Figure 2From: RETRACTED ARTICLE: Mechanisms of nanosized titanium dioxide-induced testicular oxidative stress and apoptosis in male mice Transmission electron microscope images of anatase TiO 2 NPs. (a) TiO2 NP powder; (b) TiO2 NPs suspended in HPMC solvent after incubation for 12Â h. TEM images showed that the sizes of the TiO2 NP powder or TiO2 NPs suspended in HPMC solvent for 12Â h ranged from 5 to 6Â nm, respectively.Back to article page