Sturdy Gel Structure (image) University of Washington Caption A web-like, gel structure is formed after fluid passes through the flow device. The unit of measurement is 1 micron. Credit Environmental Molecular Sciences Laboratory and University of Washington Usage Restrictions Photo credit required 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.