I read a nice nanotech story in today's FT about a company close to me that is in talks with the US Office of Naval Research over its water purification systems. Nanomagnetics, the Bristol-based nanotech firm has several patentsa for products that work in data storage, medical imaging, diagnostics as well as water purification.
Engadget wrote about Nanomagnetics last summer, and there's the odd mention of the firm in places like Cnet, and New Scientist, but only sporadic mentions. It would be good to read more about this firm.
Richard Jones, who is on Nanomagnetics' science advisory board, explains concisely on his blog, Soft Machines, how Nanomagnetics can apply its products to turn dirty water into drinkable water, and the possible use for this application in the military.