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A magnetic microstirrer and array for microfluidic mixing

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3 Author(s)
Liang-Hsuan Lu ; Nanotechnology Lab., Illinois Univ., Urbana, IL, USA ; Kee Suk Ryu ; Chang Liu

We report the development of a micromachined magnetic-bar micromixer for microscale fluid mixing in biological laboratory-on-a-chip applications. The mixer design is inspired by large scale magnetic bar mixers. A rotating magnetic field causes a single magnetic bar or an array of them to rotate rapidly within a fluid environment. A fabrication process of the magnetic bar mixer is developed. Results of fluid mixing in micro channels and chambers are investigated using experimental means and computer-aided fluid simulation.

Published in:

Journal of Microelectromechanical Systems  (Volume:11 ,  Issue: 5 )