Laserbeam Shaping Microstructures (IMAGE) Vienna University of Technology Caption A laser shines into the hydrogel (yellow), attaching molecules to it at specific points in space (green). Credit Vienna University of Technology 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.