Cross Section (image) Okinawa Institute of Science and Technology (OIST) Graduate University Share Print E-Mail Caption By mounting the microfluidic device on a microscope and adding microbeads, the researchers could visualize the vortex that formed at the cross section. The colored arrows indicate the direction of the flow inside the device. Credit Okinawa Institute of Science and Technology Usage Restrictions Use appropriate credit. 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.