Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels
Аутори
Nešović, KatarinaJanković, Ana
Perić-Grujić, Aleksandra
Vukašinović-Sekulić, Maja
Radetić, Tamara
Živković, Ljiljana
Park, Soo Jin
Rhee, Kyong Yop
Mišković-Stanković, Vesna
Чланак у часопису (Рецензирана верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
A. Nano-structures / A. Polymer-matrix composites (PMCs) / B. Thermal propertiesИзвор:
Journal of Industrial and Engineering Chemistry, 2019, 77, 83-96Издавач:
- Korean Society of Industrial Engineering Chemistry
Финансирање / пројекти:
- Синтеза, развој технологија добијања и примена наноструктурних мултифункционалних материјала дефинисаних својстава (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
Напомена:
- Published version: http://technorep.tmf.bg.ac.rs/handle/123456789/4239
- This is the peer-reviewed version of the following article: Nešović K, Janković A, Perić-Grujić A, 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 Check far alcohol)/chitosan/graphene hydrogels. in Journal of Industrial and Engineering Chemistry. 2019;77:83-96. https://doi.org/10.1016/j.jiec.2019.04.022
Повезане информације:
- Верзија документа
http://technorep.tmf.bg.ac.rs/handle/123456789/4239 - Верзија документа
https://doi.org/10.1016/j.jiec.2019.04.022
DOI: 10.1016/j.jiec.2019.04.022
ISSN: 1226-086X
WoS: 000473376600007
Scopus: 2-s2.0-85065139901
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Nešović, Katarina AU - Janković, Ana AU - Perić-Grujić, Aleksandra 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 - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5044 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. PB - Korean Society of Industrial Engineering Chemistry T2 - Journal of Industrial and Engineering Chemistry T1 - Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels EP - 96 SP - 83 VL - 77 DO - 10.1016/j.jiec.2019.04.022 ER -
@article{ author = "Nešović, Katarina and Janković, Ana and Perić-Grujić, Aleksandra 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.", publisher = "Korean Society of Industrial Engineering Chemistry", journal = "Journal of Industrial and Engineering Chemistry", title = "Kinetic models of swelling and thermal stability of silver/poly(vinyl alcohol)/chitosan/graphene hydrogels", pages = "96-83", volume = "77", doi = "10.1016/j.jiec.2019.04.022" }
Nešović, K., Janković, A., Perić-Grujić, 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 Korean Society of Industrial Engineering Chemistry., 77, 83-96. https://doi.org/10.1016/j.jiec.2019.04.022
Nešović K, Janković A, Perić-Grujić A, 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, 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 . .