Synthesis and characterization of silver nanoparticles by using polyphenols

Key Words: Nanotechnology, Ag nanoparticles, plant polyphenols, antibacterial. Nanotechnology is called the technology of the next century coming after microtechnology. Nanoscience, and nanotechnology, is going to initiate a technological impact that can probably not be compared with any other technical development up to the present time, since it will concern all aspects of human life, ranging from novel building materials to medicine. The most revolutionary consequences can be expected if the most valuable properties of nanoparticles, their electronic properties, are exploited. Meanwhile, we know the most important basic facts about nanoparticles and so can predict future applications based on their novel properties. In this study a novel and facile method to synthesize silver nanoparticles that have antibacterial feature was applied by using plant polyphenols which have reduction effect with involving ?OH groups and keeps the prepared particles stable since their macro molecular structures. There is no other reducing agents were used. This reaction was carried out at 70-80°C temperature. Effects of reactants? concentrations, polyphenol species and pH were investigated on particle size and morphology. The sizes of these silver nanoparticles were found to be in the range of 30-120 nm as analyzed using Scanning Electron Micrographs (SEM). Also the crystallography of the particles were investigated by X-Ray Diffraction patterns.