微流控
润湿
材料科学
墨水池
纳米技术
毛细管作用
喷墨打印
频道(广播)
计算机科学
复合材料
电信
作者
Maria P. Sousa,João F. Mano
出处
期刊:Cellulose
[Springer Nature]
日期:2013-07-25
卷期号:20 (5): 2185-2190
被引量:51
标识
DOI:10.1007/s10570-013-9991-6
摘要
This work outlines inexpensive patterning methodologies to create open-air microfluidic paper-based devices. A phase-separation methodology was used to obtain biomimetic superhydrophobic paper, hierarchically composed by micro and nano topographies. Writing and printing are simple actions that can be used to pattern flat superhydrophobic paper with more wettable channels. In particular, inkjet printing permits controlling the wettability of the surface by changing the darkness of the printed regions. The difference between capillary forces provides the possibility to control and drive liquid flows through the open path lines, just by titling the piece of paper. Additionally, maintaining a continuous flow, it is possible to direct the liquid at different volumetric rates in a horizontal position along non-linear channel paths printed/written over the surface.
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