Sensing (IMAGE) NASA/Johnson Space Center Caption In nanopore sensing, just as water flows through a drain, an ionic current flows through a nanopore. When molecules pass through the hole the current is disrupted in characteristic ways, similar to the way the water flow would change if you placed objects in the drain. Credit <a target="_blank"href="http://nanoporetech.com">nanoporetech.com</a> 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.