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  • Complete Filling of Liquid Metal in Comb-Shaped Transducers for Acoustofluidics

    Author(s)
    Guo, W
    Teo, AJT
    Ganan-Calvo, AM
    Song, C
    Nguyen, NT
    Xi, HD
    Tan, SH
    Griffith University Author(s)
    Nguyen, Nam-Trung
    Tan, Say Hwa H.
    Teo, Adrian J.
    Year published
    2018
    Metadata
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    Abstract
    We demonstrate the complete filling of both deionized water (DI water) and liquid metal (EGaIn) into closed-end microchannels driven by a constant pressure at the inlet. A mathematical model based on gas diffusion through porous PDMS wall is developed to unveil the physical mechanism in the filling process. The proposed theoretical analysis based on our model agrees well with the experimental observations. We also successfully generate traveling surface acoustic waves by actuating interdigitated microchannels filled with EGaIn. Our work will bring significant insights in the fabrication of liquid electrodes for various ...
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    We demonstrate the complete filling of both deionized water (DI water) and liquid metal (EGaIn) into closed-end microchannels driven by a constant pressure at the inlet. A mathematical model based on gas diffusion through porous PDMS wall is developed to unveil the physical mechanism in the filling process. The proposed theoretical analysis based on our model agrees well with the experimental observations. We also successfully generate traveling surface acoustic waves by actuating interdigitated microchannels filled with EGaIn. Our work will bring significant insights in the fabrication of liquid electrodes for various microfluidic lab-on-a-chip applications.
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    Conference Title
    22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
    Volume
    1
    Publisher URI
    https://cbmsociety.org/conferences/microtas2018/
    Subject
    Microelectromechanical systems (MEMS)
    Publication URI
    http://hdl.handle.net/10072/382601
    Collection
    • Conference outputs

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