Gelbots do 'The Worm' (VIDEO) Johns Hopkins University This video is under embargo. Please login to access this video. Caption Soft robots made of hydrogel are made to crawl during temperature changes. Credit Aishwarya Pantula/Johns Hopkins University Usage Restrictions None License Original 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.