Green Synthesis of Silver Nanoparticles Using Cosmos Sulphureus and Evaluation of Their Antimicrobial and Antioxidant Properties

The present study intended to synthesize, characterize silver nanoparticles (AgNPs) using Cosmossulphureus (Cs) aqueous leaf extract and their antimicrobial and antioxidant activities. The UV-visspectrophotometer exhibited an absorbance peak around 430-440 nm with color intensity from yellowto reddish brown after 4 days. SEM and EDX analysis showed AgNPs were pure and polydispersedand the size were ranging from 55 to 80 nm. XRD revealed that the nanoparticles were cubic and facecentered in shape and the biogenic CsAgNPs showed effective potent antimicrobial and antioxidantactivities. This study may serve as a tool for analyzing the controlled release of synthesized AgNPs,which have prospective role in the field of disease management particularly with respect to resistantpathogenic microorganisms.