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Some Carbon Nanotubes Could Pose Health Risk - Study

Certain kinds of carbon nanotubes -- hailed as a new "wonder" material -- behave like asbestos and could lead to a lung cancer that appears decades after exposure, an international team of researchers said on Tuesday. The findings suggest that the lightweight building block, 100 times stronger than steel and used in a number of everyday products, could be dangerous if inhaled in sufficient quantities, the team wrote in the journal Nature Nanotechnology.