Nematode Worm Gets Caught in a Gel (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption This animation shows how a C. elegans worm can be immobilized and then set free again in a microfluidic chamber, using a special solution and temperature variations. Credit EPFL 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.