were determined from the absorption edge in the 200-800 nm region using Taucs relation. The values of the direct energy gap have been found to be greater than the corresponding values of the indirect energy gap. Significant changes in the index of refraction, and 13 and gamma dielectric relaxations were observed in the case of N4+ irradiated FEP and PFA samples. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams",
volume = "80",
number = "12",
pages = "1378-1385",
doi = "10.1016/j.radphyschem.2011.08.012"
}
Šiljegović, M., Kačarević-Popović, Z. M., Bibić, N. M., Jovanović, Z. M., Maletić, S., Stchakovsky, M.,& Krklješ, A. N. (2011). Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams.
Radiation Physics and Chemistry, 80(12), 1378-1385.
https://doi.org/10.1016/j.radphyschem.2011.08.012
Šiljegović M, Kačarević-Popović ZM, Bibić NM, Jovanović ZM, Maletić S, Stchakovsky M, Krklješ AN. Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams. Radiation Physics and Chemistry. 2011;80(12):1378-1385
Šiljegović Milorad, Kačarević-Popović Zorica M., Bibić Nataša M., Jovanović Zoran M., Maletić Slobodan, Stchakovsky M., Krklješ Aleksandra N., "Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams" Radiation Physics and Chemistry, 80, no. 12 (2011):1378-1385,
https://doi.org/10.1016/j.radphyschem.2011.08.012 .
21
22
21

Silver/Poly(N-Vinyl-2-Pyrrolidone) Nanocomposites Obtained By Electrochemical Synthesis

Jovanović, Željka; Radosavljević, Aleksandra; Kačarević-Popović, Zorica M.; Miskovic-Stankovic, Vesna

(2011)

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Kačarević-Popović, Zorica M.
AU  - Miskovic-Stankovic, Vesna
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4766
AB  - Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ at a constant voltage, by in situ synthesis of silver nanoparticles inside a poly(N-vinyl-2-pyrrolidone) matrix, previously crosslinked by gamma-irradiation. Optimal values of synthesis parameters were investigated: the composition of the solution for swelling of PVP hydrogel, implementation time and applied voltage. Ag/PVP nanocomposites were characterized by UV-Visible spectroscopy, and IR spectroscopy. UV-Visible spectroscopy results showed that the reduction of silver ions was more efficient when the more conductive solution for swelling of PVP hydrogel was used, i.e., the solution containing 3.9 mM AgNO3 with 0.1 M KNO3. It was also shown that the concentration of the reduced silver increases with the increase in implementation time and applied voltage, up to values of 4 min and 200 V, respectively. The Ag nanoparticle size was estimated to be 25 nm, by comparison of the experimental results of UV-Vis spectroscopy with the theoretical predictions obtained by the calculations in MiePlot v.3.4 software, having the algorithm based on Mie scattering from a sphere. The results of FTIR spectroscopy have shown that Ag nanoparticles were mainly bonded to PVP by coordination bondages between Ag nanoparticles and N from the pyrrolidone ring of PVP.
T2  - Hemijska industrija
T1  - Silver/Poly(N-Vinyl-2-Pyrrolidone) Nanocomposites Obtained By Electrochemical Synthesis
VL  - 65
IS  - 6
SP  - 687
EP  - 696
DO  - 10.2298/HEMIND110915064J
ER  - 
@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Kačarević-Popović, Zorica M. and Miskovic-Stankovic, Vesna",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4766",
abstract = "Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ at a constant voltage, by in situ synthesis of silver nanoparticles inside a poly(N-vinyl-2-pyrrolidone) matrix, previously crosslinked by gamma-irradiation. Optimal values of synthesis parameters were investigated: the composition of the solution for swelling of PVP hydrogel, implementation time and applied voltage. Ag/PVP nanocomposites were characterized by UV-Visible spectroscopy, and IR spectroscopy. UV-Visible spectroscopy results showed that the reduction of silver ions was more efficient when the more conductive solution for swelling of PVP hydrogel was used, i.e., the solution containing 3.9 mM AgNO3 with 0.1 M KNO3. It was also shown that the concentration of the reduced silver increases with the increase in implementation time and applied voltage, up to values of 4 min and 200 V, respectively. The Ag nanoparticle size was estimated to be 25 nm, by comparison of the experimental results of UV-Vis spectroscopy with the theoretical predictions obtained by the calculations in MiePlot v.3.4 software, having the algorithm based on Mie scattering from a sphere. The results of FTIR spectroscopy have shown that Ag nanoparticles were mainly bonded to PVP by coordination bondages between Ag nanoparticles and N from the pyrrolidone ring of PVP.",
journal = "Hemijska industrija",
title = "Silver/Poly(N-Vinyl-2-Pyrrolidone) Nanocomposites Obtained By Electrochemical Synthesis",
volume = "65",
number = "6",
pages = "687-696",
doi = "10.2298/HEMIND110915064J"
}
Jovanović, Ž., Radosavljević, A., Kačarević-Popović, Z. M.,& Miskovic-Stankovic, V. (2011). Silver/Poly(N-Vinyl-2-Pyrrolidone) Nanocomposites Obtained By Electrochemical Synthesis.
Hemijska industrija, 65(6), 687-696.
https://doi.org/10.2298/HEMIND110915064J
Jovanović Ž, Radosavljević A, Kačarević-Popović ZM, Miskovic-Stankovic V. Silver/Poly(N-Vinyl-2-Pyrrolidone) Nanocomposites Obtained By Electrochemical Synthesis. Hemijska industrija. 2011;65(6):687-696
Jovanović Željka, Radosavljević Aleksandra, Kačarević-Popović Zorica M., Miskovic-Stankovic Vesna, "Silver/Poly(N-Vinyl-2-Pyrrolidone) Nanocomposites Obtained By Electrochemical Synthesis" Hemijska industrija, 65, no. 6 (2011):687-696,
https://doi.org/10.2298/HEMIND110915064J .
2
2
2

Functionalization of carbon nanotubes with silver clusters

Cvetićanin, Jelena M.; Krklješ, Aleksandra N.; Kačarević-Popović, Zorica M.; Mitrić, Miodrag; Rakočević, Zlatko Lj.; Trpkov, Đorđe; Nešković, Olivera M.

