Xinqiao Jia, University of Delaware (IMAGE) University of Delaware Caption Xinqiao Jia and colleagues at the University of Delaware have developed a "smart" gel that can deliver medicine on demand in response to force. Credit University of Delaware Usage Restrictions Image must include credit to University of Delaware 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.