Abstract

SYNTHESIS OF SILVER NANOPARTICLES OF AQUEOUS EXTRACT OF PLANT LANTANA CAMARA AND EVALUATION OF ITS ANTIMICROBIAL ACTIVITY

Nilesh Meghani*, Heena Mankani and Saraswathy Nagendran

Abstract

It has been confirmed that aqueous silver ions can be reduced by aqueous extract of plant parts to produce stable silver nanoparticles. Antibacterial effect of nanoparticles of Lantana Camara can add on to the antibacterial effect of plant extract apart from being environmental friendly process. In this work, silver nanoparticles of aqueous extract of plant Lantana Camara was developed and its antibacterial effect by disk diffusion method was evaluated with B. Subtilis, S. Aureous, S. Typhi and E.coli. Silver nanoparticles were synthesized using AgNO3 solution and aqueous extract of Lantana Camara with different ratios i.e. 1:4, 3:2, 4:1, 2:3, 2:2 and for different time intervals i.e. 30 minutes, 1, 2, 3, 4, 5, 6, and 24 hours. Characterization of synthesized particles was done using UV visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy and antibacterial studies. The effect of washing of the diffusion disk with distilled water on antibacterial property was also evaluated. This study shows the possible use of biologically synthesized nanoparticles of aqueous extract of Lantana Camara as an antibacterial.

Keywords: UV visible spectroscopy, X-ray diffraction, nanoparticles.