Synthesis of antibacterial silver nanoparticles by γ-irradiation

✍ Scribed by N. Sheikh; A. Akhavan; M.Z. Kassaee

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 324 KB
• Volume: 42
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2009.09.013

✦ Synopsis

Silver nanoparticles (Ag NPs) were synthesized by g-irradiation of silver ions in aqueous solutions containing polyvinyl pyrrolidone (PVP). Increasing of g-irradiation doses from 1 to 5 kGy enhanced the concentration of Ag NPs, indicated by UV-vis analysis. The XRD and the TEM measurements showed the production of face-centered cubic (fcc) Ag NPs with a mean size of about 16 nm. The produced nanoparticles were effectively stabilized by PVP through interactions, confirmed by the FT-IR. The relatively higher antibacterial activities of Ag NPs, synthesized through g-irradiation method, against E. coli indicate their potential for practical applications as biocidal materials.