Abstract

GREEN SYNTHESIS OF ZINC OXIDE NANOPARTICLES- REVIEW PAPER

G. Parthasarathy*, Dr. M. Saroja, Dr. M. Venkatachalam, Dr. S. Shankar, V.K. Evanjelene

ABSTRACT

Plants have been used in the synthesis of metallic nanoparticles because they are more ecofriendly. These plant extracts also allow a controlled synthesis. Organic chemical solvents are toxic and require extreme conditions during nanoparticle synthesis. Plant extracts function as stabilizing, capping or hydrolytic agents. The ZnO nanoparticles are of significant interest as they provide many practical applications worldwide. The most important application of ZnO nanoparticles would be as antibacterial agents. The increases surface area and smaller size of these particles make them an ideal antibacterial agent. In this review, the overview of green synthesis of ZnO nanoparticles along with their antimicrobial activity. The mechanism of this activity was also reviewed. The green synthesis of ZnO nanoparticles from Azadirachta indica, Aloe vera, Murraya koenigii and Anisochilus carnosus were also highlighted.

Keywords: Green synthesis, nanoparticles, zinc oxide nanoparticles, antimicrobial activity.