Reduced working electrode based on fullerene C60 nanotubes@DNA: Characterization and application
文献类型： 外文期刊
作者： Zhang, Xuzhi 2 ; Qu, Yongtao 1 ; Piao, Guangzhe 1 ; Zhao, Jian 1 ; Jiao, Kui 2 ;
作者机构： 1.Qingdao Univ Sci &Technol, Sch Polymer Sci & Engn, Key Lab Rubber Plast, Minist Educ, Qingdao 266042, Peoples R China
2.Qingdao Univ Sci & Technol, Key Lab Ecochem Engn, Minist Educ, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China
关键词： Fullerene C(60) nanotubes@DNA;Modified electrode;Reduced working electrode;Ascorbic acid;Dopamine
期刊名称：MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS （ 影响因子：4.051； 五年影响因子：4.316 ）
ISSN： 0921-5107
年卷期： 2010 年 175 卷 2 期
页码：
收录情况： SCI
摘要： Fullerene C(60) nanotubes (FNTs) were functionalized with sequence-specific single-stranded DNA to form a kind of complexes (FNT@DNA), which could be brought efficiently into aqueous solution. The dispersed FNT@DNA could form a layer of stable film on the surface of glassy carbon electrode (GCE). In the Britton-Robinson buffer solution of pH >= 7.0, the FNT@DNA modified on the GCE presented an irreversible two-step six-electron transfer reduction reaction. The reduced modified electrode had a rather wide electrochemical window and could be used as a functionalized working electrode, which showed a good enrichment capability towards the positively charged molecules. The selective detection of dopamine in the presence of a high amount of ascorbic acid could be realized at the reduced FNT@DNA-modified GCE in neutral buffer solution. (C) 2010 Elsevier B.V. All rights reserved.
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