Cleaner water through nanotechnology

Tiny particles of pure silica coated with an active material could be
used to remove toxic chemicals, bacteria, viruses, and other hazardous
materials from water much more effectively and at lower cost than
conventional water purification methods, according to researchers
[http://mozhi.org/mozhi%20news/ns260.htm] writing in the current issue
of the International Journal of Nanotechnology.