TY  - JOUR
AU  - Naghdi, Samira
AU  - Nešović, Katarina
AU  - Sanchez-Arriaga, Gonzalo
AU  - Song, Hyun Yong
AU  - Kim, Sung Wng
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4376
AB  - This study reports in-situ cesium-doped graphene (G/Cs) coating obtained by introducing Cs2CO3 into the atmospheric pressure chemical vapor deposition (APCVD) furnace during graphene deposition on copper. The successful Cs-doping of the graphene coating was confirmed via X-ray photoelectron spectroscopy (XPS). As compared to the spectra of pure graphene coating, the XPS spectra of the G/Cs coating revealed a shift of the C1s and Cs3d(5/2) peaks to higher and lower binding energies, respectively; thus, implying the n-type character of the doping and indicating a charge transfer between Cs and graphene. Raman results show that a pure graphene coating is composed of fewer layers, fewer defects, and larger domain size than the G/Cs coating. Ultraviolet photoelectron spectroscopy was utilized to study the work function of graphene and the G/Cs and revealed that doping graphene with Cs dopants reduced the work function of graphene by 1.2 eV. Electrochemical testing during 15-day immersion in 0.1 M NaCl indicated the destructive effect of the G/Cs coating on the Cu substrate. The results showed that the G/Cs coating exhibits a higher corrosion rate and lower corrosion resistance than even the bare metal itself.
PB  - Elsevier, Amsterdam
T2  - Journal of Materials Research and Technology-JMR&T
T1  - The effect of cesium dopant on APCVD graphene coating on copper
EP  - 9812
IS  - 5
SP  - 9798
VL  - 9
DO  - 10.1016/j.jmrt.2020.06.091
ER  - 

@article{
author = "Naghdi, Samira and Nešović, Katarina and Sanchez-Arriaga, Gonzalo and Song, Hyun Yong and Kim, Sung Wng and Rhee, Kyong Yop and Mišković-Stanković, Vesna",
year = "2020",
abstract = "This study reports in-situ cesium-doped graphene (G/Cs) coating obtained by introducing Cs2CO3 into the atmospheric pressure chemical vapor deposition (APCVD) furnace during graphene deposition on copper. The successful Cs-doping of the graphene coating was confirmed via X-ray photoelectron spectroscopy (XPS). As compared to the spectra of pure graphene coating, the XPS spectra of the G/Cs coating revealed a shift of the C1s and Cs3d(5/2) peaks to higher and lower binding energies, respectively; thus, implying the n-type character of the doping and indicating a charge transfer between Cs and graphene. Raman results show that a pure graphene coating is composed of fewer layers, fewer defects, and larger domain size than the G/Cs coating. Ultraviolet photoelectron spectroscopy was utilized to study the work function of graphene and the G/Cs and revealed that doping graphene with Cs dopants reduced the work function of graphene by 1.2 eV. Electrochemical testing during 15-day immersion in 0.1 M NaCl indicated the destructive effect of the G/Cs coating on the Cu substrate. The results showed that the G/Cs coating exhibits a higher corrosion rate and lower corrosion resistance than even the bare metal itself.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Materials Research and Technology-JMR&T",
title = "The effect of cesium dopant on APCVD graphene coating on copper",
pages = "9812-9798",
number = "5",
volume = "9",
doi = "10.1016/j.jmrt.2020.06.091"
}

Naghdi, S., Nešović, K., Sanchez-Arriaga, G., Song, H. Y., Kim, S. W., Rhee, K. Y.,& Mišković-Stanković, V.. (2020). The effect of cesium dopant on APCVD graphene coating on copper. in Journal of Materials Research and Technology-JMR&T
Elsevier, Amsterdam., 9(5), 9798-9812.
https://doi.org/10.1016/j.jmrt.2020.06.091

Naghdi S, Nešović K, Sanchez-Arriaga G, Song HY, Kim SW, Rhee KY, Mišković-Stanković V. The effect of cesium dopant on APCVD graphene coating on copper. in Journal of Materials Research and Technology-JMR&T. 2020;9(5):9798-9812.
doi:10.1016/j.jmrt.2020.06.091 .

Naghdi, Samira, Nešović, Katarina, Sanchez-Arriaga, Gonzalo, Song, Hyun Yong, Kim, Sung Wng, Rhee, Kyong Yop, Mišković-Stanković, Vesna, "The effect of cesium dopant on APCVD graphene coating on copper" in Journal of Materials Research and Technology-JMR&T, 9, no. 5 (2020):9798-9812,
https://doi.org/10.1016/j.jmrt.2020.06.091 . .

TY  - JOUR
AU  - Nešović, Katarina
AU  - Janković, Ana
AU  - Radetić, Tamara
AU  - Vukašinović-Sekulić, Maja
AU  - Kojić, Vesna
AU  - Živković, Ljiljana
AU  - Perić-Grujić, Aleksandra
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4113
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.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study
VL  - 121
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 and Živković, Ljiljana and Perić-Grujić, Aleksandra 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.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Chitosan-based hydrogel wound dressings with electrochemically incorporated silver nanoparticles - In vitro study",
volume = "121",
doi = "10.1016/j.eurpolymj.2019.109257"
}

Nešović, K., Janković, A., Radetić, T., Vukašinović-Sekulić, M., Kojić, V., Živković, L., Perić-Grujić, 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
Pergamon-Elsevier Science Ltd, Oxford., 121.
https://doi.org/10.1016/j.eurpolymj.2019.109257

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

Nešović, Katarina, Janković, Ana, Radetić, Tamara, Vukašinović-Sekulić, Maja, Kojić, Vesna, Živković, Ljiljana, Perić-Grujić, Aleksandra, 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),
https://doi.org/10.1016/j.eurpolymj.2019.109257 . .