Green synthesis of silver nanoparticles using Barleria cristata

This is a simple, cost effective and reproducible green method to synthesize stable silver nanoparticles from silver nitrate through bioreduction method using Barleria cristata leaf extract. The phytosynthesis of silver nanoparticles was demonstrated first by visual observation and then by spectral methods [UV-Visible absorption spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR) and Dynamic Light Scattering technique (DLS)]. The Energy dispersive X-ray spectrum and TEM analysis revealed that the metal was indeed silver and the nanoparticles were spherical in shape with a particle size that ranged from 7.61nm to 16.46 nm respectively.