Titanium dioxide nanoparticles (TiO2 NPs) have wide commercial applications, owing to their small size; however, the biosafety of TiO2 NPs should be evaluated further. In this study, we aimed investigate cytotoxicity in presence and absence ultraviolet A (UVA) irradiation human keratinocyte HaCaT cells. did not significantly affect cell viability UVA irradiation. Nonetheless, UVA-irradiated ind...
