| 介孔碳修饰玻碳电极上葡萄糖氧化酶的直接电化学 |
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| 引用本文： | 王琨琦,朱琳,邢巍.介孔碳修饰玻碳电极上葡萄糖氧化酶的直接电化学[J].电化学,2008,14(2):121. |
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| 作者姓名： | 王琨琦 朱琳 邢巍 |
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| 作者单位： | 中国科学院长春应用化学研究所,中国科学院长春应用化学研究所,中国科学院长春应用化学研究所 吉林长春130022,长春工程学院,吉林长春130021,吉林长春130022,吉林长春130022 |
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| 摘 要： | 使用简单的方法将葡萄糖氧化酶(GOD)固定在介孔碳(Mesoporous Carbon)修饰的玻碳电极(GCE)表面.循环伏安测试表明:修饰电极上的GOD在0.1mol/L磷酸缓冲溶液(PBS)(pH=7.1)中发生了准可逆的氧化还原反应,其克式量电位为-0.4294 V,并且该电化学反应包含有两电子两质子的传递.在氮气饱和的情况下,以羧基二茂铁作为电子传递中介体,GOD能将葡萄糖彻底催化氧化,可见介孔碳修饰电极上的GOD保持了其生物学活性.
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| 关 键 词： | 葡萄糖氧化酶 介孔碳 直接电化学 |
| 收稿时间： | 2008-05-28 |
Direct Electrochemistry of GOD on Glassy Carbon Electrode Modified with Mesoporous Carbon |
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| WANG Kun-qi,ZHU Lin,XING Wei.Direct Electrochemistry of GOD on Glassy Carbon Electrode Modified with Mesoporous Carbon[J].Electrochemistry,2008,14(2):121. |
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| Authors: | WANG Kun-qi ZHU Lin XING Wei |
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| Institution: | WANG Kun-qi1,2,ZHU Lin1,XING Wei1(1.Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,Jilin,China,2.Changchun Institute of Technology,Changchun 130021,China) |
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| Abstract: | Glucose oxidase(GOD) is immobilized on glassy carbon electrode mesoporous carbon by simple method.Cyclic voltammetric results indicated that on GOD of the modified electrode a quasi-reversible redox reaction took place(GCE) surface modified at a formal potential of-0.4294 V in 0.1 mol/L phosphate buffer solution(PBS)(pH 7.1).The electrochemical reaction consisted of a two-electron transfer coupled with a two-proton transfer.The GOD can completely catalyze oxidation of glucose via electron transfer intermedi... |
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| Keywords: | glucose oxidase mesoporous carbon direct electrochemistry |
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