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No Assembly Required: DNA brings carbon nanotube circuits in line

By harnessing the binding patterns of DNA and proteins, researchers have devised an efficient way of making carbon-nanotube transistors. The new technique offers the possibility of assembling nanotubes into complex circuits that could eventually yield computer chips that are faster and more powerful than those available today.

Chip manufacturers are forever trying to squeeze more and more components onto a single chip. The smallest features on today's microchips are about 100 nanometers in width, whereas a carbon nanotube is only about 1 nanometer wide.

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