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

作者: Craig Priest , Philipp J. Gruner , Endre J. Szili , Sameer A. Al-Bataineh , James W. Bradley

DOI: 10.1039/C0LC00339E

关键词: GalliumElectrodeNanotechnologyFabricationMicroplasmaRhodamine BMaterials scienceMicrochannelSurface modificationPhotomask

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

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