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Tag archives: biomimetics

Waiter, there’s a bug in my cocktail!

By Hamish Johnston

Just in time for Christmas, researchers at the Massachusetts Institute of Technology (MIT) have unveiled the ultimate “cocktail accessory”. It’s an edible self-propelled boat that whizzes around on the surface of an alcoholic drink.

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How mussels stretch but don’t snap

PW-2013-08-02-blog-mussel

Mussel attached to a rock in the Boston area. (Courtesy: Zhao Qin)

By James Dacey

Ask any old sea dog and they will tell you the same thing – mussels are resilient little blighters that’ll cling onto yer ship no matter how fast ye sail. The secret behind the ability of mussels to remain tightly attached to surfaces has now been uncovered by a group of researchers at Massachusetts Institute of Technology (MIT) in the US.

Whereas barnacles fix themselves tightly to the surfaces of rocks, mussels deploy a different form of adhesion. They dangle from surfaces by a series of fine filaments known as byssus threads made from a protein closely related to collagen – a major constituent of skin and bones. The biological explanation for this behaviour is that it allows the mussels to glide through the water increasing the amount of nutrients they can absorb.

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