| 微过氧化酶的共振拉曼和表面增强拉曼光谱研究 |
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| 引用本文： | 郑军伟,顾仁敖,陆天虹.微过氧化酶的共振拉曼和表面增强拉曼光谱研究[J].光谱学与光谱分析,2000,20(5):689-691. |
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| 作者姓名： | 郑军伟 顾仁敖 陆天虹 |
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| 作者单位： | 1. 苏州大学化学系,215006,苏州
2. 中科院长春应用化学研究所,130022,长春 |
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| 基金项目： | 国家自然科学基金，苏州大学启动基金资助项目 |
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| 摘 要： | 采用电化学、共振拉曼和表面增强共振拉曼光谱研究了溶液态和吸附态微过氧化酶－１１（ＭＰ－１１）的电子传递及溶液和界面结构特征。结果表明，ＭＰ－１１在溶液中中心血红素铁以六配位状态存在，吸附于粗糙银电极表面时，则因ＭＰ－１１分子的重新取向而部分转化为五配位状态，氧化还原反应进一步促进这种配位状态的转化，并且配位状态也直接影响ＭＰ－１１的氧化还原性质。
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| 关 键 词： | 微过氧化酶 电化学 共振拉曼光谱 SERRS |
Resonance Raman and Surface-enhanced Raman Spectroscopic Study of Microperoxidase-11 |
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| Junwei ZHENG,Renao GU,Tianhong LU.Resonance Raman and Surface-enhanced Raman Spectroscopic Study of Microperoxidase-11[J].Spectroscopy and Spectral Analysis,2000,20(5):689-691. |
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| Authors: | Junwei ZHENG Renao GU Tianhong LU |
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| Institution: | Department of Chemistry, Suzhou University, 215006 Suzhou. |
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| Abstract: | The electron transfer and structure of micropero xidase-11(MP-11) in solution and at electrode/solution interface were studied by electrochemical,resonance Raman and surface-enhanced Raman spectros copic techniques.Results show that the central iron in heme group was six-coord inated in solution,whereas it was converted to five-coordinated state as MP-11 was adsorbed on the surface of a roughened silver electrode,due to the reorient ation of MP-11 molecules.The electrochemical properties of MP-11 were directly affected by the coordination state of heme iron. |
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| Keywords: | Microperoxidase-11 Electrochemistry Resonance Raman spectroscopy Surface-enhanced Raman spectroscopy |
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