Observation of hydrophobic-like behavior in geometrically patterned hydrophilic microchannels.
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ABSTRACT: We present our observation of meta-hydrophobicity, where geometrically patterned surfaces make hydrophilic microchannels exhibit hydrophobic-like behaviors. We analyze the wetting-induced energy decrease that results from the surface geometries and experimentally demonstrate how those geometries can modulate the dynamics of capillary-driven wetting and evaporation-driven drying of microfluidic systems. Our results also show that the modulated wetting dynamics can be employed to generate regulated patterns of microbubbles.
SUBMITTER: Parikesit GO
PROVIDER: S-EPMC2966485 | biostudies-other | 2010
REPOSITORIES: biostudies-other
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