Effective Green Synthesis, Characterization and Antibacterial Efficacy of Silver Nanoparticles from Seaweed Treated Sprouts of Moth Bean ( Vigna aconitifolia Jacq.)

Background The plant-mediated green synthesized silver nanoparticles (SNPs) are nontoxic, non-polluting, cheaper and more compatible for nanomedical applications. Introduction Stable silver nanoparticles were, therefore, synthesized by green approach from Ascophyllum nodosum –treated Vigna aconitifolia sprouts. The characterizations of SNPs were done by UV-visible spectroscopy, FTIR and TEM. Methodology The silver nanoparticles synthesized from Vigna aconitifolia sprouts confirmed significant antibacterial activity towards Gram (+ve) and Gram (−ve) bacteria. The green synthesized SNPs cleared both the bacteria in a concentration-dependent manner. The Ascophyllum nodosum treatment to the Vigna aconitifolia sprouts potentiated the inhibition potential of the SNPs against both types of bacteria. Result and Conclusion The green synthesized nanoparticles were more effective in clearing Escherichia coli as compared with clearing the Bacillus subtilis since a higher concentration of the SNPs is required to clear the latter than the former. Meanwhile, the plant extract alone shows no inhibition. Lay Summary This study assessed the green synthesis and antibacterial activity of green synthesized silver nanoparticles from seaweed-treated Vigna aconitifolia . Results showed that green synthesized SNPs inhibited both the bacteria in a concentration dependent method.