Self-Cleaning Clothes

Last week I posted an entry on how new windows can clean themselves. Using the same titanium dioxide coating and principles, independent researchers have developed a cotton fabric that will keep itself clean after being exposed to sunlight.

The titanium dioxide nanoparticles are catalysts that help to break down carbon-based molecules, and require only sunlight to trigger the reaction. The inventors believe that these fabrics could be made into self-cleaning clothes that tackle dirt, environmental pollutants and harmful microorganisms. The titanium dioxide particles covering the cloth are just 20 nanometres across, about 2,500 times smaller than the width of a human hair. The researchers' key breakthrough was to ensure that these particles had exactly the right arrangement of atoms.

New Scientist June 14, 2004

Post your comment
Click Here and be the first to comment on this article