Researchers Use Ultrasound to Sort Live Cells, Expedite Biomedical Research (video) North Carolina State University Share Print E-Mail Loading video... Caption Researchers from North Carolina State University and University of North Carolina at Chapel Hill have developed a new technique that uses sound waves to rapidly separate selected collections of cells for use in biomedical research. Specifically, the technique uses focused, relatively high-frequency sound waves that are translated into a wave of pressure within the substrate itself. When that wave of force hits a targeted micropallet, the pallet is lifted off the substrate -- as seen in this video -- and can be removed, together with its attached cells, for further study. Credit North Carolina State University Usage Restrictions Video credit must be given. Share Print E-Mail 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.