Flow Device Diagram (IMAGE) University of Washington Caption This is a diagram showing how the microfluidics device works. Water mixed with salt and soap is injected into a spout (left back). The fluid travels through a series of posts (see enlarged segment) that cause the fluid to thicken. Credit University of Washington Usage Restrictions Photo credit required 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.