Synthesis and Antibacterial Effect Evaluation of AgNPs, TiO2NPs, and TiO2-Ag Nanocomposites Mourad Chkaif 1,2 Abstract Due to the increase of bacterial infections that keep threatening human health and safety, the need for efficient and strong antibacterial agents is still fatal. TiO2 nanoparticle’s photocatalytic properties have been widely used as antibacterial