An octopus-inspired wearable biosensor can stick to wet, dry or hairy skin.
Developed by a team from DGIST, the adhesive biosensor is made from an elastic polyurethane and polyester fabric that has been coated with graphene oxide and soaked in L-ascorbic acid. The strong, stretchable material was then covered in a graphene and PDMS film to create a conductive path to the skin and etched with tiny patterns that mimic octopus microsuckers. The device can adhere securely to wet and dry skin, monitoring pressure and motion as well as ECG signals and the radial artery pulse—proving its medical applications.
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