To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S3. Size-dependent colloid transport along a dead-end channel in the presence of a solute gradient (NaCl: ci = 2 mM, co = 0.02 mM). Particle diameters are (A) 0.06, (B) 0.19, (C) 0.47, (D) 0.78, and (E) 1.01 μm. Play speed is 50×. Size-dependent control of colloid transport via solute gradients in dead-end channels Sangwoo Shin, Eujin Um, Benedikt Sabass, Jesse T. Ault, Mohammad Rahimi, Patrick B. Warren, and Howard A. Stone PNAS. 2015. 113:257-261 DOI: 10.1073/pnas.1511484112 Download Original Video Browse All Videos »