| DHP促进[Ru(bpy)_3]~(2+)介导鸟嘌呤的氧化 |
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| 引用本文： | 张宝莲,洪伟,陆宝仪,李红.DHP促进[Ru(bpy)_3]~(2+)介导鸟嘌呤的氧化[J].电化学,2009,15(4):445. |
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| 作者姓名： | 张宝莲 洪伟 陆宝仪 李红 |
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| 作者单位： | 华南师范大学化学与环境学院; |
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| 基金项目： | 广东省教育厅自然科学基金(Z03020); 广州市科技攻关(2004J1-C0091)资助 |
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| 摘 要： | 应用循环伏安法和微分脉冲伏安法研究了ITO电极上双十六烷基磷酸盐(DHP)和多壁碳纳米管(MWNTs)对Ru(bpy)3]2+(bpy=2,2′-联吡啶)介导鸟嘌呤氧化的影响.结果表明,Ru(bpy)3]2+能够介导鸟嘌呤氧化.在0.01至0.15 mmol.L-1DHP浓度范围内,Ru(bpy)3]2+介导鸟嘌呤氧化峰电流随DHP浓度的增大而增大,阳离子表面活性剂HTAC则起抑制作用.讨论了DHP参与Ru(bpy)3]2+介导鸟嘌呤氧化的可能电极过程机理.
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| 关 键 词： | 多吡啶钌(II)配合物 鸟嘌呤 表面活性剂 碳纳米管 氧化 |
| 收稿时间： | 2009-11-28 |
Enhanced [Ru(bpy)_3]~(2+)-mediated Oxidation of Guanine Prompted by DHP |
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| ZHANG Bao-lian,HONG Wei,LU Bao-yi,LI Hong.Enhanced [Ru(bpy)_3]~(2+)-mediated Oxidation of Guanine Prompted by DHP[J].Electrochemistry,2009,15(4):445. |
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| Authors: | ZHANG Bao-lian HONG Wei LU Bao-yi LI Hong |
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| Institution: | ZHANG Bao-lian,HONG Wei,LU Bao-yi,LI Hong*(School of Chemistry , Environment,South China Normal University,Guangzhou 510006,China) |
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| Abstract: | The effects of dihexadecyl phosphate(DHP) and multi-walled carbon nanotubes(MWNTs) on the oxidation of guanine mediated byRu(bpy)3]2+ on the ITO electrode have been investigated by cyclic voltammetry and differential pulse voltammetry.The results showed that Ru(bpy)3]2+ can mediate the oxidation.In the range from 0.01 to 0.15 mmol·L-1,peak currents for guanine oxidation mediated by Ru(bpy)3]2+ increased with the rise of DHP concentrations.On the contrary,cationic surfactant HTAC has the ability to weaken the mediated oxidation of guanine.In addition,the oxidative mechanism of guanine mediated by Ru(bpy)3]2+ with the participation of DHP is discussed. |
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| Keywords: | polypyridyl ruthenium(II) complex guanine surfactant carbon nanotubes oxidation |
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