Abstract
In present study Entomopathogenic fungi Beauveria bassiana was used as biological agent of synthesizing silver nanoparticles that have tested for its antibacterial activity against different pathogenic bacterial strains .It showed maximum activity against Escherichia coli (6mm) followed by Bacillus subtillis (TCBS) (5mm),Salmonella typhimurium (XLD) (4mm) and Klebsiella pneumoniae (YC)(4mm) moderate activity. Characterization was done various techniques viz, UV-VIS spectroscopy, zeta potential and dynamic light scattering and relative values are obtained as follows 420 nm Surface absorbance peak ,-19.2 mV zeta potential value its assured the stability of nanoparticles and average size distribution calculated by DLS of 160 nm and SEM micrograph shows 25-35 nm sized irregular shapes nanoparticles.
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