Photos: High-tech tools for coping with disaster

This flexible light source made from semiconductors lasts up to 11 years, according to its maker, Articulated Technologies.

These thin, flexible sheets of light, which are made from LED chips set in plastic, can be wrapped around almost any object or stapled to the wall.

A prototype of "waterstick," a portable water filter for individual use that uses nanotechnology to turn a liter of groundwater into potable water within a minute and a half.

Prototype of a nanotechnology water filter for residential use.

Prototype of a high-capacity nanotechnology water filter for field or military use.