TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Perić-Grujić, Aleksandra A.
AU  - Vukašinović-Sekulić, Maja
AU  - Radetić, Tamara
AU  - Živković, Ljiljana
AU  - Park, Soo Jin
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8170
AB  - Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly(vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV–vis spectroscopy (UV–vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity. © 2019
T2  - Journal of Industrial and Engineering Chemistry
T1  - Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels
VL  - 77
SP  - 83
EP  - 96
DO  - 10.1016/j.jiec.2019.04.022
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Perić-Grujić, Aleksandra A. and Vukašinović-Sekulić, Maja and Radetić, Tamara and Živković, Ljiljana and Park, Soo Jin and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2019",
abstract = "Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly(vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV–vis spectroscopy (UV–vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity. © 2019",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels",
volume = "77",
pages = "83-96",
doi = "10.1016/j.jiec.2019.04.022"
}

Nešović, K., Janković, A., Perić-Grujić, A. A., Vukašinović-Sekulić, M., Radetić, T., Živković, L., Park, S. J., Rhee, K. Y.,& Mišković-Stanković, V.. (2019). Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry, 77, 83-96.
https://doi.org/10.1016/j.jiec.2019.04.022

Nešović K, Janković A, Perić-Grujić AA, Vukašinović-Sekulić M, Radetić T, Živković L, Park SJ, Rhee KY, Mišković-Stanković V. Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry. 2019;77:83-96.
doi:10.1016/j.jiec.2019.04.022 .

Nešović, Katarina, Janković, Ana, Perić-Grujić, Aleksandra A., Vukašinović-Sekulić, Maja, Radetić, Tamara, Živković, Ljiljana, Park, Soo Jin, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels" in Journal of Industrial and Engineering Chemistry, 77 (2019):83-96,
https://doi.org/10.1016/j.jiec.2019.04.022 . .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Perić-Grujić, Aleksandra A.
AU  - Vukašinović-Sekulić, Maja
AU  - Radetić, Tamara
AU  - Živković, Ljiljana
AU  - Park, Soo Jin
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8189
AB  - Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly(vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV–vis spectroscopy (UV–vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity. © 2019
T2  - Journal of Industrial and Engineering Chemistry
T1  - Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels
VL  - 77
SP  - 83
EP  - 96
DO  - 10.1016/j.jiec.2019.04.022
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Perić-Grujić, Aleksandra A. and Vukašinović-Sekulić, Maja and Radetić, Tamara and Živković, Ljiljana and Park, Soo Jin and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2019",
abstract = "Silver nanoparticles (AgNPs) were synthesized by in situ electrochemical reduction of Ag+ ions in poly(vinyl alcohol)/chitosan/graphene (PVA/CHI/Gr) hydrogel matrices with different concentrations of chitosan. The physicochemical properties of nanocomposite hydrogels were investigated by UV–vis spectroscopy (UV–vis), dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR), thermal characteristics were determined by differential scanning calorimetry (DSC) and mechanical properties were measured by tensile test. The swelling studies were carried out in phosphate buffer to simulate natural physiological environment and data were fitted by several kinetic models to determine the diffusion mechanism and diffusion coefficients of the swelling medium through the hydrogel matrices. It was shown that the presence of silver nanoparticles increased the uptake capability and equilibrium swelling degree of the composite hydrogels. The antibacterial activity was confirmed against Escherichia coli and Staphylococcus aureus, while the hydrogels without AgNPs exhibited antibacterial properties due to the presence of chitosan. With the addition of AgNPs, the samples showed stronger activity and fast reduction in the number of colonies, confirming the synergistic effect of chitosan and AgNPs on the antibacterial activity. © 2019",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels",
volume = "77",
pages = "83-96",
doi = "10.1016/j.jiec.2019.04.022"
}

Nešović, K., Janković, A., Perić-Grujić, A. A., Vukašinović-Sekulić, M., Radetić, T., Živković, L., Park, S. J., Rhee, K. Y.,& Mišković-Stanković, V.. (2019). Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry, 77, 83-96.
https://doi.org/10.1016/j.jiec.2019.04.022

Nešović K, Janković A, Perić-Grujić AA, Vukašinović-Sekulić M, Radetić T, Živković L, Park SJ, Rhee KY, Mišković-Stanković V. Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry. 2019;77:83-96.
doi:10.1016/j.jiec.2019.04.022 .

