Eucalyptus gunni Mediated Fabrication of Silver Nanoparticles and their Biomedical Applications

Nanobiotechnology in the development of nanoparticles is of considerable prominence to enlarge their biological solicitations. At present, a wide array of metal nanoparticles has been synthesized by using biogenic enzymatic methods. In the present study, Ag nanoparticles were green synthesized by using the aqueous leaf extract of Eucalyptus gunni. Further, the NPs were characterized by UV-Visible spectroscopy, FT-IR spectroscopy, X-ray diffraction (XRD), and Scanning Electron Microscopy (SEM). The antibacterial activity of the biosynthesized Ag nanoparticles was tested against Staphylococcus aureus, Bacillus cereus, Escherichia coli and Pseudomonas aeruginosa. Maximum antagonistic activity was observed against Escherichia coli. Thus the biogenic nanoparticles can be sight seen in biomedical applications devoid of adverse side effects.