Green Synthesis of Metallic Nanoparticles Using Leaf Extract of Calotropis Species and their Applications: A Review

Biosynthesis of metallic nanomaterials has become an important field of research. The synthesis of metallic nanomaterials using plant extracts is a single-step, simple, rapid, and eco-friendly. The reducing agents involved include the various water-soluble secondary metabolites (Alkaloids, phenolic compounds, terpenoids, carbohydrates etc.) of the plant extracts. Diverse salts of metals of the transition metal series such as Gold (Au), Silver (Ag), Iron (Fe), Zinc (Zn) and Copper (Cu) etc, have been used in the synthesis. This review focused on the use of extracts of Calotropis species (spp) in the synthesis of metallic nanoparticles. The methods of synthesis and various applications of the synthesized nanoparticles were also discussed.