Parallel scaled capillary-assembled stepwise microchannel device (IMAGE) Particuology Caption Scientists from Tsinghua University, Beijing, China developed an efficient scaling-up method of microchannel droplet generators based on low-cost 3D print technology. Credit Kai Wang, State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. 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.