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Mixing mechanism of microfluidic mixer with staggered virtual electrode based on light-actuated ac electroosmosis
L. Shi; H. Ding; X. Zhong; B. Yin; Z. Liu and T. Zhou
2021
Source PublicationMicromachines
ISSN2072666X
Volume12Issue:7
AbstractIn this paper, we present a novel microfluidic mixer with staggered virtual electrode based on light-actuated AC electroosmosis (LACE). We solve the coupled system of the flow field described by NavierStokes equations, the described electric field by a Laplace equation, and the concentration field described by a convectiondiffusion equation via a finite-element method (FEM). Moreover, we study the distribution of the flow, electric, and concentration fields in the microchannel, and reveal the generating mechanism of the rotating vortex on the cross-section of the microchannel and the mixing mechanism of the fluid sample. We also explore the influence of several key geometric parameters such as the length, width, and spacing of the virtual electrode, and the height of the microchannel on mixing performance; the relatively optimal mixer structure is thus obtained. The current micromixer provides a favorable fluid-mixing method based on an optical virtual electrode, and could promote the comprehensive integration of functions in modern microfluidic-analysis systems. 2021 by the authors. Licensee MDPI, Basel, Switzerland.
DOI10.3390/mi12070744
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Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/65425
Collection中国科学院长春光学精密机械与物理研究所
Recommended Citation
GB/T 7714
L. Shi,H. Ding,X. Zhong,et al. Mixing mechanism of microfluidic mixer with staggered virtual electrode based on light-actuated ac electroosmosis[J]. Micromachines,2021,12(7).
APA L. Shi,H. Ding,X. Zhong,B. Yin,&Z. Liu and T. Zhou.(2021).Mixing mechanism of microfluidic mixer with staggered virtual electrode based on light-actuated ac electroosmosis.Micromachines,12(7).
MLA L. Shi,et al."Mixing mechanism of microfluidic mixer with staggered virtual electrode based on light-actuated ac electroosmosis".Micromachines 12.7(2021).
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