Fig. 2
From: Enhanced sperm isolation via bulk acoustic waves for high-throughput motility screening
(a) Acoustic pressure field in the microfluidic channel. (b) Steady streaming flow in the microfluidic channel driven by the acoustic source shows four vortices. (c) Experimental observation of vortices around the horseshoe structure (see supplementary information ST2). The highlighted green shows number of sperms inside the vortex that are stained with a fluorescent dye.
