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首页> 外文期刊>Applied Surface Science >Thiolated polyethylene oxide as a non-fouling element for nano-patterned bio-devices
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Thiolated polyethylene oxide as a non-fouling element for nano-patterned bio-devices

机译：硫醇化的聚环氧乙烷作为纳米图案生物设备的防污元素

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摘要

This work describes the synthesis of a thiolated polyethylene oxide that self-assembles on gold to create a non-fouling surface. Thiolated polyethylene oxide was synthesised by reacting 16-mercaptohexadecanoic acid with polyethylene glycol mono methyl ether. The coverage of the thiolated polyethylene oxide on gold was studied by cyclic voltammetry, and the modified surfaces were characterised by X-ray photoelectron spectroscopy and ellipsometry. Protein resistance was assessed using quartz crystal microbalance. Results showed a non-fouling character produced by the thiolated polyethylene oxide. The synthesised product was used as the passivation layer on nano-patterned surfaces consisting of arrayed nano-spots, fabricated by plasma based colloidal lithography. The specific adsorption of anti-bovine serum albumin in the mercaptohex-adecanoic acid spots was verified by atomic force microscopy.
机译：这项工作描述了在金上自组装形成不结垢表面的硫醇化聚环氧乙烷的合成。通过使16-巯基十六烷酸与聚乙二醇单甲醚反应合成硫代聚环氧乙烷。通过循环伏安法研究了硫醇化聚环氧乙烷在金上的覆盖率，并通过X射线光电子能谱和椭圆光度法对改性后的表面进行了表征。使用石英晶体微量天平评估蛋白质抗性。结果表明，由硫醇化的聚环氧乙烷产生的无污垢特性。合成的产物用作由基于等离子体的胶体光刻术制造的，由阵列的纳米点组成的纳米图案表面上的钝化层。通过原子力显微镜证实了抗牛血清白蛋白在巯基己糖-癸酸斑点中的特异性吸附。

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