| 生物功能电极(Ⅳ)PP/GOD电极的电化学行为 |
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| 引用本文： | 胡根法,许书楷,吴辉煌,周绍民. 生物功能电极(Ⅳ)PP/GOD电极的电化学行为[J]. 厦门大学学报(自然科学版), 1991, 0(5) |
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| 作者姓名： | 胡根法 许书楷 吴辉煌 周绍民 |
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| 作者单位： | 厦门大学化学系 物理化学研究所(胡根法，许书楷，吴辉煌)，厦门大学化学系 物理化学研究所(周绍民) |
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| 摘 要： | 利用电化学固定化方法制备聚毗咯/葡萄糖氧化酶膜电极(PP/GOD),并研究其电化学行为,在除氧的磷酸盐缓冲溶液中经不同极化处理后的PP/GOD电极在循环伏安图上表现出不同电流峰,归因于聚吡咯电极氧化态的转变,GOD的存在引起PP/GOD电极与聚吡咯电极伏安行为的差异,讨论了PP/GOD电极对葡萄糖的响应性能,指出聚吡咯的完全氧化态PP~(++)可能参与酶反应中的氧还原过程。
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| 关 键 词： | 固定化酶 葡萄糖氧化酶 导电聚合物 生物电化学传感器 |
Biofunctional Electrodes IV. Electrochemical Behavior of PP/GOD Electrodes |
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| Hu Genfa Xu Shukai Wu Huihuang Zhou Shaomin. Biofunctional Electrodes IV. Electrochemical Behavior of PP/GOD Electrodes[J]. Journal of Xiamen University(Natural Science), 1991, 0(5) |
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| Authors: | Hu Genfa Xu Shukai Wu Huihuang Zhou Shaomin |
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| Abstract: | With electropolymerization of pyrrole, glucose oxidase (GOD) was immobilized in the polypyrrole matrix to construct PP/GOD enzyme electrodes, and their electrochemical behavior was studied. When PP/GOD electrodes were pretreated at different potentials in deoxygenated buffer solutions,they exhibited their respective characteristics on cyclic voltammograms, which was attributed to the transformation of oxidation state of polypyrrole. The presence of GOD in the polymer matrix was found to cause the voltametric difference of PP/GOD from PP electrodes. The current response of PP/GOD electrodes to glucose concentrations was discussed, the higher oxidation state of polypyrrole (PP+) was considered taking a part in the redox process of enzyme reaction. |
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| Keywords: | Immobilized enzymes Glucose oxidase Conductive polymer Electrochemical biosensor |
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