Nanoparticles scrutinized for health effects - San Francisco Chronicles, USA
Windows cleaned by raindrops, white sofas immune to red wine spills, tiles protected from limescale buildup - new products created from minute substances called nanoparticles are making such domestic dreams come true.
In the best-case scenario, these nanoparticles are harmless. But some scientists are concerned that these seemingly magical materials are hitting the market before their effects on human health and the environment have been sufficiently studied.