吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (01): 98-102.

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Micropump with electroosmotic actuators and PDMS diaphragm

WEI Wei1,2, GUO Shu-xiang2   

  1. 1. College of Automation, Tianjin University of Technology, Tianjin 300384, China;
    2. Faculty of Engineering, Kagawa University, Takamatsu 761-0396, Japan
  • Received:2010-04-19 Online:2012-01-01 Published:2012-01-01

Abstract:

A novel polydimethyl siloxane(PDMS) diaphram micropump was developed. A mathematical model was built for the micropump under the ideal condition. A prototype of the pump was designed and manufactured in the laboratory. It was found by experiment that a superior pumping performance was achieved at electroosmotic(EO) actuator voltage duty ratio of 30%. The maximum output of prototype is 133 μL/min(using pure water as working liquid)under an input voltage of 30 V and an exciting frequency of 1.4 Hz. A series of experiments demonstrated that the electroosmotically actuated PDMS diaphram micropump is characterized by good working stability, easy to control its flow output and independent of property of the delivered drug, being suitable for the biochemical analysis system.

Key words: mechanical design, electroosmotic actuator, PDMS diaphragm micropump, drug delivery system, biochemical analysis system

CLC Number: 

  • TH137.33


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