Genotoxicity Studies of Titanium Dioxide Nanoparticles (TiO₂NPs) in the Brain of Mice

Figure 1

Photomicrograph of brain sections of different groups, in which (a) represents negative control; (b) 24 h group showing extracellular brain edema (blue arrows) and intracellular brain edema (black arrow); (c) 7-day group showing an extracellular edema (arrows); (d), 14-day group showing vacuolation (arrows), respectively. Hematoxylin and eosin staining at 400x.

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