The response of a startled sea cucumber has inspired a new material that could one day be used to build brain implants for patients with Parkinson's disease.The material can rapidly switch from being rigid to flexible and vice versa.
Writing in the journal Science, US researchers describe how species of the sea creatures "tense" when threatened.
The new material mimics this ability, and could be used to make advanced brain electrodes which are stiff when implanted, yet supple inside the body.
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