Direct electrochemistry of hemoglobin on an ionic liquid carbon electrode modified with zinc tungstate nanorods

被引:0
|
作者
Chengxiang Ruan
Zhaolan Sun
Jun Liu
Jin Lou
Weimin Gao
Wei Sun
Yunsheng Xiao
机构
[1] Jiangxi Science and Technology Normal University,Jiangxi Key Laboratory of Surface Engineering
[2] Qingdao University of Science and Technology,College of Chemistry and Molecular Engineering
来源
Microchimica Acta | 2012年 / 177卷
关键词
Carbon ionic liquid electrode; Hemoglobin; 1-Butylpyridinium hexafluorophosphate; ZnWO; nanorods; Trichloroacetic acid;
D O I
暂无
中图分类号
学科分类号
摘要
We have constructed a new electrochemical biosensor by immobilization of hemoglobin (Hb) and ZnWO4 nanorods in a thin film of chitosan (CTS) on the surface of carbon ionic liquid electrode. UV–vis and FT-IR spectra reveal that Hb remains in its native conformation in the film. The modified electrode was characterized by scanning electron microscopy, electrochemical impedance spectroscopy and cyclic voltammetry. A pair of well-defined redox peaks appears which indicates direct electron transfer from the electrode. The presence of CTS also warrants biocompatibility. The electron transfer coefficient and the apparent heterogeneous electron transfer rate constant were calculated to be 0.35 and 0.757 s−1, respectively. The modified electrode displays good electrocatalytic activity for the reduction of trichloroacetic acid with the detection limit of 0.613 mmol L−1 (3σ). The results extend the protein electrochemistry based on the use of ZnWO4 nanorods.
引用
收藏
页码:457 / 463
页数:6
相关论文
共 50 条
  • [1] Direct electrochemistry of hemoglobin on an ionic liquid carbon electrode modified with zinc tungstate nanorods
    Ruan, Chengxiang
    Sun, Zhaolan
    Liu, Jun
    Lou, Jin
    Gao, Weimin
    Sun, Wei
    Xiao, Yunsheng
    [J]. MICROCHIMICA ACTA, 2012, 177 (3-4) : 457 - 463
  • [2] Direct electrochemistry and electrocatalysis of hemoglobin on carbon ionic liquid electrode
    Huang, Ke-Jing
    Sun, Jun-Yong
    Niu, De-Jun
    Xie, Wan-Zhen
    Wang, Wei
    [J]. COLLOIDS AND SURFACES B-BIOINTERFACES, 2010, 78 (01) : 69 - 74
  • [3] Application of NiMoO4 Nanorods for the Direct Electrochemistry and Electrocatalysis of Hemoglobin with Carbon Ionic Liquid Electrode
    Hu, Song
    Cao, Lili
    Sun, Zhaolan
    Xiang, Jun
    Lu, Ming
    Sun, Wei
    [J]. ELECTROANALYSIS, 2012, 24 (02) : 278 - 285
  • [4] Direct Electrochemistry and Electrocatalysis of Myoglobin with CoMoO4 Nanorods Modified Carbon Ionic Liquid Electrode
    Zhao, Zengying
    Cao, Lili
    Hu, Anhui
    Zhang, Weili
    Ju, Xiaomei
    Zhang, Yuanyuan
    Sun, Wei
    [J]. BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2013, 34 (02): : 475 - 481
  • [5] Application of N-doped graphene modified carbon ionic liquid electrode for direct electrochemistry of hemoglobin
    Sun, Wei
    Dong, Lifeng
    Deng, Ying
    Yu, Jianhua
    Wang, Wencheng
    Zhu, Qianqian
    [J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2014, 39 : 86 - 91
  • [6] Direct Electrochemistry of Hemoglobin Immobilized in Polyvinylalcohol and Clay Composite Film Modified Carbon Ionic Liquid Electrode
    Hui, Ni
    Gao, Rui-fang
    Li, Xiao-qing
    Sun, Wei
    Jiao, Kui
    [J]. JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2009, 20 (02) : 252 - 258
  • [7] Direct electrochemistry and electrocatalysis of hemoglobin on three-dimensional graphene modified carbon ionic liquid electrode
    Sun, Wei
    Hou, Fei
    Gong, Shixing
    Han, Lin
    Wang, Wencheng
    Shi, Fan
    Xi, Jingwen
    Wang, Xiuli
    Li, Guangjiu
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2015, 219 : 331 - 337
  • [8] Direct electrochemistry of hemoglobin entrapped in dextran film on carbon ionic liquid electrode
    Xiaoqing Li
    Yan Wang
    Xiaoying Sun
    Tianrong Zhan
    Wei Sun
    [J]. Journal of Chemical Sciences, 2010, 122 : 271 - 278
  • [9] Direct electrochemistry of hemoglobin entrapped in dextran film on carbon ionic liquid electrode
    Li, Xiaoqing
    Wang, Yan
    Sun, Xiaoying
    Zhan, Tianrong
    Sun, Wei
    [J]. JOURNAL OF CHEMICAL SCIENCES, 2010, 122 (02) : 271 - 278
  • [10] Direct electrochemistry and electrocatalysis of hemoglobin with carbon nanotube-ionic liquid-chitosan composite materials modified carbon ionic liquid electrode
    Zhu, Zhihong
    Qu, Lining
    Li, Xia
    Zeng, Yan
    Sun, Wei
    Huang, Xintang
    [J]. ELECTROCHIMICA ACTA, 2010, 55 (20) : 5959 - 5965