Physico-chemical and mechanical properties and antibacterial activity of silver/poly(vinyl alcohol)/graphene nanocomposites obtained by electrochemical method
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Bibić, Nataša M.
Perić-Grujić, Aleksandra A.
Park, Soo Jin
Rhee, Kyong Yop
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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.
Keywords:Polymer-matrix composites (PMCs) / Chemical properties / Surface analysis / Thermal analysis
Source:Composites: Part B: Engineering, 2016, 85, 102-112
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2013R1A1A2A10063466]