‘Gluing’ soft materials without glue

Science Daily  May 3, 2023 Electroadhesion can involve chemical bonds, like ionic bonds, or more physical connections, like ensnaring polymer chains together. Researchers at the University of Maryland have demonstrated a universal, ‘electroadhesion’ technique that can adhere any soft materials to each other just by running electricity through them. They tested a gel in addition to three types of capsules made of alginate or chitosan that were either positively or negatively charged. When attached to graphite electrodes and exposed to a 10-V electric field for around 10 seconds, the oppositely charged materials stuck together strong enough to withstand gravity. By […]