This electric 'slime' might help injuries heal faster

This electric 'slime' might help injuries heal faster

When you break a bone or scrape an elbow, your body calls in healing cells. That S.O.S. takes the form of an electrical signal. A new gel that oozes like slime might someday help us heal faster by boosting that call. The gel is piezoelectric (PEE-zoh-ee-LEK-trik). That means it generates electricity when squeezed or stretched, says Erica Pensini. An engineer, she works at the University of Guelph in Ontario, Canada. Lots of materials in nature a…