Comparative study on effects of antibacterial gold and silver nanoparticles on the survival of Staphylococcus aureus

Abstract

Nanomaterial science has emerged as a promissing field connecting different field togather.   In this work, Gold   and silver nanoparticles were prepared using a laser ablation technique. Nanoparticle solution was characterized using a UV-visible spectrophotometer, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Results revealed cytotoxic effects of Ag and Au NPs appear after long exposure time. These effects were enhanced by the irradiation of NPs after mixing with bacterial suspension. As a conclusion, Ag and Au NPs can be utilized as antibacterial agents under certain condition and with certain properties.