Characterization of silver nanoparticles synthesized by using Adathoda vesica and Catharanthus roseus leaves.

Present study was undertaken on bio-synthesis of silver nanoparticles (AgNP) from 1mM aqueous AgNO₃ using leaf extracts of Catharanthus roseus (periwinkle) and Adhatoda vesica (Adulsa), selected on the basis of their medicinal properties. Biosynthesis of silver nanoparticles was confirmed by UVVis spectroscopy, Size and structure of AgNP were recorded by SEM, Secondary metabolites present in plant extract were determined by FTIR, which contained Tannic acid. Their medicinal properties were tested antimicrobial assays.