ABSTRACT
This chapter focuses on an extracellular rapid biosynthesis of silver nanoparticles from Silver nitrate using aqueous leaf extract of Pimenta dioica. It also focuses on minimising the hazards of chemical synthesis and developing an environment friendly method for the synthesis of silver nanoparticles. The aqueous leaf extract of Pimenta dioica was used as a reducing medium for Silver ions of silver nitrate to metallic silver. The antibacterial activity of the silver nanoparticles was evaluated using four types of bacteria, Staphylococcus aureus, Escherichia coli, Klebsiella pneumonia and Pseudomonas aeroginosa. The antifungal activity was studied with the zone of inhibition produced by two pathogenic fungi Aspergillus niger and Candida albicans. The biosynthesised silver nanoparticles show effective antimicrobial activity. Silver nanoparticles were synthesised by green route using ‘Sarvasugandhi’ plant extract. The nanoparticles were characterised by Infrared and Ultraviolet spectroscopy.
