Biomicrofluidics. 2010 Oct 8;4(4):44103. doi: 10.1063/1.3499416.
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.
我们提出了对亚疏水性的观察，其中几何图案化的表面使亲水性微通道表现出类似疏水性的行为。我们分析了由表面几何形状引起的润湿诱导的能量降低，并通过实验证明了这些几何形状如何能够调节毛细驱动润湿和蒸发驱动干燥的微流控系统的动力学。我们的结果还表明，调制的润湿动力学可用于产生受控的微泡图案。
