Microplasma patterning of bonded microchannels using high-precision "injected" electrodes

Priest, Craig and Gruner, Philipp J. and Szili, Endre J. and Al-Bataineh, Sameer A. and Bradley, James W. and Ralston, John and Steele, David A. and Short, Robert D. (2011) Microplasma patterning of bonded microchannels using high-precision "injected" electrodes. Lab on a Chip, 11 (3). pp. 541-544. ISSN 1473-0197

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A rapid, high-precision method for localised plasma-treatment of bonded PDMS microchannels is demonstrated. Patterned electrodes were prepared by injection of molten gallium into preformed microchannel guides. The electrode guides were prepared without any additional fabrication steps compared to conventional microchannel fabrication. Alignment of the "injected" electrodes is precisely controlled by the photomask design, rather than positioning accuracy of alignment tools. Surface modification is detected using a fluorescent dye (Rhodamine B), revealing a well-defined micropattern with regions less than 100 mu m along the length of the microchannel.

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Journal Article
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Lab on a Chip
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24 Jan 2017 09:26
Last Modified:
22 Nov 2022 03:45