Nanotechnology, which explores materials within the 1-100 nm size range, has attracted significant interest due to the unique physiochemical properties of nanoparticles compared to their bulk counterparts. Among different synthesis approaches, green synthesis provides an environmentally benign, sustainable, and cost-effective alternatives to conventional physical and chemical methods. In this study, copper nanoparticles (CuNPs) were synthesized at room temperature using Azadirachta indica (neem) leaf extract as a natural reducing and stabilizing agent, with copper sulfate (CuSO4) serving as the precursor. The phytochemicals present in neem extract facilitated nanoparticle formation while eliminating the need for hazardous chemicals, thus aligning with the principles of green chemistry. The synthesized CuNPs were characterized using UV–Vis. Spectroscopy to confirm their optical properties, and their antimicrobial activity was evaluated. The findings highlight that neem-mediated synthesis offers a simple, eco-friendly, and efficient route for producing copper nanoparticles, with promising applications in biomedical, environmental, and industrial domains.
Deval et al. (Thu,) studied this question.