A magnetic microstirrer and array for microfluidic mixing

Author

Lu, Liang-Hsuan ; Ryu, Kee Suk ; Liu, Chang

Author_Institution

Nanotechnology Lab., Illinois Univ., Urbana, IL, USA

Volume

11

Issue

5

fYear

2002

fDate

10/1/2002 12:00:00 AM

Firstpage

462

Lastpage

469

Abstract

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.

Keywords

arrays; biological techniques; electromagnetic actuators; microactuators; microfluidics; micromachining; mixing; biological laboratory-on-a-chip applications; computer-aided fluid simulation; fabrication process; magnetic actuation; magnetic microstirrer; microchambers; microchannels; microfluidics; micromachined magnetic-bar micromixer; microscale fluid mixing; mixer array; on-chip biochemical analysis; rotating magnetic field; surface-micromachining fabrication process; Chaos; Computational modeling; Fabrication; Laboratories; Large-scale systems; Magnetic fields; Magnetic liquids; Microfluidics; Micromagnetics; Nanotechnology;

fLanguage

English

Journal_Title

Microelectromechanical Systems, Journal of

Publisher

ieee

ISSN

1057-7157

Type

jour

DOI

10.1109/JMEMS.2002.802899

Filename

1038840