Design and simulation of sheathless separation device based on standing surface acoustic waves

Jinhao Cheng; Yong He; Meng Zhang; Yu Huang; Junjie Jiao; Zhong Fang

doi:10.1117/12.2682904

16 June 2023 Design and simulation of sheathless separation device based on standing surface acoustic waves

Jinhao Cheng, Yong He, Meng Zhang, Yu Huang, Junjie Jiao, Zhong Fang

Proceedings Volume 12703, Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023); 127032X (2023) https://doi.org/10.1117/12.2682904
Event: Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023), 2023, Hong Kong, China

Abstract

In this paper, a sheathless separation device is designed to solve the problem of insufficient controllability and low throughout due to the introduction of sheath flow in conventional Standing Surface Acoustic Wave (SSAW) microfluidics. The spatially reciprocating microchannel structure is matched with the SSAW pressure field to achieve focusing before separation of particles. The simulation of displacement field on the substrate surface and acoustic pressure field in the microchannel verifies the reliability of design. Meanwhile, the effects of average inlet flow rate and acoustic pressure amplitude on the particle motion trajectory are analyzed in detail, and the results show that these two parameters can be adjusted to separate particles of different sizes, and further give a reasonable parameter interval to complete particle separation. The above results provide a reference and guidance for the design and experiment of sheathless separation devices.

Citation Download Citation

Jinhao Cheng, Yong He, Meng Zhang, Yu Huang, Junjie Jiao, and Zhong Fang "Design and simulation of sheathless separation device based on standing surface acoustic waves", Proc. SPIE 12703, Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023), 127032X (16 June 2023); https://doi.org/10.1117/12.2682904

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