A Versatile Gripper (IMAGE) University at Buffalo Caption A robotic gripper developed in the lab of University at Buffalo engineer Ehsan Esfahani uses repulsion between magnets to adjust the stiffness of its grip, improving safety. Credit Douglas Levere / University at Buffalo Usage Restrictions This image may only be used in news reports discussing the research described in the associated press release. 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.