(2010)

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  - http://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",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4034",
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.
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. Applied Surface Science. 2010;256(23):7048-7055
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" Applied Surface Science, 256, no. 23 (2010):7048-7055,
https://doi.org/10.1016/j.apsusc.2010.05.023 .
26
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30

Electrochemical synthesis of nanosized monetite powder and its electrophoretic deposition on titanium

Djosic, M. S.; Miskovic-Stankovic, V. B.; Kačarević-Popović, Zorica M.; Jokić, Bojan M.; Bibić, Nataša M.; Mitrić, Miodrag; Milonjić, Slobodan K.; Jančić-Heinemann, Radmila; Stojanovic, J.

(2009)

TY  - JOUR
AU  - Djosic, M. S.
AU  - Miskovic-Stankovic, V. B.
AU  - Kačarević-Popović, Zorica M.
AU  - Jokić, Bojan M.
AU  - Bibić, Nataša M.
AU  - Mitrić, Miodrag
AU  - Milonjić, Slobodan K.
AU  - Jančić-Heinemann, Radmila
AU  - Stojanovic, J.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3713
AB  - Electrochemical synthesis of nanosized monetite powder was performed galvanostatically from homogeneous Solution of Na(2)H(2)EDTA center dot 2H(2)O, NaH2PO4 and CaCl2 at a concentration relationship Ca/EDTA/PO43- of 0.25/0.25/0.15 M at current density of 137 mA cm(-2) and pH value of 5.0. The synthesized monetite powder was characterized by X-ray diffraction, infrared spectroscopy, size distribution measurements, thermogravimetric and differential thermal analysis and scanning electron microscopy. Monetite powder was electrophoretically deposited on titanium from ethanol Suspension, using constant voltage method. The deposition was performed at constant voltage between 10 and 50 V and for a constant deposition time between 1 and 30 min. The influence of the applied voltage and deposition time on the mass and morphology of monetite deposits was investigated. It was shown that monetite deposits of the highest thickness and the lowest porosity can be formed at lower applied voltage (30 V) and for longer deposition time (20 min) and then converted to hydroxyapatite. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. A: Physicochemical and Engineering Aspects
T1  - Electrochemical synthesis of nanosized monetite powder and its electrophoretic deposition on titanium
VL  - 341
IS  - 1-3
SP  - 110
EP  - 117
DO  - 10.1016/j.colsurfa.2009.03.046
ER  - 
@article{
author = "Djosic, M. S. and Miskovic-Stankovic, V. B. and Kačarević-Popović, Zorica M. and Jokić, Bojan M. and Bibić, Nataša M. and Mitrić, Miodrag and Milonjić, Slobodan K. and Jančić-Heinemann, Radmila and Stojanovic, J.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3713",
abstract = "Electrochemical synthesis of nanosized monetite powder was performed galvanostatically from homogeneous Solution of Na(2)H(2)EDTA center dot 2H(2)O, NaH2PO4 and CaCl2 at a concentration relationship Ca/EDTA/PO43- of 0.25/0.25/0.15 M at current density of 137 mA cm(-2) and pH value of 5.0. The synthesized monetite powder was characterized by X-ray diffraction, infrared spectroscopy, size distribution measurements, thermogravimetric and differential thermal analysis and scanning electron microscopy. Monetite powder was electrophoretically deposited on titanium from ethanol Suspension, using constant voltage method. The deposition was performed at constant voltage between 10 and 50 V and for a constant deposition time between 1 and 30 min. The influence of the applied voltage and deposition time on the mass and morphology of monetite deposits was investigated. It was shown that monetite deposits of the highest thickness and the lowest porosity can be formed at lower applied voltage (30 V) and for longer deposition time (20 min) and then converted to hydroxyapatite. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects",
title = "Electrochemical synthesis of nanosized monetite powder and its electrophoretic deposition on titanium",
volume = "341",
number = "1-3",
pages = "110-117",
doi = "10.1016/j.colsurfa.2009.03.046"
}
Djosic, M. S., Miskovic-Stankovic, V. B., Kačarević-Popović, Z. M., Jokić, B. M., Bibić, N. M., Mitrić, M., Milonjić, S. K., Jančić-Heinemann, R.,& Stojanovic, J. (2009). Electrochemical synthesis of nanosized monetite powder and its electrophoretic deposition on titanium.
Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 341(1-3), 110-117.
https://doi.org/10.1016/j.colsurfa.2009.03.046
Djosic MS, Miskovic-Stankovic VB, Kačarević-Popović ZM, Jokić BM, Bibić NM, Mitrić M, Milonjić SK, Jančić-Heinemann R, Stojanovic J. Electrochemical synthesis of nanosized monetite powder and its electrophoretic deposition on titanium. Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2009;341(1-3):110-117
Djosic M. S., Miskovic-Stankovic V. B., Kačarević-Popović Zorica M., Jokić Bojan M., Bibić Nataša M., Mitrić Miodrag, Milonjić Slobodan K., Jančić-Heinemann Radmila, Stojanovic J., "Electrochemical synthesis of nanosized monetite powder and its electrophoretic deposition on titanium" Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 341, no. 1-3 (2009):110-117,
https://doi.org/10.1016/j.colsurfa.2009.03.046 .
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