Nešović, Katarina, Janković, Ana, Perić-Grujić, Aleksandra A., Vukašinović-Sekulić, Maja, Radetić, Tamara, Živković, Ljiljana, Park, Soo Jin, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels" in Journal of Industrial and Engineering Chemistry, 77 (2019):83-96,
https://doi.org/10.1016/j.jiec.2019.04.022 . .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Radetić, Tamara
AU  - Vukašinović-Sekulić, Maja
AU  - Kojić, Vesna V.
AU  - Živković, Ljiljana
AU  - Perić-Grujić, Aleksandra A.
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8531
AB  - In this work, we provide a facile path for the preparation of wound dressing materials with improved characteristics based on biocompatible chitosan and poly(vinyl alcohol) hydrogels with embedded silver nanoparticles (AgNPs) as a potent antimicrobial agent. The hydrogels were prepared via freezing-thawing method, whereas AgNPs were synthesized via an in situ electrochemical route. The excellent physicochemical properties of the obtained nanocomposite hydrogels were validated using different spectroscopic and microscopic techniques. The formation of sub-10 nm AgNPs was confirmed by UV–visible spectroscopy, dynamic light scattering and transmission electron microscopy. Swelling and silver release profiles were validated using several diffusion models. The hydrogels were proven to be non-cytotoxic using MTT test and possessed powerful antibacterial activity against Staphylococcus aureus and Escherichia coli, as determined by test in suspension, which affirmed their feasibility for wound dressing applications. © 2019 Elsevier Ltd
T2  - European Polymer Journal
T1  - Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles – In vitro study
VL  - 121
SP  - 109257
DO  - 10.1016/j.eurpolymj.2019.109257
ER  - 

@article{
author = "Nešović, Katarina and Janković, Ana and Radetić, Tamara and Vukašinović-Sekulić, Maja and Kojić, Vesna V. and Živković, Ljiljana and Perić-Grujić, Aleksandra A. and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2019",
abstract = "In this work, we provide a facile path for the preparation of wound dressing materials with improved characteristics based on biocompatible chitosan and poly(vinyl alcohol) hydrogels with embedded silver nanoparticles (AgNPs) as a potent antimicrobial agent. The hydrogels were prepared via freezing-thawing method, whereas AgNPs were synthesized via an in situ electrochemical route. The excellent physicochemical properties of the obtained nanocomposite hydrogels were validated using different spectroscopic and microscopic techniques. The formation of sub-10 nm AgNPs was confirmed by UV–visible spectroscopy, dynamic light scattering and transmission electron microscopy. Swelling and silver release profiles were validated using several diffusion models. The hydrogels were proven to be non-cytotoxic using MTT test and possessed powerful antibacterial activity against Staphylococcus aureus and Escherichia coli, as determined by test in suspension, which affirmed their feasibility for wound dressing applications. © 2019 Elsevier Ltd",
journal = "European Polymer Journal",
title = "Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles – In vitro study",
volume = "121",
pages = "109257",
doi = "10.1016/j.eurpolymj.2019.109257"
}

Nešović, K., Janković, A., Radetić, T., Vukašinović-Sekulić, M., Kojić, V. V., Živković, L., Perić-Grujić, A. A., Rhee, K. Y.,& Mišković-Stanković, V.. (2019). Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles – In vitro study. in European Polymer Journal, 121, 109257.
https://doi.org/10.1016/j.eurpolymj.2019.109257

Nešović K, Janković A, Radetić T, Vukašinović-Sekulić M, Kojić VV, Živković L, Perić-Grujić AA, Rhee KY, Mišković-Stanković V. Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles – In vitro study. in European Polymer Journal. 2019;121:109257.
doi:10.1016/j.eurpolymj.2019.109257 .

Nešović, Katarina, Janković, Ana, Radetić, Tamara, Vukašinović-Sekulić, Maja, Kojić, Vesna V., Živković, Ljiljana, Perić-Grujić, Aleksandra A., Rhee, Kyong Yop, Mišković-Stanković, Vesna, "Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles – In vitro study" in European Polymer Journal, 121 (2019):109257,
https://doi.org/10.1016/j.eurpolymj.2019.109257 . .

