June 21, 2024
Hamed Bahiraei

Hamed Bahiraei

Academic rank: Associate Professor
Address:
Education: Ph.D in فیزیک
Phone: 09376003569
Faculty: science

Research

Title Electrospun synthesis of silver/poly (vinyl alcohol) nano-fibers: Investigation of microstructure and antibacterial activity
Type Article
Keywords
Nanoparticles Ag/PVA Starch Nanocomposites Electro-spinning
Journal MATERIALS LETTERS
Researchers Hamed Bahiraei

Abstract

The antibacterial polymeric nanofibers based on polyvinyl alcohol (PVA) nano-fibers can be a promising candidate for biomedical applications. Herein, Ag nanoparticles embedded in polyvinyl alcohol (Ag/PVA) nano-fibers have been synthesized via electro-spinning technique using ex-situ generation. For the production of Ag nanoparticles (NPs), starch was used as a surface-active agent. The Rietveld refinement confirmed a face-centered cubic (FCC) structure without any impurity peaks for synthesized Ag NPs. The XRD pattern of Ag/PVA determined the complexity between Ag nanoparticles and electro-spinning PVA nano-fibers. The FE-SEM images revealed that the Ag NPs are dispersed in the PVA nano-fiber matrix. The antibacterial activity of Ag/PVA nano-fiber for inhibition of several groups of bacteria which are commonly found in hospital environments were investigated. Results indicated that the hybrid materials have a strong bactericidal effect against Pseudomonas aeruginosa, and Escherichia coli bacteria.