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Silkworms eat nanotubes, spin super-silk

Nanoengineer engineers at Tsinghua University fed silkworms carbon nanotubes or graphene, both of which are approximately 100 times stronger than steel. The silkworms then spun reinforced silk that, according to Chemical & Engineering News, "twice as tough (as regular silk) and can withstand at least 50% higher stress before breaking." The modified silks conduct electricity, unlike regular silk.
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