Antioxidant and Catalytic Activity of Biosynthesized CuO Nanoparticles Using Extract of Galeopsidis herba

Abstract

The main objective of this study was synthesis of CuO nanoparticles using extract of Galeopsidis herba and were characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), SEM with EDS profile and transmission electron microscopy (TEM) analysis. SEM images confirmed that synthesized nanoparticles were spherical in nature. EDS profile confirmed the signal characteristic of cooper and oxygen. All the analyses revealed that synthesized CuO nanoparticles were 10 ± 5 nm in size. The antioxidant behavior of synthesized CuO nanoparticles was evaluated by scavenging free radicals of 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH). The DPPH scavenging activity was monitored using UV-Vis spectrophotometer. The synthesized CuO nanoparticles presented very good catalytic activity in the reduction of malachite green.

Enhancement of antioxidant activity of levan through the formation of nanoparticle systems with metal ions

“…Murali et al ( 2017) also conducted research on ZnO NPs, which had a maximum wavelength of 320 nm. Dobrucka (2018) has also reported that biosynthesized CuO NPs using the extract of Galeopsidis herba had a maximum wavelength of 296 nm. The levan modification of metal ions was confirmed using FTIR.…”

Antifungal and Cytotoxic Activities of Biosynthesized Silver, Zinc and Gold Nanoparticles by Flower Extract of <i>Rhanterium epapposum</i>

“…It was reported that plant extracts showed numerous advantages, such as availability, safety handling and viability of metabolites. Moreover, the reaction media for the synthesis of inorganic NPs is more interesting over other microorganisms as well as less hazard than other organisms [14].…”

Green Synthesis of Copper Oxide Nanoparticles from Magnolia Champaca Floral Extract and its Antioxidant & Toxicity Assay using Danio Rerio

“…The floral extract of Magnolia champaca has antiulcer, antidiabetic and anti-inflammatory properties and hence used for the treatment of ulcer, skin disease and wounds [11,12] . Rajshree Sinha et al performed scavenging activity of reduced power assay on a floral extract of Magnolia champaca is a higher percentage of inhibition 90.20% in comparison with ascorbic acid [13,14]. Bangladeshi medicinal plants which are generally utilized in various sicknesses are also assessed for antioxidant activity via DPPH and ABST analysis [15].…”