Acoustic Tweezers (IMAGE) Duke University Caption Three proof of concept experimental setups that use acoustic tweezers in Petri dishes. From left to right, a standing pattern for sorting, a whirlpool for concentrating, and high-frequency beam-like waves for concentration and stimulation. Credit Tony Huang, Duke University 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.