Bio- inspired synthesis of magnesium oxide nanoparticles from Acalypha indica: Anti-bacterial, anti-oxidant and toxicity study

Abstract

Green synthesis approaches are unique eco-friendly techniques that use a less hazardous methodology to synthesize metal oxide NPs. The present investigation used the Acalypha indica plant leaf extract as a reducing agent to generate Magnesium oxide nanoparticles using a sustainable green synthetic method. The leaves of Acalypha indica was freshly taken and extracted with distilled water and added to the magnesium chloride that was used as a precursor. The synthesized nanoparticles were characterized by various methods. By using UV-Visible Spectrophotometer, the peak at 284 nm confirms the presence of MgO NPs was confirmed. The functional group was identified using the FT-IR. The grain size of the nanoparticles was observed as 10 nm using X-Ray Diffraction analysis. The morphology of the MgO NPs was determined using the SEM analysis and EDAX analysis and Zeta potential were analysed to determine the charge of the NPs. In antibacterial activity, the MgO NPs showed greater efficiency against the pathogen E. coli. The antioxidant activities stated that, the scavenging activity was increased by the increased NPs concentration. The toxicity analysis revealed the positive response in the Vigna radiata seedling growth.