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Superglue alternative made from soya is strong but biodegradable

Most adhesives are made from fossil fuels and take thousands of years to biodegrade, but a new alternative derived from soya plants bonds metal, wood and synthetic surfaces just as strongly ....

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Underwater glue made from silk can cling to surfaces like a barnacle

Kuki Waterstone/Alamy
A non-toxic underwater glue that is inspired by barnacles and made from silk is stronger than most synthetic adhesives.
Barnacles and mussels use a clever combination of factors to stick to rocks or to the side of boats. In particular, they layer protein filaments into a cement-like structure that is cross-linked for extra strength. These filaments – called byssus – form into polymers on the surface the shellfish wants to cling to. In nature, they are then strengthened by iron-containing complex molecules.
Fiorenzo Omenetto at Tufts University in Massachusetts and his colleagues sought to replicate that using silk from silk worms. ....

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