TY  - JOUR
AU  - Surudžić, Rade D.
AU  - Janković, Ana
AU  - Bibić, Nataša M.
AU  - Vukašinović-Sekulić, Maja
AU  - Perić-Grujić, Aleksandra A.
AU  - Mišković-Stanković, Vesna B.
AU  - Park, Soo Jin
AU  - Rhee, Kyong Yop
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/865
AB  - Silver/poly(vinyl alcohol) and silver/poly(vinyl alcohol)/graphene nanocomposites in different forms (colloid dispersion, thin films and hydrogel discs) were synthesized by electrochemical reduction of Ag+ ions at constant current density. CV, Raman, XRD, FT-IR, and XPS analyses were used to characterize the interactions between silver nanoparticles, PVA molecules, and graphene. Ag/PVA/Gr nanocomposites had better mechanical and thermal properties and higher antibacterial activity against Staphylococcus aureus and Escherichia coli than Ag/PVA nanocomposites. Slow silver release, as well as a high remaining silver content (76%) after 28 days in simulated body fluid confirmed that both Ag/PVA and Ag/PVA/Gr nanocomposites are capable of maintaining sterility over time. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Composites: Part B: Engineering
T1  - Physico-chemical and mechanical properties and antibacterial activity of silver/poly(vinyl alcohol)/graphene nanocomposites obtained by electrochemical method
VL  - 85
SP  - 102
EP  - 112
DO  - 10.1016/j.compositesb.2015.09.029
ER  - 

@article{
author = "Surudžić, Rade D. and Janković, Ana and Bibić, Nataša M. and Vukašinović-Sekulić, Maja and Perić-Grujić, Aleksandra A. and Mišković-Stanković, Vesna B. and Park, Soo Jin and Rhee, Kyong Yop",
year = "2016",
abstract = "Silver/poly(vinyl alcohol) and silver/poly(vinyl alcohol)/graphene nanocomposites in different forms (colloid dispersion, thin films and hydrogel discs) were synthesized by electrochemical reduction of Ag+ ions at constant current density. CV, Raman, XRD, FT-IR, and XPS analyses were used to characterize the interactions between silver nanoparticles, PVA molecules, and graphene. Ag/PVA/Gr nanocomposites had better mechanical and thermal properties and higher antibacterial activity against Staphylococcus aureus and Escherichia coli than Ag/PVA nanocomposites. Slow silver release, as well as a high remaining silver content (76%) after 28 days in simulated body fluid confirmed that both Ag/PVA and Ag/PVA/Gr nanocomposites are capable of maintaining sterility over time. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Composites: Part B: Engineering",
title = "Physico-chemical and mechanical properties and antibacterial activity of silver/poly(vinyl alcohol)/graphene nanocomposites obtained by electrochemical method",
volume = "85",
pages = "102-112",
doi = "10.1016/j.compositesb.2015.09.029"
}

Surudžić, R. D., Janković, A., Bibić, N. M., Vukašinović-Sekulić, M., Perić-Grujić, A. A., Mišković-Stanković, V. B., Park, S. J.,& Rhee, K. Y.. (2016). Physico-chemical and mechanical properties and antibacterial activity of silver/poly(vinyl alcohol)/graphene nanocomposites obtained by electrochemical method. in Composites: Part B: Engineering
Elsevier., 85, 102-112.
https://doi.org/10.1016/j.compositesb.2015.09.029

Surudžić RD, Janković A, Bibić NM, Vukašinović-Sekulić M, Perić-Grujić AA, Mišković-Stanković VB, Park SJ, Rhee KY. Physico-chemical and mechanical properties and antibacterial activity of silver/poly(vinyl alcohol)/graphene nanocomposites obtained by electrochemical method. in Composites: Part B: Engineering. 2016;85:102-112.
doi:10.1016/j.compositesb.2015.09.029 .

Surudžić, Rade D., Janković, Ana, Bibić, Nataša M., Vukašinović-Sekulić, Maja, Perić-Grujić, Aleksandra A., Mišković-Stanković, Vesna B., Park, Soo Jin, Rhee, Kyong Yop, "Physico-chemical and mechanical properties and antibacterial activity of silver/poly(vinyl alcohol)/graphene nanocomposites obtained by electrochemical method" in Composites: Part B: Engineering, 85 (2016):102-112,
https://doi.org/10.1016/j.compositesb.2015.09.029 . .

