To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S2. Pumping and collection of a single water droplet. Multibioinspired slippery surfaces with wettable bump arrays for droplets pumping Xiaoxuan Zhang, Lingyu Sun, Yu Wang, Feika Bian, Yuetong Wang, and Yuanjin Zhao PNAS. 2019. 116:20863-20868 DOI: 10.1073/pnas.1912467116 Download Original Video Browse All Videos »