Synthèse Verte Des Nanoparticules A Effet Antibactérien

Abstract

Silver nanoparticles are of major interest, due among other things to their antibacterial effects. The green synthesis of these materials is considered to be a sustainable, environmentally friendly, toxin-free and biocompatible process, to which we have turned our attention in this work. The synthesis of silver nanoparticles was carried out using Alluim sativum extract with a solution of AgNO3 (1mM). The color shift from light green to green-brown, accompanied by absorption peaks (350-450 nm), indicated nanoparticle formation. The antibacterial activity of the synthesized nanoparticles was determined by the solid-state well diffusion method. Synthesized silver nanoparticles were shown to have a highly effective bactericidal effect against Staphylococcus aureus, with a maximum inhibition zone of 24mm at a concentration of 125μg/ml. Our results confirm that the plant extract studied is effective in the green synthesis of silver nanoparticles, offering the possibility of incorporating it as an antibacterial agent in the composition of biomedical and pharmaceutical products.