Protocell-Based Micro-Actuator (IMAGE) University of Bristol Caption "Protocell-based micro-actuator; single giant protocells (red) are seen attached at both ends of a mechanically energized hydrogel filament (green)" Nature Chemistry (2021). Doi: 10.1038/s41557-021-00728-9 Credit S Mann 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.