Fig. 44From: The application of titanium dioxide, zinc oxide, fullerene, and graphene nanoparticles in photodynamic therapy[Reused with permission from reference (Sahu et al. 2013)] a In vitro cytotoxicity effect of MB, NGO, and NGO–MB in NIH/3T3 and HeLa cells after PDT, PTT, and PDT + PTT treatments. b PTT treatment effect on the tumor tissue before (left) and after 1-day irradiation (right)Back to article page