Preparation and antibacterial properties of nano biocomposite Poly(ε-caprolactone)-SiO 2 films with nanosilver

Olgun U., Tunç K., Hoş A.

Journal of Polymer Research, vol.26, no.2, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 2
  • Publication Date: 2019
  • Doi Number: 10.1007/s10965-018-1686-0
  • Journal Name: Journal of Polymer Research
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Nanosilver, Coating, Silica, Antibacterial, Poly(epsilon-caprolactone), Roll-mill
  • Istanbul Medipol University Affiliated: No


Two different silica samples with different particle size distributions (Silica-I: 40–63 μm, Silica-II: 90% below <55 μm) were utilized after the nano silver (5–30 nm) coating process by poly(dimethylsiloxane) in acetone. The prepared nano Ag-silica powders were melt-mixed into poly(ε-caprolactone) (PCL) and the mixture was roll-milled to produce the nano biocomposite films containing 10%, 20% and 40% nano Ag-silica. The antibacterial activity of the composite films against E. coli was evaluated. For the PCL films with 40% Ag-silica (0.08–0.12% nanosilver), 100% reduction of the bacterial contamination was observed. The nanosilver coated silica particles could find applications in antibacterial nano biocomposites.