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Nanowires grow on viral templates

When materials scientist Angela Belcher set out to build electronic circuits using building blocks the size of viruses, she took the challenge quite literally. The Massachusetts Institute of Technology researcher has made semiconducting nanowires with the help of the microbes themselves.

Nanowires fashioned into billions of transistors on a microchip could someday drive tiny, ultra-fast computers. Because these building blocks are so minuscule, however, assembling them into functioning circuits is a big challenge.

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