Magnetically driven rotation (IMAGE) Optica Caption A schematic diagram of the magnetic rotary microfilter on a flat surface is shown in (a). The rotary microfilter is magnetically turned in a liquid environment on the flat surface by applying a uniform magnetic field with different orientations (b). A schematic diagram of manipulating magnetically rotary microfilter in channel is shown in (c) and demonstrated in an alcohol solution (d). Credit Dong Wu, University of Science and Technology of China 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.