TY  - JOUR
AU  - Mišković-Stanković, Vesna B.
AU  - Eraković, Sanja
AU  - Janković, Ana
AU  - Vukašinović-Sekulić, Maja
AU  - Mitrić, Miodrag
AU  - Jung, Young Chan
AU  - Park, Soo Jin
AU  - Rhee, Kyong Yop
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/885
AB  - Electrochemical synthesis was employed to prepare a novel hydroxyapatite/graphene (HAP/Gr) composite powder suitable for medical applications as a hard tissue implant (scaffold). The synthesis was performed in a homogeneous dispersion containing Na(2)H(2)EDTA center dot 2H(2)O, NaH2PO4 and CaCl2 with a Ca/EDTA/PO43- concentration ratio of 0.25/0.25/0.15M, along with 0.01 wt% added graphene nanosheets, at a current density of 137 mA cm(-2) and pH value of 9.0. The field emission scanning electron microscopy and transmission electron microscopy observations of the composite HAP/Gr powder indicated that nanosized hydroxyapatite particles were uniformly placed in the graphene overlay. Raman spectroscopy, Fourier transform infrared spectroscopy and X-ray diffraction confirmed graphene incorporation in the HAP/Gr powder. The electrochemically prepared HAP/Gr composite powder exhibited slight antibacterial effect against the growth of the bacterial strain Staphylococcus aureus.
T2  - Carbon Letters
T1  - Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder
VL  - 16
IS  - 4
SP  - 233
EP  - 240
DO  - 10.5714/CL.2015.16.4.233
ER  - 

@article{
author = "Mišković-Stanković, Vesna B. and Eraković, Sanja and Janković, Ana and Vukašinović-Sekulić, Maja and Mitrić, Miodrag and Jung, Young Chan and Park, Soo Jin and Rhee, Kyong Yop",
year = "2015",
abstract = "Electrochemical synthesis was employed to prepare a novel hydroxyapatite/graphene (HAP/Gr) composite powder suitable for medical applications as a hard tissue implant (scaffold). The synthesis was performed in a homogeneous dispersion containing Na(2)H(2)EDTA center dot 2H(2)O, NaH2PO4 and CaCl2 with a Ca/EDTA/PO43- concentration ratio of 0.25/0.25/0.15M, along with 0.01 wt% added graphene nanosheets, at a current density of 137 mA cm(-2) and pH value of 9.0. The field emission scanning electron microscopy and transmission electron microscopy observations of the composite HAP/Gr powder indicated that nanosized hydroxyapatite particles were uniformly placed in the graphene overlay. Raman spectroscopy, Fourier transform infrared spectroscopy and X-ray diffraction confirmed graphene incorporation in the HAP/Gr powder. The electrochemically prepared HAP/Gr composite powder exhibited slight antibacterial effect against the growth of the bacterial strain Staphylococcus aureus.",
journal = "Carbon Letters",
title = "Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder",
volume = "16",
number = "4",
pages = "233-240",
doi = "10.5714/CL.2015.16.4.233"
}

Mišković-Stanković, V. B., Eraković, S., Janković, A., Vukašinović-Sekulić, M., Mitrić, M., Jung, Y. C., Park, S. J.,& Rhee, K. Y.. (2015). Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder. in Carbon Letters, 16(4), 233-240.
https://doi.org/10.5714/CL.2015.16.4.233

Mišković-Stanković VB, Eraković S, Janković A, Vukašinović-Sekulić M, Mitrić M, Jung YC, Park SJ, Rhee KY. Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder. in Carbon Letters. 2015;16(4):233-240.
doi:10.5714/CL.2015.16.4.233 .

Mišković-Stanković, Vesna B., Eraković, Sanja, Janković, Ana, Vukašinović-Sekulić, Maja, Mitrić, Miodrag, Jung, Young Chan, Park, Soo Jin, Rhee, Kyong Yop, "Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder" in Carbon Letters, 16, no. 4 (2015):233-240,
https://doi.org/10.5714/CL.2015.16.4.233 . .