Size matters: welcome to the wild and wooly world of nanotechnology, the dwelling place of...

Call it the Nanoteehnology Revolution. The tiniest substances promise to transform industry and create a huge market. In chemicals, cosmetics, pharmaceuticals, technology and textiles, businesses are researching and manufacturing products based on nanotechnology, which uses bits of matter measured in billionths of a meter. The technology, utilizing materials a thousand times smaller than the width of a human hair, is showing up in everything from auto parts to sunscreens and clothing.

The market for nanotechnology products is expected to grow to around $200 billion in