Latex of <i>Calotropis gigantea</i> ‐Based Biogenic Magnesium Hydroxide Nanoparticles: Synthesis, Characterization, Antioxidant and Antibacterial Activity

The current investigation determines the fabrication and characterization of magnesium hydroxide nanoparticles (Mg(OH) 2 NPs) with the help of C. gigantea latex via biological method. The size, shape, morphology, functional groups and stability of biogenic Mg(OH) 2 NPs were analysed by microscopic and spectroscopical analyses. Mg–O vibration, C–O stretch, O–H and C–H bend were detected by FTIR analysis. Crystalline nature of biogenic Mg(OH) 2 NPs was confirmed by X‐ray diffraction (XRD). FESEM with EDX analysis revealed the morphology and elemental composition of biogenic Mg(OH) 2 NPs and proved that formation of nano petal‐shaped Mg(OH) 2 NPs. Moreover, the synthesized biogenic Mg(OH) 2 NPs were studied for antioxidant and antibacterial activities against wound‐causing bacteria by standard methods. As‐synthesized Mg(OH) 2 NPs showed significant antioxidant activity as compared with ascorbic acid and it had potential antibacterial activity. The study concluded that Mg(OH) 2 NPs with antioxidant and antibacterial properties can be synthesized using C. gigantea latex by green chemistry approach and may be used for formulation of new drugs and gel for wound healing and any other medical application.