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首页> 外文期刊>Electroanalysis >One dimensional volume-phase transition of N-isopropylacrylamide gels on the surface of gold electrodes
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One dimensional volume-phase transition of N-isopropylacrylamide gels on the surface of gold electrodes

机译：金电极表面N-异丙基丙烯酰胺凝胶的一维体积-相变

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摘要

Numerous 500-mu m layers of the cross-linked poly(N-isopropylacrylamide) gel were anchored on the surface of gold electrodes. It has been found that at circa 34 degrees C, as it occurs in bulk gels, the gel layers undergo the volume phase transition (effective shrinking). Since the adhesion of the gel layers to gold appeared to be sufficiently strong, the phase transition was in fact one-dimensional. The shrinking process has been examined optically and voltammetrically using 1,1'-ferrocenedimethanol as a model electroactive analyte. Good adhesion of poly(N-isopropylacrylamide) gel to gold electrodes makes the gel layers potential hosts for enzymes and other catalysts. On the other hand the shrinking process may offer a convenient way to replace analytes and catalysts in the gel layers.
机译：在金电极的表面上锚定了许多500微米的交联聚N-异丙基丙烯酰胺凝胶。已经发现，在大约34℃下，如在本体凝胶中发生的那样，凝胶层经历体积相变（有效收缩）。因为凝胶层对金的粘附力似乎足够强，所以相变实际上是一维的。使用1,1'-二茂铁二甲醇作为模型电活性分析物，通过光学和伏安法检查了收缩过程。聚（N-异丙基丙烯酰胺）凝胶对金电极的良好附着力使凝胶层成为酶和其他催化剂的潜在宿主。另一方面，收缩过程可以提供一种方便的方法来替换凝胶层中的分析物和催化剂。

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