ナノメディシンとナノテクノロジーのジャーナル

概要

Enhanced Bioactivity of Ag/ZnO Nanorods-A Comparative Antibacterial Study (Sbds)

A. H. Shah, E. Manikandan, M. Basheer Ahmed and V. Ganesan

Background: In the present work, Ag/ZnO nanorods were synthesized in order to investigate bacterial sensitivity against Gram positive and Gram negative bacteria, comparatively by using well diffusion method.

Materials and methods: Nanoparticles were synthesized by the Sol-Gel method, using AgNO3, Zn(CH3CO2)2, NaOH and PVP as capping agent. All the materials were characterized by XRD, HRTEM, PL, FTIR, EDX, and μ-Raman.

Results: The Ag nanoparticles were found attached to crystalline ZnO nanorod. Ag/ZnO nanorods were found to be more effective towards Gram positive, and thus contribute to the greater mechanical damage to all functions of bacteria and enhanced bactericidal impact of Ag on ZnO nanoparticles.

Conclusions: Sol-Gel method was found to be an effective chemical method to synthesis Ag/ZnO metalsemiconductor nanorods. ZnO was found to be good match for Ag, for enhanced and synergistic antibacterial activities, for both Gram positive and Gram negative bacteria. So, this study provided both theoretical and experimental support for the practical applications of Ag/ZnO nanorods.