Hyakutake, Toru Graduate School of Natural Science and Technology, Okayama University
Hashimoto, Yuki Graduate School of Natural Science and Technology, Okayama University
Yanase, Shinichiro Graduate School of Natural Science and Technology, Okayama University
Matsuura, Koji Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
Naruse, Keiji Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
This paper describes a study in which numerical simulations were applied to improve the separation efficiency of a microfluidic-based sperm sorter. Initially, the motion of 31 sperm were modeled as a sinusoidal wave. The modeled sperm were expected to move while vibrating in the fluid within the microchannel. In this analysis, the number of sperm extracted at the outlet channel and the rate of movement of the highly motile sperm were obtained for a wide range of flow velocities within the microchannel. By varying the channel height, and the width and the position of the sperm-inlet channel, we confirmed that the separation efficiency was highly dependent on the fluid velocity within the channel. These results will be valuable for improving the device configuration, and might help to realize further improvements in efficiency in the future.
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