Mu-Gripper (IMAGE) Johns Hopkins University Caption This image depicts an mu-gripper near the opening of an endoscopic catheter. Credit Evin Gultepe, Gracias Lab, Johns Hopkins 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.