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dc.contributor.authorSchutzius, Thomas M.
dc.contributor.authorElsharkawy, Mohamed
dc.contributor.authorTiwari, Manish K.
dc.contributor.authorMegaridis, Constantine M.
dc.date.accessioned2013-11-19T21:15:32Z
dc.date.available2014-04-14T19:56:10Z
dc.date.issued2012-12
dc.identifier.bibliographicCitationSchutzius TM, Elsharkawy M, Tiwari MK, Megaridis CM. Surface tension confined (STC) tracks for capillary-driven transport of low surface tension liquids. Lab on a Chip. Nov 13 2012;12(24):5237-5242. doi: 10.1039/c2lc40849jen_US
dc.identifier.issn1473-0189
dc.identifier.urihttp://hdl.handle.net/10027/10561
dc.descriptionPost print version of article may differ from published version. The definitive version is available through Royal Society of Chemistry at DOI:10.1039/c2lc40849j.en_US
dc.description.abstractSurface tension confined (STC) open tracks for pumpless transport of low-surface tension liquids (e.g., acetone, ethanol, hexadecane) on microfluidic chips are fabricated using a large-area, wet-processing technique. Wettable, paraffin-wax, submillimeter-wide tracks are applied by a fountain-pen procedure on superoleophobic, fluoroacrylic-carbon nanofiber (CNF) composite coatings. The fabricated anisotropic wetting patterns confine the low-surface-tension liquids onto the flow tracks, driving them with meniscus velocities up to 3.1 cm s(-1). Scaling arguments and Washburn's equation provide estimates of the liquid velocities measured in the STC tracks. These tracks are also shown to act as rails for directional sliding control of mm-sized water droplets. The present facile top-down patterned wettability approach can be extended to deposit micrometer-wide tracks, which bear promise for pumpless handling of low-surface tension liquids (e.g., aqueous solutions containing alcohols or surfactants) in lab-on-a-chip type applications or in low power, high-throughput bio-microfluidics for health care applications.en_US
dc.language.isoen_USen_US
dc.publisherRoyal Society of Chemistryen_US
dc.titleSurface Tension Confined (STC) Tracks for Capillary-Driven Transport of Low Surface Tension Liquidsen_US
dc.typeArticleen_US


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