Effect of ultraviolet, electromagnetic radiation subtype C (UV-C) dose on biofilm formation by Pseudomonas aeruginosa

Pseudomonas aeruginosa is a commonly found nosocomial opportunistic pathogen that is characterized by its ability to form biofilm to protect itself from various external pressures. Biofilms are problematic in particular food industry sectors and in water distribution systems. In this study, we propose to explore the impact of UVC dose on biofilm production by P. aeruginosa strains. The biofilms densities were assessed by crystal violet assay. A relationship between UVC exposed dose and biofilm density was examined by establishment of new model linking between UVC dose and physiology bacteria response concerning biofilm production (UVC dose/biofilm production).