An Enhanced Electroosmotic Micromixer with an Efficient Asymmetric Lateral Structure

作者：Zhou, Teng; Wang, Hanlin; Shi, Liuyong; Liu, Zhenyu; Joo, Sang Woo

来源：Micromachines, 2016, 7(12): 218.

DOI：10.3390/mi7120218

• microfluidics
• micromixer
• electroosmotic
• active mixer
• computational fluid dynamics

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.

• 出版日期2016-12
• 单位中国科学院长春光学精密机械与物理研究所; 海南大学