ELP Hydrogel (IMAGE) Brigham and Women's Hospital Caption Bioengineers have developed a new protein-based gel that, when exposed to light, mimics many of the properties of elastic tissue, such as skin and blood vessels. Credit Courtesy of Nasim Annabi, Brigham and Women's Hospital. Usage Restrictions Please credit Nasim Annabi, Brigham and Women's Hospital 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.