News From the Field
Research Brightens Prospects for Using the World's Smallest Candles in Medical Applications
June 7, 2007
In a way, nanotubes are nature's smallest candles. These tiny tubes are constructed from carbon atoms and they are so small that it takes about 100,000 laid side-by-side to span the width of a single human hair. In the last five years, scientists have discovered that some individual nanotubes are fluorescent. That is, they glow when they are bathed in light. Some glow brightly, others glow dimly. Some glow in spots, others glow all over.
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