Maximizing friction by liquid flow clogging in confinement Shan Chen, Zhenjiang Guo, Hongguang Zhang, Ignacio Pagonabarraga and Xianren Zhang Eur. Phys. J. E, 45 7 (2022) 60 Published online: 11 July 2022 DOI: 10.1140/epje/s10189-022-00208-z