The Massachusetts Institute of Technology and the U.S. Army formally unveiled the Institute for Soldier Nanotechnologies, which is geared toward creating battlefield armor for the 21st century.

MIT on Thursday cut the ribbon on the nanotechnology institute, which was funded by a $50 million grant from the Army in 2002. Corporations including Dow Corning, DuPont, Raytheon and Carbon Nanotechnologies are participating in the center's development. In all, private companies have invested $40 million in the center.

The center's research can largely be characterized as chemistry in action. During a ceremony held at the university on Thursday, researchers showed off a technique for applying new types of coatings to fabrics to make them more resistant to water or capable of killing bacteria.

Other projects involve developing fabrics that will contract or expand like an accordion when exposed to electricity; these materials could potentially be used for in-field medical devices such as tourniquets.

Nanotechnology refers to the science of developing products out of components that measure 100 nanometers or less. (A nanometer is a billionth of a meter). Some of the more heralded breakthroughs in nanotechnology have revolved around using carbon nanotubes and other structures to create transistors or electronic storage devices.

Large segments of the growing industry, however, are focused on coming up with new products for the life-sciences sector or chemical conglomerates. Greensboro, N.C.-based Nano-Tex, for instance, has developed synthetic materials that it says make garments stain-proof. Eddie Bauer and other retailers are already selling pants that use the company's products.

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