Desalination Microchannel (image) University of Texas at Austin Caption The left panel shows the salt (which is tagged with a fluorescent tracer) flowing upward after a voltage is applied by an electrode (the dark rectangle) jutting into the channel at just the point where it branches. In the right panel no voltage is being applied. Credit Courtesy Kyle Knust Usage Restrictions None 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.