When human cells are exposed to titanium dioxide without the presence of UV light from the sun, the risk for bacterial infection more than doubles, scientists have discovered. When human cells are ...

Nanoparticles of titanium dioxide (TiO2) are commonly used in sunscreens as protection against ultraviolet radiation. Partly because the particles are so small, nanoscale TiO2 does not reflect visible ...

Measuring the band gap of materials is vital in the nanomaterial, semiconductor, and solar industries. This article illustrates how the band gap of a material can be established from its UV absorption ...