Cell Sorting (IMAGE) Penn State Caption Slightly larger than a dime, this cell-sorting device uses two sound beams to act as acoustic tweezers. Credit Penn State and Ascent BioNano Technologies 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.