A semi-living stingray may one day fix your heart

A 10-millimetre-long robot modelled on a stingray and constructed from live heart cells and gold might point to radical new therapies for cardiac patients, research reveals.

A team led by Ali Khademhosseni, a bioengineer at the University of California, Los Angeles, in the US, has created a semi-living “soft” robot that mimics in miniature the body shape and movement mechanics of a marine ray or skate.

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