Visible-light-induced bactericidal properties of a novel thiophene-based linear conjugated polymer/TiO2 heterojunction

After 45 min irradiation with white light, 100% of S. aureus cells were dead at a 2 mg mL −1 concentration of 30% PTCD/TiO 2 . In addition to e − and h + , generated ROS could destroy the cell walls, resulting in the leakage of intracellular components and the death of the cells.