Synthesis and characterization of capped silver nanoparticles through green and chemical reduction methods study of their applications

Abstract

Silver nanoparticles capped with N-(4-amino-3,5-diphenyl-3H-thiazol-2-ylidene) benzamide were synthesized using a simple chemical reduction method. The process involved treating aqueous silver ions with a hot ethanolic solution of N-(4-amino-3,5-diphenyl-3H-thiazol-2-ylidene) benzamide. The resulting silver nanoparticles were spherical, uniform in shape, and had an average size of 34 nm. Their characterization was performed using UV-visible spectroscopy, FTIR, XRD, SEM, and TEM techniques. The capped silver nanoparticles exhibited significant antibacterial activity against various human pathogenic bacteria at different concentrations (25,50,75, and 100 µg). Compared to the standard antibiotic ciprofloxacin, the synthesized nanoparticles demonstrated potent inhibitory effects.