Strong and Self-Healing Ion Gels (IMAGE) Yokohama National University Caption The ion gel exhibits fast self-healing ability at room temperature by reforming hydrogen bonds at the damaged surface. The fracture stress of the ion gel after healing 3 h is comparable to that of the pristine ion gel. Credit Yokohama National University Usage Restrictions None License Licensed 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.