Hydrogle Developed at EPFL (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption The new hydrogel is a composite material consisting of a double-network matrix and a fiber network. Credit Alain Herzog / EPFL 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.