A Novel Hydrogen Peroxide Amperometric Sensor based on Thionin Incorporated onto a Mo6S9-xIx Nanowire Modified Glassy Carbon Electrode

被引：16
|
作者：
Lin, Hong [1 ,2 ]
Cheng, Huiming [1 ]
Miao, Xiaopei [1 ,3 ]
Papakonstantinou, Pagona [4 ]
Mihailovic, Dragan [5 ]
Li, Meixian [1 ]
机构：
[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
[2] Yuxi Normal Univ, Dept Chem, Coll Resources & Environm, Yuxi 653100, Peoples R China
[3] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
[4] Univ Ulster, Nanotechnol & Integrated Bioengn Ctr, Newtownabbey BT37 0QB, Antrim, North Ireland
[5] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia
来源：
ELECTROANALYSIS | 2009年 / 21卷 / 23期
基金：
中国国家自然科学基金;
关键词：
Hydrogen peroxide; MoSI nanowires; Thionin; Electrocatalysis; Amperometric sensors; Sensors; HORSERADISH-PEROXIDASE; NANOTUBES; H2O2; NANOCOMPOSITE; NANOPARTICLES; SOLUBILITY; SILANE; FILM;
D O I：
10.1002/elan.200900162
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A simple and enzymeless amperometric sensor for the detection of H2O2 based on a new kind of nanomaterial Mo-6 S9-xIx (MoSI) nanowires (NWs) was developed. The construction of the sensing platform was based on strong electrostatic interactions between negatively charged MoSI NWs and positively charged thionin molecules. MoSI NWs act as not only a good substrate for the immobilization of redox mediator thionin, but also a promoter for electrocatalysis of H2O2. The fabricated sensor showed a wide linear range over the concentration of H2O2 from 5 mu M to 2.8 mM with a measurable lowest detection of 0.8 mu M; furthermore, it exhibited good stability and reproducibility.
引用
收藏
页码：2602 / 2606
页数：5
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