GREEN SYNTHESIS OF SILVER NANOPARTICLES USING MORUS ALBA EXTRACT AND THEIR ANTIBACTERIAL PROPERTIES

Abstract

Background

Metal nanoparticles can be used to control a range of resistant and pathogenic microorganisms. Nanoparticles are used in many different fields, including medicine, diagnostics, drug and gene delivery, electronics, cosmetics, coatings, biosensors, imaging, and environmental remediation. Of the many metal nanoparticles, silver nanoparticles have been the focus of much investigation because of their distinct optical properties, conductivity, chemical stability, and catalytic activity. This method allowed the synthesis of silver nanoparticles in an environmentally friendly way, which was confirmed by (UV-Vis) spectrophotometry and FTIR. Morus alba leaf extract was utilized as the reducing, stabilizing, and capping agent in the aqueous phase.

Aim: This work presents an investigation on the biosynthesis of silver nanoparticles (AgNPs) using an aqueous extract of Morus alba (mulberry) leaves and an evaluation of its antibacterial qualities.

Method: The antibacterial properties of synthesized AgNP are evaluated using agar disk and agar well diffusion. The production of silver nanoparticles is verified by the development of a characteristic color (yellow brown), which stands for the reduction of Ag+ ions.

Results: The produced AgNPs shown antibacterial efficacy against Pseudomonas aeruginosa and Escherichia coli. The biosynthesized silver nanoparticles had better antibacterial capabilities against the studied microbes, as evidenced by the formation of zones of inhibition.

Conclusion: In order to fight human pathogens (Escherichia coli and Pseudomonas aeruginosa), Morus alba and AgNPs may be employed as safe, efficient, and environmentally friendly antibacterial agents.