New Paint Based On Titanium Nanoparticles Creates Self-Cleaning Surfaces
hypnosec writes: Scientists have created a paint that provides self-cleaning surfaces and can maintain them even after being wiped, scratched, or scuffed. The paint, composed of titanium dioxide (TiO2) nanoparticles, is delivered as a suspension in ethanol containing the chemical perfluorooctyltriethoxysilane (abstract). Once the coating is applied to a surface, the ethanol must evaporate for 180 seconds before it is ready for use. Depending on the surface, the coating can be sprayed, dipped, or painted.
It's already being studied. Asbestos is dangerous because it creates naturally occurring nanoparticles. It's not chemically toxic.
These types of manufactured nanoparticles, including carbon nanotubes, won't see widespread use until they're shown to be safe.