MedgadgetScientists Grow Electrodes Inside The Body

Swedish researchers have learned how to “grow” electrically conductive regions in tissue. The process involves injecting an enzyme-rich hydrogel into target tissues. The enzymes interact with molecules in the tissue and change the structure of the gel to make it conductive. The technique has potential application in areas as diverse as cardiac pacing to brain-computer interface development – all without the implanted electrodes that are used today and the physical limits they impose.