| DNA/单壁碳纳米管/聚多巴胺修饰电极的制备及其分析应用 |
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| 引用本文： | 张婷,冯莅均,张修华,宋功武.DNA/单壁碳纳米管/聚多巴胺修饰电极的制备及其分析应用[J].化学与生物工程,2012,29(8):73-75,83. |
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| 作者姓名： | 张婷 冯莅均 张修华 宋功武 |
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| 作者单位： | 1. 武汉软件工程职业技术学院,湖北武汉,430205
2. 湖北大学化学化工学院,湖北武汉,430062 |
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| 摘 要： | 在裸玻碳电极上制备得到了DNA/单壁碳纳米管/聚多巴胺复合膜修饰电极(DNA/SWNTs/PDA/GCE)。研究了呋喃唑酮在该修饰电极上的电化学行为及其与DNA的相互作用机理。结果表明:呋喃唑酮与DNA通过静电结合形成非导电复合物,该复合物阻碍了电极界面电子传输;该修饰电极对呋喃唑酮氧化还原具有明显的电催化作用,可用于呋喃唑酮的定量测定,具有快速、简单和灵敏等优点。
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| 关 键 词： | DNA 呋喃唑酮 单壁碳纳米管 聚多巴胺 |
Fabrication and Analytical Application of DNA/SWNTs/Poly Dopamine Composite Film Modified Electrode |
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| ZHANG Ting
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FENG Li-jun
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ZHANG Xiu-hua
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SONG Gong-wu.Fabrication and Analytical Application of DNA/SWNTs/Poly Dopamine Composite Film Modified Electrode[J].Chemistry & Bioengineering,2012,29(8):73-75,83. |
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| Authors: | ZHANG Ting FENG Li-jun ZHANG Xiu-hua SONG Gong-wu |
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| Affiliation: | 1.Wuhan Vocational College of Software and Engineering,Wuhan 430205,China; 2.College of Chemistry and Chemical Engineering,Hubei University,Wuhan 430062,China) |
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| Abstract: | A DNA/SWNTs/poly dopamine composite film modified electrode(DNA/SWNTs/PDA/GCE) was fabricated by electropolymerization.Electrochemical properties of furazolidone and its interaction with DNA at DNA/SWNTs/PDA/GCE were explored by cyclic voltammetry(CV) and differential pulse voltammetry(DPV).The results showed that non-conductive composite was formed by electrostatic binding of DNA and furazolidone,and the composite obstructed the electrode interface electronic transmission.In addition,the modified electrode provided significant catalytic effect to oxidation-reduction of furazolidone,and could be used to the quantitative determination of furazolidone with the advantages of rapid,simple and sensitive. |
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| Keywords: | DNA furazolidone SWNTs poly dopamine(PDA) |
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