2D acoustofluidic distributions in micro-chambers modulated by Sierpiński-type structural plates

Abstract In this study, a series of Sierpiński-type structural plates have been artificially introduced to generate diversified acoustofluidic distributions in the originally-static microfluidic chambers, which are stimulated under the oscillation of incident acoustic waves at different input freque...

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Bibliographic Details
Published in:	Physica scripta Vol. 98; no. 11; pp. 115258 - 115282
Main Authors:	Huang, Huiyu, Chen, Hao, Li, Chen, Liu, Pengzhan, Su, Songfei, Weng, Ruiting, Tang, Qiang
Format:	Journal Article
Language:	English
Published:	IOP Publishing 01-11-2023
Subjects:	acoustofluidic field frequency modulation Sierpiński-type fractal ultrasonic micro/nano manipulation
Online Access:	Get full text
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Summary:	Abstract In this study, a series of Sierpiński-type structural plates have been artificially introduced to generate diversified acoustofluidic distributions in the originally-static microfluidic chambers, which are stimulated under the oscillation of incident acoustic waves at different input frequency points. The complicated interactions between quasi/pseudo-Sierpiński-carpet shaped structural plates and incident ultrasonic waves, including acoustic reflection and diffraction, can initiate sophisticated spatio-temporal discrepancies along the sound propagation path and induce heterogeneous acoustic streaming vortices. In comparison with the existing construction strategies of microfluidic lab-on-a-chip devices, the introduction of fractalized elements like quasi/pseudo-Sierpiński-carpet shaped structural components can provide remarkable insights and expand application scenarios of unconventional acoustofluidic approaches, which is conducive to driving ultrasonic micro/nano manipulation technology from monotonousness to diversification. The preliminary research demonstrates the feasibility of considering Sierpiński-type structural features as tunable ingredients to customize acoustofluidic apparatuses for the exploration of topographical manipulation of micro/nano-scale particles and orientational operation of biological specimens.
Bibliography:	PHYSSCR-124802.R1
ISSN:	0031-8949 1402-4896
DOI:	10.1088/1402-4896/ad03c3