Wearable Sensors Created from Biocompatible Hydrogel

Engineers and biologists at MIT have teamed up to design a new “living material” — a tough, stretchy, biocompatible sheet of hydrogel injected with live cells that are genetically programmed to light up in the presence of certain chemicals. In a paper published in the Proceedings of the National Academy of Sciences, the researchers demonstrate the new material's potential for sensing chemicals, both in the environment and in the human body.