Photocatalysis-dependent inactivation of Lactobacillus phage PL-1 by a ceramics preparation

A ceramics preparation (Cleansand-205), which was coated with a mixture of the oxides of Si, Al, Ti, and Ag, was found to inactivate Lactobacillus phage PL-1 suspended in a buffer solution. The inactivation of phage was dependent on the amounts of Cleansand-205 added, and the reaction obeyed almost first-order reaction kinetics. The phage inactivation was considerably accelerated by the presence of light.