Because of their small size, nanoparticles may have unique physical and chemical properties. These properties may cause them to interact with living systems differently than larger materials with the same chemical composition (also known as bulk materials).

Those scientists found that sunscreen residue on the roof installers fingertips were being transferred to the colour bond sheets during installation & with titanium dioxide’s photo-sensitivity & the lovely sun’s help, the paint was literally peeling off those roofs.

This cytotoxic effect was also reported before; i.e. Natarajan et al. conducted an experiment that found a strong oxidative stress, morphological changes in mitochondria and substantial loss in the fusion of primary hepatocytes exposed to P25TiO₂NPs [52].

Molar mass: 412.23