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Silver nanoparticles display unique physical and biological properties which have attracted intensive research interest because of their important medical applications. In this study silver nanoparticles (AgNPs) were synthesized for biomedical applications by a completely green biosynthetic method using Malachra Capitata(L.) leaf n-hexane extract.The prepared Ag NPs were characterized using UV-Visible, scanning electron microscopy/ energy dispersive X-ray spectroscopy (SEM/EDX), selected Area Diffraction Pattern (SAED) and Transmission Electron Microscopy (TEM), X-ray powder diffraction (XRD) and FTIR techniques.The UV-visible spectroscopic analysis showed the absorbance peak at 425 nm, which indicates the synthesis of silver nanoparticles. The average particle diameter as determined by TEM was found to be 35 ± 5 nm.The XRD pattern showed the the face center cubic (fcc) silver nanoparticles and confirmed that these nanoparticles are crystalline in nature.EDX analysis also exhibits the presence of silver element. The transmission electron micrographs showed the formation of polydispersed nanoparticles. During this study, the antimicrobial activities of green synthesized AgNPs were evaluated against various microorganisms. This work proved the capability of using biomaterial towards the synthesis of silver nanoparticles by adopting the principles of green chemistry.

SYNTHESIS AND CHARCTERIZATION OF SILVER NANOPARTICLES FROM THE LEAF EXTRACT OFMALACHRA CAPITATA (L.)