Radical Scavenging Activity of Calcium Oxide Nanoparticles Biosynthesized from Cordia Myxa Leaves Aqueous Extract

The synthesis of nanoparticles, particularly metal and metal oxides nanoparticles, has become a popular field of research today. Biological syntheses are the most environmentally friendly and economic method of producing nanoparticles among all possible techniques. The majority of research has focused on plant components, especially their leaves, which are the safest and least expensive. Throughout this study, we also used a species of plant that grows abundantly in warm zones and is one of the evergreen plants. Cordia myxa leaves extract with ancient therapeutic properties were used as a reducing and stabilizing agent. It is known that calcium oxide nanoparticles (CaO NPS) possess antimicrobial properties, which have been studied less than other metal oxide nanoparticles. In this study, antioxidant properties of these nanoparticles were investigated to further investigate their biomedical properties. Based on green chemistry principles, the nanoparticles prepared in this research are safe and economical, leaving no harmful residues behind. In addition to UV-Vis and FT-IR spectroscopy, XRD and SEM were used to analysis the synthesized nanoparticles. A monophasic cubic structure was determined from XRD results of the nanoparticles with an average crystallinity of ۵۲.۲۲ nm. According to SEM images, the designed nanoparticles have an almost spherical shape with dimensions between ۳۲.۴۰ and ۸۳.۲۱ nm. Furthermore, the radical scavenging activity of CaO NPs was found to be significantly higher than that of the control sample at ۱۲.۵ μg ml-۱, which suggests that these nanoparticles can remove radicals at low concentrations.

Keywords:

Cordia myxa leaf , Antioxidant , Biosynthesis , Calcium oxide , Nanoparticles , Metal oxides