PE-brush-grafted system (IMAGE) University of Maryland Caption (left) Schematic of the PE-brush-grafted nanochannel system. (right) Flow reversal with applied electric field strength. Credit T. H. Pial et al., ACS Nano, 2021, DOI: 10.1021/acsnano.0c09248 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.