Acoustic Trap (IMAGE) Washington University in St. Louis Caption An acoustic trap created by J. Mark Meacham and his lab takes advantage of material properties of the cell bodies to hold them in place without damaging them. Credit Meacham Lab Usage Restrictions Can be used with proper attribution. 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.