| 吸附色素蛋白与纳米银粒子间的光诱导电子传递 |
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| 引用本文： | 郑军伟,周群,丁红.吸附色素蛋白与纳米银粒子间的光诱导电子传递[J].高等学校化学学报,2003,24(3):419-421. |
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| 作者姓名： | 郑军伟 周群 丁红 |
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| 作者单位： | 1. 苏州大学化学系, 苏州 215006;
2. 吉林大学无机合成与制备国家重点实验室, 长春 130023 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 0 0 730 2 8)，江苏省教育委员会现代光学开放实验室资助 |
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| 摘 要： | 采用表面增强拉曼光谱研究了吸附态微过氧化物酶和细胞色素c的光诱导还原.结果表明,吸附于粗糙银电极表面的过氧化物酶和细胞色素c在413nm激光连续照射下被部分还原.光诱导还原可归因于电极表面纳米银粒子的定域表面等离子体吸收使得自由电子受激,受激电子进而转移进入吸附分子空轨道,导致吸附蛋白质的还原.
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| 关 键 词： | 光诱导电子转移 微过氧化物酶 细胞色素c 银粒子 |
| 文章编号： | 0251-0790(2003)03-0419-03 |
| 收稿时间： | 2001-11-16 |
Photo-induced Electron Transfer Between Adsorbed Heme Proteins and Nanosized Silver Particles |
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| ZHENG Jun-Wei ,ZHOU Qun ,DING Hong.Photo-induced Electron Transfer Between Adsorbed Heme Proteins and Nanosized Silver Particles[J].Chemical Research In Chinese Universities,2003,24(3):419-421. |
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| Authors: | ZHENG Jun-Wei ZHOU Qun DING Hong |
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| Institution: | 1. Department of Chemistry, Suzhou University, Suzhou 215006, China;
2. State Key Laboratry of Inorganic Synthesis and Preparation, Jilin University, Changchun 130023, China |
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| Abstract: | Photo-induced electron transfer between the adsorbed heme proteins and nanosized silver particles was studied by surface-enhanced Raman spectroscopy. The results show that the adsorbed microperoxidase and cytochrome c can be reduced under a continuous irradiation of 413 nm laser. The photo-induced reduction of heme proteins is ascribed to the excitation of free electrons in silver metal due to the surface plasmon absorption of the nanosized silver particles. The excited electrons are transferred into the affinity level of the adsorbed molecules, resulting in the reduction of the adsorbed molecules. |
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| Keywords: | Photoinduced electron transfer Microperoxidase Cytochrome c Silver particle |
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