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Nanotube, heal thyself

Pound for pound, carbon nanotubes are stronger and lighter than steel, but unlike other materials, the miniscule carbon cylinders remain remarkably robust even when chunks of their bodies are blasted away with heat or radiation. A Rice University study in the Feb. 16 issue of Physical Review Letters offers the first explanation: tiny blemishes crawl over the skin of the damaged nanotubes, sewing up larger holes as they go.

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Keywords: nanotube, heal, thyself

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