Hydrogel coating on soft polymeric substrates for microfluidic devices
Hydrogel coating on soft polymeric substrates for microfluidic devices
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用于微流体装置的软聚合物基底上的水凝胶涂层
DOI：
10.1007/s00542-018-3853-y
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Furukawa Hidemitsu
中科院分区：
文献类型：
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作者：
Ahmed Kumkum;Yamada Naoya;Wada Masato;Kameyama Toshiki;Kawakami Masaru;Khosla Ajit;Furukawa Hidemitsu
在微制造MEMS致动器、传感器和生物医学器件中，软聚合物材料如PDMS因重量轻、成本低、耐腐蚀性高、柔性高和尺寸稳定性高而被广泛使用。这些材料在沿着其众多的有益功能的同时，由于其疏水的高摩擦表面和静摩擦，在真实的应用中也存在一些缺点。本工作以高亲水性水凝胶N，N，二甲基丙烯酰胺为单体，开发了一种在PDMS基底上制备水凝胶涂层的简便方法。这种凝胶本质上是高度亲水的，具有生物相容性，并且在潮湿条件下显示出非常低的摩擦系数值。研究了涂层的介电性能、润湿性和表面形貌，并对涂层与未涂层的表面进行了比较，以更清楚地了解涂层现象。
In microfabricated MEMS actuator, sensor and biomedical devices, soft polymeric materials like PDMS are widely used for lightweight, low cost, high corrosion resistance, high flexibility and high dimensional stability. Along with their numerous beneficial functions these materials have some shortcomings during real application for their hydrophobic high frictional surface and stiction. In this work we have developed a facile way of hydrogel coating on PDMS substrate by highly hydrophilic hydrogelsN,N, dimethylacrylamide as a monomer. This gel is highly hydrophilic in nature having biocompatibility and shows very low friction coefficient value in wet condition. Frictional property, wettability and the surface morphology were studied and comparison between coated and uncoated surface has been made to understand the coating phenomenon clearly.