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and Aim: The silver nanoparticles have attained a special place in the area of nanotechnology because of their different biological applications. Fabrication of nanoparticles using green synthesis is done because of its wide applications in different fields such as biomedical, medicine, agriculture and food engineering. This study is to develop an easy and eco-friendly method for the synthesis of Ag-NPs using leaf extracts of the medicinal plant. Materials and Methods: The medicinal plants are rich sources of various medicinal properties. Olea dioica Roxb., leaf extract was used to investigate the effects of Ag-NPs having antibacterial activity and antioxidant capacity. The plant leaf extract contains flavonoids, alkaloids, saponins, and phenolic compounds which acts as reducing and stabilizing agents. The green synthesized silver nanoparticles were characterized by various techniques like UVvisible spectrophotometer, FTIR spectroscopy, and SEM analysis. Results: The synthesis of sliver nanoparticles from plant source, and analysis of nano particles by UV-Vis spectra, SEM and FTIR. The biological evaluations of Ag-NPs indicated an excellent inhibitory efficacy, antioxidant and antimicrobial activity for their future applications in medicine. Conclusion: The synthesized silver nanoparticles exhibited potent antioxidant and antimicrobial activities against Gram-positive and Gram-negative bacteria. The silver (Ag-NPs) nanoparticles synthesized by the pot green synthesis method proves its potential use in various medical applications.

Green synthesis of silver nanoparticles (Ag-NPs) from Olea dioica Roxb., leaf extracts and its biological activity