University of Fribourg

​It's always helpful if materials let you know when they're under stress, so that changes can be made before catastrophic failures occur. A new polymer is designed to provide such a warning, as it glows when stretched.

An organism that is pretty good at generating biocompatible power (for itself, at least) is the electric eel, and scientists have now used the high-voltage species as a blueprint for a promising new self-charging device that could one day power things like pacemakers and prosthetics.

Scientists are working on biological fuel cells, that could be used to power medical implants using the patient's own blood sugar.

Newly-created polymers liquefy and fill in scratches when exposed to UV light, then resolidify once the light source is removed.