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Micromachines 2016, 7(12), 218; doi:10.3390/mi7120218

An Enhanced Electroosmotic Micromixer with an Efficient Asymmetric Lateral Structure

1
Mechanical and Electrical Engineering College, Hainan University, Haikou 570228, Hainan, China
2
School of Mechanical Engineering, Yeungnam University, Gyongsan 712-719, Korea
3
Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Science, Changchun 130033, Jilin, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Xiangchun Xuan and Shizhi Qian
Received: 30 September 2016 / Revised: 17 November 2016 / Accepted: 24 November 2016 / Published: 1 December 2016
(This article belongs to the Special Issue Micro/Nano-Chip Electrokinetics)
View Full-Text   |   Download PDF [2266 KB, uploaded 1 December 2016]   |  

Abstract

Homogeneous and rapid mixing in microfluidic devices is difficult to accomplish, owing to the low Reynolds number associated with most flows in microfluidic channels. Here, an efficient electroosmotic micromixer based on a carefully designed lateral structure is demonstrated. The electroosmotic flow in this mixer with an asymmetrical structure induces enhanced disturbance in the micro channel, helping the fluid streams’ folding and stretching, thereby enabling appreciable mixing. Quantitative analysis of the mixing efficiency with respect to the potential applied and the flow rate suggests that the electroosmotic microfluidic mixer developed in the present work can achieve efficient mixing with low applied potential. View Full-Text
Keywords: microfluidics; micromixer; electroosmotic; active mixer; computational fluid dynamics microfluidics; micromixer; electroosmotic; active mixer; computational fluid dynamics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhou, T.; Wang, H.; Shi, L.; Liu, Z.; Joo, S.W. An Enhanced Electroosmotic Micromixer with an Efficient Asymmetric Lateral Structure. Micromachines 2016, 7, 218.

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