Fig. 38From: The application of titanium dioxide, zinc oxide, fullerene, and graphene nanoparticles in photodynamic therapy[Taken from reference (Xu et al. 2015)]Viability of HeLa cells after treatment with NGO–PEG/MitoTPP in the presence/absence of FA and light (650 nm, 10 mW/cm2, 30 min)Back to article page