Antimicrobial activity of extracellularly synthesized silver nanoparticles from marine derived actinomycetes

Nanotechnology is an emerging and rapidly growing field with its application in science and technology for the purpose of manufacturing new materials at the nano scale level (Albrecht et al., 2006). Nanotechnology is a field that is burgeoning day by day making an impact in all spheres of human life (Vaidyanathan et al., 2009). The word Nano is used to indicate one billionth of a meter or 10-9. The term nanotechnology was coined by Norio Taniguchi, a researcher at the University of Tokyo, Japan (Taniguchi, 1974).