3-D Hydrogel Construct (IMAGE) Osaka University Caption This is a photograph of a 3-D hydrogel construct obtained through drop-on-drop multi-material bioprintinig. Credit Osaka 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.