Wound dressing (IMAGE) Washington University in St. Louis Caption In early experiments, Guan and his team found that after applying a single dose of their wound dressing into wounds in young diabetic mice, the wounds completely closed at day 14. Wounds treated with the hydrogel alone or left untreated were reduced to roughly half of their original size. Credit Guan Lab/WashU Usage Restrictions Use allowed with attribution License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.