TITLE:
Green Synthesis, Characterization and Antibacterial Activity of ZnO Nanoparticles
AUTHORS:
Hrishikesh Upadhyaya, Soumitra Shome, Rajdeep Sarma, Sujit Tewari, Mrinal Kanti Bhattacharya, Sanjib Kumar Panda
KEYWORDS:
Antibacterial Activity, Green Synthesis, ZnO Nanoparticles, Lawsonia inermis
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.9 No.6,
May
28,
2018
ABSTRACT: In the present study, mehendi extract (Lawsonia inermis) was used for
phytosynthesis of ZnO nanoparticles using 0.1 M Zn(NO3)2 as precursor under alkaline condition using NaOH with vigorous stirring for 2
h. ZnO NPs obtained were characterized by UV-Vis spectroscopy, XRD, SEM and TEM
that showed change in shape and size. Hexagonal particles were formed due to
plant extract relative to the rod shaped particles in absence of plant extract.
Further the antibacterial property of ZnO NP synthesized by green method was
more effective than those synthesized in absence of plant extract. The antibacterial activity
study of both the synthesized ZnO nanoparticles reveals that the nanoparticles synthesized
using mehendi extract are more effective than the particle synthesized without
mehendi extract. Thus, the use
of leaf extract as capping agent would improve the antibacterial property of
ZnO nanoparticle. However, bacteriocidal effect of these nanoparticles varies
with respect to the organism tested.