Antibacterial properties of silver nanoparticles

The environmental behaviors of nano particles and technical applications have been in the focus of extensive research in recent years due to their antibacterial, light, electrical properties. Previous study shows that Ag, TiO(2), ZnO, Cu, … Nano particles have antibacterial properties, which are dependent on the size and density of them. In this work we have fabricated Ag nano particles in TiO(2) matrix by plasma enhanced chemical vapor deposition (PECVD) and investigated the bacterial activity of Ag and TiO(2) nano particles against Escherichia coli (E.coli) under UV-VI radiation and dark condition, at room temperature, due to their applications as a covering surface on clinical devices. Our results show that Ag nano particles have strong antibacterial property.

Keywords:

Antibacterial , Deposition , Escherichia coli , Nano particles