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.
| Original language | English |
|---|---|
| Pages (from-to) | 102-112 |
| Number of pages | 11 |
| Journal | Composites Part B: Engineering |
| Volume | 85 |
| DOIs | |
| Publication status | Published - 1 Feb 2016 |
| Externally published | Yes |
Keywords
- A. Polymer-matrix composites (PMCs)
- B. Chemical properties
- D. Surface analysis
- D. Thermal analysis
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