Fig. 4
From: Enhanced sperm isolation via bulk acoustic waves for high-throughput motility screening
The sperm trajectories with varying levels of motility in the vicinity of the generated microvortices. (a) Highly motile sperms after reaching the periphery of the vortices were able to escape and swim towards the channel wall. (b) The less motile sperms, trapped in the vortices rotating in a circular path with a velocity close to that of the vortices.
