Synthesis, Characterization and Catalytic Activity of Plant- Mediated MgO Nanoparticles Using Mucuna Pruriens L. Seed Extract and Their Biological Evaluation

Abstract

Development of green and efficient procedures for the synthesis of metallic nanoparticles<br />has emerged as a significant topic in the field of nanotechnology. In this respect, using natural<br />resources,especially plant extract has attracted lots of attention; plant extract is a promising<br />alternative to traditional and chemical techniques. The plant Mucuna pruriens L. contains high<br />concentration of L-dopa in the seeds; it has been used as a nerve tonic for nervous system<br />disorders including Parkinson's disease. In this work, a rapid and efficient synthesis of stable<br />magnesium oxide nanoparticles (MgO NPs) using aqueous extract of Mucuna pruriens seeds<br />were reported. The biologically synthesized MgO NPs were characterized by UV–Visible and<br />Fourier transform infrared (FTIR) spectroscopy as well as X-ray diffraction (XRD), scanning and<br />transmission electron microscopy (SEM and TEM). The potential of MgO nanoparticles in the<br />degeneration of methyl orange (MO) and methylene blue (MB) dyes were assessed in different<br />conditions. The results of these investigations showed that the synthesized MgO NPs have<br />a good catalytic activity in the removal of both dyes. Biological study of biosynthesized MgO<br />NPs showed moderate antibacterial property against four strains of bacteria and a very good<br />antioxidant activity.