3D Bioprint in Hydrogel (IMAGE) University of Copenhagen - Faculty of Science Caption 3D bioprinted structure containing green algae (Chlamydomonas) in a hydrogel. Credit Photo: Anja Lode, TU Dresden 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.