Electrochemical Behavior of Levodopa at Multi-Wall Carbon Nanotubes-Quantum Dots Modified Glassy Carbon Electrodes

被引：0
|
作者：
Yi Tu
Qiao Xu
Qiu-Ju Zou
Zhao-Hui Yin
Yuan-Yuan Sun
Yuan-Di Zhao
机构：
[1] College of Life Science and Technology,Wuhan National Laboratory for Optoelectronics, Key Laboratory of Biomedical Photonics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory
[2] Huazhong University of Science and Technology,undefined
来源：
Analytical Sciences | 2007年 / 23卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A multi-wall carbon nanotubes (MWNTs)-quantum dots (QDs) composite-modified glassy carbon electrode (GCE) was prepared. The complex was characterized by transmission electron microscopy (TEM). The electrochemical behavior of levodopa at MWNTs and QDs-modified GCEs (MWNTs-QDs/GCE) was studied by cyclic voltammetry (CV) and chronocoulometry (CC). It was found that its electrochemical behavior was a two-charge-two-proton process. The modified electrode had high electrocatalytic activity for levodopa with a standard heterogeneous rate constant of 0.595 cm s–1, which was greatly increased compared with the values for bare GCE and individual MWNTs modified GCE. The better electrocatalytic activity for levodopa at MWNTs-QDs/GCE may due to a synergistic effect between MWNTs and QDs. This result provides a novel way to promote research on biomicromolecules at nano-dimensions.
引用
收藏
页码：1321 / 1324
页数：3
相关论文
共 50 条
  • [1] Electrochemical behavior of levodopa at multi-wall carbon nanotubes-quantum dots modified glassy carbon electrodes
    Tu, Yi
    Xu, Qiao
    Zou, Qiu-Ju
    Yin, Zhao-Hui
    Sun, Yuan-Yuan
    Zhao, Yuan-Di
    ANALYTICAL SCIENCES, 2007, 23 (11) : 1321 - 1324
  • [2] Study on electrochemical behavior of Tyrosine at multi-wall carbon nanotubes modified glassy carbon electrode
    Shao, Chen
    Wei, Yingliang
    Jiang, Ling
    JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS, 2008, 11 (03) : 175 - 179
  • [3] Electrochemical oxidation of theophylline at multi-wall carbon nanotube modified glassy carbon electrodes
    Zhu, YH
    Zhang, ZL
    Pang, DW
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 581 (02) : 303 - 309
  • [4] Electrochemical behaviours of scutellarin at multi-wall carbon nanotubes modified glassy carbon electrode
    Cai, Zhuo
    Yue, Weichao
    Gan, Jingni
    Peng, Yue
    He, Xiaoliang
    PROGRESS IN MATERIALS AND PROCESSES, PTS 1-3, 2013, 602-604 : 239 - 242
  • [5] Electrochemical Behaviours of Daidzein at Multi-Wall Carbon Nanotubes Modified Glassy Carbon Electrode
    Cai, Z.
    Gan, J. N.
    Lu, D. F.
    Zhang, X.
    ASIAN JOURNAL OF CHEMISTRY, 2012, 24 (11) : 4986 - 4990
  • [6] Electrochemical Behavior and Determination of four drugs using Multi-Wall Carbon Nanotubes Modified Glassy Carbon Electrode
    Zhao, Xia
    Zhang, Yan
    Gao, Dingfeng
    Xiong, Huabin
    Gao, Yuntao
    Li, Simin
    Li, Xiaofen
    Yang, Zhi
    Liu, Manhong
    Dai, Jianhui
    Zhang, Donghua
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2019, 14 (01): : 506 - 515
  • [7] Electrochemical Sensor for Determination of Fenitrothion at Multi-wall Carbon Nanotubes Modified Glassy Carbon Electrode
    Tefera, M.
    Tessema, M.
    Admassie, S.
    Mehretie, S.
    ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH, 2015, 2 (02): : 139 - 150
  • [8] Voltammetric behavior and determination of phenylephrine at a glassy carbon electrode modified with multi-wall carbon nanotubes
    Zhu, Yuan-hai
    Zhang, Zhi-ling
    Zhao, Wei
    Pang, Dai-wen
    SENSORS AND ACTUATORS B-CHEMICAL, 2006, 119 (01) : 308 - 314
  • [9] Determination of butylparaben by adsorptive stripping voltammetry at glassy carbon electrodes modified with multi-wall carbon nanotubes
    Angeles Lorenzo, Maria
    Sanchez Arribas, Alberto
    Moreno, Monica
    Bermejo, Esperanza
    Chicharro, Manuel
    Zapardiel, Antonio
    MICROCHEMICAL JOURNAL, 2013, 110 : 510 - 516
  • [10] A Comparison of the Electrochemical and Electroanalytical Behavior of Ascorbic Acid, Dopamine and Uric Acid at Bare, Activated and Multi-Wall Carbon Nanotubes Modified Glassy Carbon Electrodes
    Zare, H. R.
    Nasirizadeh, N.
    JOURNAL OF THE IRANIAN CHEMICAL SOCIETY, 2011, 8 : S55 - S66
12345