Fig. 5From: The application of titanium dioxide, zinc oxide, fullerene, and graphene nanoparticles in photodynamic therapy[Taken from reference (Senthilkumar et al. 2013)] a Chemical structure of TSPP. b Antimicrobial activity of ZnO, TSPP, and ZnO NP-encapsulated TSPP on E. coli bacterial cells under dark and visible light irradiationBack to article page