Fig. 8From: Visible light-regulated cationic polymer coupled with photodynamic inactivation as an effective tool for pathogen and biofilm eliminationIn vitro inhibition of E. coli biofilm formation by different concentrations of Ce6-TPP-PEI (a) and TPP-PEI (b) with LED light irradiation (5 min, 30 mW cm−2); 0.9% NaCl served as controls. In vitro biofilm removal capabilities on mature biofilm of Ce6-TPP-PEI (c) and TPP-PEI (d) with LED light irradiation (5 min, 30 mW cm−2)Back to article page