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June 5th, 2007

Nanotechnology-Untold promise, unknown risk

Imagine these technological marvels: drugs that seek out and destroy cancer cells, paint that changes color when viewed from different angles, molecular "ink" that encodes millions of pages of information in a square inch, and contact lenses that let you check your blood sugar by just looking in the mirror.

Those and a host of other innovations are already here, or soon will be, thanks to a scientific revolution called nanotechnology, which promises to change our world as profoundly as did electricity and the internal combustion engine.


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