Application of ionic liquid-dsDNA biocomposite film for the direct electrochemistry of myglobin on carbon ionic liquid electrode

被引：7
|
作者：
Zhu, Zhihong [2 ,3 ]
Sun, Zhaolan [1 ]
Wang, Yan [1 ]
Zeng, Yan [2 ,3 ]
Sun, Wei [1 ]
Huang, Xintang [2 ,3 ]
机构：
[1] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
[2] Huazhong Normal Univ, Inst Nano Sci, Wuhan 430079, Peoples R China
[3] Huazhong Normal Univ, Ctr Technol, Wuhan 430079, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2010年 / 650卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Double stranded DNA; Ionic liquid; Carbon ionic liquid electrode; Myglobin; Direct electrochemistry; NITRIC-OXIDE BIOSENSOR; AGAROSE HYDROGEL FILMS; PASTE ELECTRODE; COMPOSITE FILM; DNA FILMS; HEMOGLOBIN; ELECTROCATALYSIS; BIOELECTROCHEMISTRY; NANOPARTICLES; IMMOBILIZATION;
D O I：
10.1016/j.jelechem.2010.09.011
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An ionic liquid (IL) and double-stranded DNA (dsDNA) composite material was used to investigate the direct electron transfer of myglobin (Mb) on carbon ionic liquid electrode (CILE) The presence of the IL-dsDNA biocomposite film on the electrode surface provided great Improvement to the direct electron transfer rate of Mb with the CILE which was due to the synergistic contributions of specific characteristics of dsDNA IL and their interaction The electrochemical parameters of Mb in the IL-dsDNA composite film modified electrode were carefully investigated with the charge transfer coefficient (alpha) and the electron transfer rate constant (k(s)) calculated as 0 42 and 0 84s(-1) respectively The fabricated Mb modified electrode exhibited good electrocatalytic ability to the reduction of trichloroacetic acid and H2O2 which showed the potential applications in the third-generation electrochemical biosensor (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码：31 / 35
页数：5
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