May 2/9, 2001    

   Jolts yield nanotube transistors
Carbon nanotubes are a natural for nanoelectronics. They're tiny and they come in two kinds: semiconducting and metallic. The problem is, they come jumbled together. Separating them one by one is no way to launch a revolution. But the solution could be simple. Just add juice.
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Simulation hints at quantum computer power
Quantum computers could be mind-bogglingly fast, but the limited number of potential uses for them makes it hard to imagine anyone but the government paying to build them. Some MIT researchers are finding, however, that quantum computers could be a lot more useful than we think.

Metal makes DNA more conductive
If DNA can be coaxed to conduct electricity efficiently, the versatile molecules could spark a revolution in electronics. One approach calls for converting life's blueprint into a molecular cyborg.

Etching process points to nanotech production
Being able to make tiny components is only half the game in realizing the much-hyped future of nanotechnology. Mass-producing the stuff is the next challenge. Some relatively old-fashioned chemistry could be the key.

Plastic pins DNA molecules in place
DNA molecules have a tendency to coil up and move around, so using them as templates for precisely positioned molecular electronic devices seems like a stretch of the imagination. A few dabs of plastic and some water, however, could fill in the picture.

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