Synthesis, characterization and antibacterial effects of Silver nanoparticles

Abstract

Silver nanoparticles are particularly attractive in a number of areas, particularly health and food. Their optical and physicochemical properties give them enormous potential. In this article, we have studied the antibacterial effect of silver nanoparticles. These nanoparticles were synthesized chemically by reducing the AgNO3 precursor. Colloidal solutions of nanoparticles are obtained at different molar concentrations (0.0015, 0.0025, 0.0030 and 0.0035 moles). Morphological and optical characterization, by TEM, DLS and spectroscopy, revealed nanoparticles of spheroidal shapes, and sizes around 10 nm, and surface plasmon resonance wavelengths around 440 nm. The antibacterial activities of AgNPs on hospital strains