Fig. 1 (IMAGE) Osaka University Caption Liquid permittivity gradient-mediated ionic current measurements for enhanced sensitivity of nanopore DNA sensors. Credit Makusu Tsutsui Usage Restrictions No restrictions License Original 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.