Microplasma patterning of bonded microchannels using high-precision "injected" electrodes
Date
2011
Authors
Priest, C.
Gruner, P.J.
Szili, E.J.
Al Bataineh, S.A.
Bradley, J.W.
Ralston, J.
Steele, D.A.
Short, R.D.
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Journal article
Citation
Lab on a Chip, 2011; 11(3):541-544
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Abstract
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 µm along the length of the microchannel.
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Data source: Supplementary Movie, http://www.rsc.org/suppdata/lc/c0/c0lc00339e/c0lc00339e.mpg
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Copyright 2011 Royal Society of Chemistry