Figure 1 (IMAGE) Institute for Basic Science Caption This new hydrogel system (IT-IC) can protect the gel from destruction by external forces. In conventional covalently crosslinked hydrogels (e.g., methacrylated hyaluronic acid, referred to as MeHA), fragmentation occurs due to the destruction of covalent bonds during the injection process, but IT-IC hydrogels maintain covalent bonds due to stress dissipation with multiple bonds containing biphenyl structure and allow injection into narrow areas. Credit Institute for Basic Science Usage Restrictions Attribution Required 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.