| 血红素LB膜的电化学行为 |
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| 引用本文： | 郭志坚,白燕,欧阳健明,程涛. 血红素LB膜的电化学行为[J]. 分析测试学报, 2002, 21(4): 71-73 |
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| 作者姓名： | 郭志坚 白燕 欧阳健明 程涛 |
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| 作者单位： | 暨南大学化学系,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金资助项目 (20031010) |
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| 摘 要： | 采用循环伏安法研究了血红素与脑磷脂混合Y型LB（Langmuir-Blodgett）膜在玻碳电极上的电化学行为，结果表明血红素LB膜有良好的电化学活性，在0．1mol/L KCl溶液中有一对氧化还原峰（－0．42V／－0．30V）；将血红素LB膜转移到玻碳电极表面得到的血红素LB膜修饰电极（heme LB-GC）对溶液中溶解氧的电化学还原有良好的催化作用，其催化还原过程具有不可逆电荷传递特性。
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| 关 键 词： | 血红素 电化学行为 Langmuir－Blodgett膜 修饰电极 氧 还原 循环伏安法 生物膜 |
| 文章编号： | 1004-4957(2002)04-0071-03 |
| 修稿时间： | 2002-04-09 |
Electrochemical Behavior of Heme Langmuir _ Blodgett Film |
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| Abstract: | Stable Langmuir- Blodgett(LB) films of mixture of heme and phosphatidylethanolamine can be formed on water subphase and were transfered to a glassy carbon electrode to prepare a heme LB film- modified electrode. Electrochemical behaviors of the modified electrode were studied by cyclic voltammetry. Cyclic voltammograms of the electrode exhibited a pair of stable redox wave with peak potentials at -420 mV/-300 mV. The LB film- modified electrode showed a good electrocatalytic reduction capacity for dissolved oxygen in solution. Some factors affecting the electrochemical behavior of the modified electrode were evaluated. |
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| Keywords: | Heme Langmuir- Blodgett film Modified electrode Oxygen Reduction Cyclic voltammetry |
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