| http://www.w3.org/ns/prov#value | - In 1991, Japanese chemist Sumio Iijima created hollow cylinders of carbon measuring only a billionths of a meter in diameter, which he dubbed ???nanotubes.??? Carbon nanotubes created a big sensation in the materials sciences, but ever since researchers have sought to synthesize nanotubes from solids other than carbon, especially from semiconductors.
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