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September 14th, 2007
One possible logic gate using nanotechnology - similar to current technology in that it uses electric charge - comprises a single metal atom suspended between two carbon-based molecules. Moving the atom one way or the other either blocks or lets through an electric charge.
Another application of nanotechnology, the manipulation of matter on an extremely small scale, is the carbon nanotube, essentially a sheet of carbon atoms rolled up into a tube. Researchers have been able for a few years to make logic gates out of nanotubes in different configurations.
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