An Enhanced Electroosmotic Micromixer with an Efficient Asymmetric Lateral Structure

Micromachines

Zhenyu Liu¹  Teng Zhou²  Liuyong Shi²  Hanlin Wang²  Sang Woo Joo³ 

[1] Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Science, Changchun 130033, Jilin, China;Mechanical and Electrical Engineering College, Hainan University, Haikou 570228, Hainan, China;School of Mechanical Engineering, Yeungnam University, Gyongsan 712-719, Korea;

关键词: microfluidics;    micromixer;    electroosmotic;    active mixer;    computational fluid dynamics;   

DOI  :  10.3390/mi7120218

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown