Microwave plasma treatment of polymer surface for irreversible sealing of microfluidic devices

被引：41
作者：
Hui, AYN
Wang, G
Lin, BC
Chan, WT
机构：
[1] Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China
[2] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
来源：
LAB ON A CHIP | 2005年 / 5卷 / 10期
关键词：
D O I：
10.1039/b504271b
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Microwave plasma was generated in a glass bottle containing 2 - 3 Torr of oxygen for plasma treatment of a polymer surface. A "kitchen microwave oven'' and a dedicated microwave digestion oven were used as the power source. Poly( dimethylsiloxane) ( PDMS) slabs treated by a 30 W plasma for 30 - 60 s sealed irreversibly to form microfluidic devices that can sustain solution flow of an applied pressure of 42 psi without leaking. Experimental set up and conditions for the production of a homogeneous plasma to activate the PDMS surface for irreversible sealing are described in detail. The surface of a microwave plasma-treated PDMS slab was characterized using atomic force microscopy (AFM) and attenuated total reflection - Fourier Transform infrared spectroscopy (ATR-FTIR). The plasma-treated surface bears silica characteristics.
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收藏
页码：1173 / 1177
页数：5
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