GREEN SYNTHESIS OF SILVER NANOPARTICLES FROM SWERTIA CHIRATA AND SOLANUM ROBUSTUM AND ITS BIOLOGICAL ACTIVITYVASTHI KENNEDY EVANJELENE AND ASHNATE SOUNDRUM MESIAAbstract Green synthesis of metal Nano particles is gaining significance in the nanotechnology branch. Extensive use of these nano particles has paved way for its commercial demand. Nano- biotechnology is a developing field of applied biological science. In this paper, the environmentally benign, Green synthesis of silver nanoparticles using methanol leaf extract of Swertia chirata and Solanum robustumis were studied. Investigation carried out for the synthesis of silver nanoparticles (SNPs) using the methanol leaf extract of Swertia chirata and Solanum robustum as a reducing agent from 1 mM silver nitrate (AgNO3).UV-Vis, SEM and FTIR are used for characterizing silver nano particles thus resulted. Silver nanoparticles were synthesized within 24 hours of incubation period and synthesized SNPs showed an absorption peak at around 430 nm in the UV-visible spectrum. The morphological study of Silver nanoparticles using SEM suggests that the nanoparticles are spherical in shape. New active particles could be identified by the synthesis of silver nanoparticles using methanol leaf extract of Swertia chirata and Solanum robustum and the eco-friendly SNPs can be used effectively against drug resistant bacterial strains. This is rapid and simple method by avoiding hazardous chemicals as reducing or stabilizing agents and cost-effective in synthesizing SNPs.
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