Chronic wounds in diabetics often get out of control because oxygen does not reach the deepest layers of injured tissue. A new oxygen gel developed at UC Riverside provides a continuous flow of oxygen exactly where it is needed most. The gel works using a small battery-powered system. In high-risk mice, wounds healed over several weeks instead of worsening. This innovation could dramatically reduce the number of amputations. It may also open the door to growing organs in the lab.