Surface Coating of Bonded PDMS Microchannels by Atmospheric Pressure Microplasma Surface Coating of Bonded PDMS Microchannels
Surface Coating of Bonded PDMS Microchannels by Atmospheric Pressure Microplasma Surface Coating of Bonded PDMS Microchannels
复制标题
通过大气压微等离子体对键合 PDMS 微通道进行表面涂层 键合 PDMS 微通道表面涂层
DOI：
10.1002/ppap.201300123
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发表时间：
2014
影响因子：
3.5
通讯作者：
Bashir M
中科院分区：
文献类型：
--
作者：
Bashir M
密封微通道的表面涂层可用于微流体和芯片实验室设备中的各种应用。本文介绍了一种新的利用常压微等离子体涂覆键合聚二甲基硅氧烷（PDMS）微通道的技术。通过使用两种类型的电极布置产生等离子体：（i）具有介电屏障（DB）的针-铝箔和（ii）不具有DB的针-针配置。在这项研究中，微等离子体配置与DB被选择用于沉积。以单体乙二胺为有机前驱体进行等离子体聚合。在T形微通道中形成水包油微乳液，以测试等离子体聚合膜的稳定性和耐久性。使用傅里叶变换红外光谱、X射线光电子能谱、原子力显微镜和接触角测量对涂层进行表征。
The surface coating of sealed microchannels is useful for a variety of applications in microfluidics and lab‐on‐a‐chip devices. This paper demonstrates a novel coating technique for a bonded polydimethylsiloxane (PDMS) microchannel using atmospheric pressure microplasma. Plasma was generated by using two types of electrode arrangements: (i) needle–aluminum foil with dielectric barrier (DB) and (ii) needle–needle configuration without DB. The microplasma configuration with the DB was selected for deposition in this study. The monomer ethylenediamine was used as organic precursor for plasma polymerization. Oil‐in‐water microemulsions were formed in a T‐shaped microchannel in order to test the stability and durability of the plasma polymerized films. The coatings were characterized using Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy, atomic force microscopy, and contact angle measurements.