An electrolysis-bubble-actuated micropump using electrowetting on dielectric (EWOD) for 1xN micro-sample switches

In this paper, the electrolysis-bubble-actuated micropump which takes advantage of EWOD (Electrowetting-on-Dielectric) to approach the feature of 1xN microfluidic switches is reported. With the time-sequence power control, microfluid can be transported by the electrolysis-bubble actuation and direct...

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Bibliographic Details
Published inTRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference pp. 2018 - 2021
Main Authors Sang-Chung Yang, Cheng-Hsien Liu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2009
Subjects
Dielectrics
Electrodes
Electrolytic bubble
EWOD
Micro flow switch
Microchannel
Microfluidics
Micropump
Micropumps
Rough surfaces
Surface roughness
Switches
Valves
Voltage
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Summary:In this paper, the electrolysis-bubble-actuated micropump which takes advantage of EWOD (Electrowetting-on-Dielectric) to approach the feature of 1xN microfluidic switches is reported. With the time-sequence power control, microfluid can be transported by the electrolysis-bubble actuation and directionally controlled by tuning the surface property of microchannels via EWOD. The advantages of this proposed micropump design not only achieve a net pumping flow but also integrate the switch function without the drawbacks that exist in the early reported micropumps and microfluidic switches, such as the complicated moving valves, large/long nozzle-diffuser structure, and high power consumption. Here we describe the design, operation principle and preliminary results of this micropump.
ISBN:1424441900
9781424441907
ISSN:2159-547X
DOI:10.1109/SENSOR.2009.5285659