Green synthesis of silver nanoparticles using polysaccharide-based guar gum

Abstract

Silver nanoparticles have made a new horizon in engineering and technology due to their unique antimicrobial property. In the field of chemical engineering, silver nanoparticlesare a valuable noble metal with unique antibacterial activity and eco-friendly properties and are well suited to industrial and heterogeneous catalysis due to their inexpensive cost. The present investigation deals with the synthesized silver (Ag)-nanoparticles by utilizing biopolymer. The polysaccharide-based aqueous solution known as guar gum and PVA composite polymer mixture were used to reduce, stabilize, and capping. Moreover, transmission electron microscopes (TEM) were utilized to determine nanoparticles' size and homogeneity. The absorbance peak was measured at 413 nm using a UV–Visible spectrophotometer validating the synthesis of nanoparticles. Both gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli andPseudomonas aeruginosa) pathogens were resistant to the silver nanoparticles.