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Large flakes of graphene oxide are the essential ingredient in a new recipe for robust carbon fibre created at Rice University in the US.

The fibre spun at Rice is unique for the strength of its knots. Most fibres are most likely to snap under tension at the knot, but Rice’s fibre demonstrates what the researchers refer to as “100 percent knot efficiency,” where the fibre is as likely to break anywhere along its length as at the knot.

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