Acoustic Focusing of PS Microparticles (VIDEO) Shinshu University This video is under embargo. Please login to access this video. Caption (Left) In turning off the acoustic force, the flow stream was divided almost equally over the three branches. (Right) Upon turning on the acoustic force, all the PS beads concentrated at the center of the microchannel and flowed into the central branch. Credit Copyright © 2019 Elsevier B.V. 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.