“…In comparison to conventional inactivation methods, PDT presents the advantage of not inducing the selection of resistant strains since its mode of action is based on the generation of reactive oxygen species (ROS) upon light irradiation. 6,7 Recently, a range of inorganic or metalloorganic semiconductor photocatalysts primary based on TiO 2 , 8,9 porphyrin derivatives and other metal-based complexes have been developed as suitable materials for disinfection. 6,10,11 Besides these metalcontaining active systems, recent studies have reported the development of pure organic and metal-free semiconductors based on water soluble conjugated polymers with visible light induced antibacterial properties.…”