Solvent vapor treatment controls surface wettability in PMMA femtosecond-laser-ablated microchannels

被引：20

作者：

De Marco, Carmela ^{[1
]}

Eaton, Shane M. ^{[2
]}

Martinez-Vazquez, Rebeca ^{[2
]}

Rampini, Stefano ^{[3
]}

Cerullo, Giulio ^{[2
,3
]}

Levi, Marinella ^{[1
]}

Turri, Stefano ^{[1
]}

Osellame, Roberto ^{[2
]}

机构：

[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, I-20133 Milan, Italy

[2] CNR, IFN, I-20133 Milan, Italy

[3] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

来源：

MICROFLUIDICS AND NANOFLUIDICS | 2013年 / 14卷 / 1-2期

关键词：

Femtosecond laser; Ablation; Hydrophilic; Hydrophobic; Passive valve; Microfluidics;

D O I：

10.1007/s10404-012-1035-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A solvent vapor treatment was applied to femtosecond-laser-ablated microchannels in PMMA to selectively restore the original hydrophilic wetting behavior of the pristine surface. The hydrophobic surface of the microchannels from the submicron porosity induced by ablation becomes smoother and more transparent after the treatment. This simple and low-cost method, together with suitable masking, can produce wettability patterns that may be exploited to develop passive microfluidic elements such as valves and mixers.

引用

页码：171 / 176

页数：6

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