Synthesis, Characterization and Antimicrobial Activities of Bio-functionalized Ag and Au Metal Nanoparticles: (A Mini-Review)

Abstract

Nanotechnology play vital role in the science and technology form the fabrication or synthesis, design and analysis of nano material. Nanoparticles in the desired range of nanoscale in μm and nm which are important in various fields. Amongst all nanoparticles Silver and Gold Nanoparticles were synthesized by various methods like sol-gel, precipitation, mechano-chemical. Over the all-green synthesis is the newer and better environment friendly. The present review is based on only greener or biogenic way for the synthesis of nanoparticles. Biological material like different plant parts, tea, coffee, polyphenols present in plant materials biomolecules as proteins, enzymes. Bacteria, yeast, algae and viruses were used as reducing agents and capping agents to reduce the size to prepare the NPs by ecofriendly approach. The synthesized Nanoparticles were characterized by X-ray diffraction, SEM, TEM, FTIR and UV-Vis spectroscopic methods, and data obtained for further interpretation of results. A major aim to recognize the material for nano conversion and their antimicrobial activity. Many researchers used biological materials for sizing outs. In this regard to try to critically analyze the literature of Au and Ag metals and biological material searches. The scope of paper only silver and gold metal Nanoparticles and biomolecules from natural sources by investigators.