Ferromagnetic 3D impellor-shaped micro-stirrer bar for micromixing

Arun K. Nallani; Jeong-Bong Lee

doi:10.1117/12.722098

15 May 2007 Ferromagnetic 3-D impellor-shaped micro-stirrer bar for micromixing

Arun K. Nallani, Jeong-Bong Lee

Proceedings Volume 6589, Smart Sensors, Actuators, and MEMS III; 65890C (2007) https://doi.org/10.1117/12.722098
Event: Microtechnologies for the New Millennium, 2007, Maspalomas, Gran Canaria, Spain

Abstract

We report the development of a high efficiency magnetic microfluidic mixer based on a novel 3D impellor-shaped ferromagnetic micro-stirrer bar. The 3D impellor-shaped micro-stirrer bar with 31.6º inclined angle is fabricated using titled (55º) SU-8 exposure technique. The 3-D inclined micro-stirrer bar causes 3-D perturbation of fluids resulting in rapid mixing in microscale. When compared with a vertical straight sidewall micro-stirrer bar, approximately 20% of mixing efficiency enhancement is achieved.

Citation Download Citation

Arun K. Nallani and Jeong-Bong Lee "Ferromagnetic 3-D impellor-shaped micro-stirrer bar for micromixing", Proc. SPIE 6589, Smart Sensors, Actuators, and MEMS III, 65890C (15 May 2007); https://doi.org/10.1117/12.722098

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