催化学报 ›› 2013, Vol. 34 ›› Issue (6): 1208-1215.DOI: 10.1016/S1872-2067(12)60586-5

• 研究论文 • 上一篇    下一篇

Rapid nonenzymatic monitoring of glucose and fructose using a CuO/multiwalled carbon nanotube nanocomposite-modified glassy carbon electrode

Hajar SHEKARCHIZADEHa, Mahdi KADIVARa, Ali A. ENSAFIb   

  1. a Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;
    b Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
  • 收稿日期:2012-12-30 修回日期:2013-03-15 出版日期:2013-06-07 发布日期:2013-06-09
  • 通讯作者: Ali A. ENSAFI
  • 基金资助:

    The Iranian Nanotechnology Initiative, Research Council of Isfahan University of Technology, and Centre of Excellence in Sensor and Green Chemistry are thanked for supporting this work.

Rapid nonenzymatic monitoring of glucose and fructose using a CuO/multiwalled carbon nanotube nanocomposite-modified glassy carbon electrode

Hajar SHEKARCHIZADEHa, Mahdi KADIVARa, Ali A. ENSAFIb   

  1. a Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;
    b Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
  • Received:2012-12-30 Revised:2013-03-15 Online:2013-06-07 Published:2013-06-09
  • Supported by:

    The Iranian Nanotechnology Initiative, Research Council of Isfahan University of Technology, and Centre of Excellence in Sensor and Green Chemistry are thanked for supporting this work.

摘要:

A nonenzymatic electrochemical sensor for glucose and fructose was fabricated that contained a glassy carbon electrode modified with a copper oxide (CuO)/multiwalled carbon nanotube (MWCNT) nanocomposite. The electrochemical properties of the CuO/MWCNT-modified glassy carbon electrode were investigated. Two distinguishable anodic peaks were observed around 0.30 and 0.44 V corresponding to the oxidation of glucose and fructose, respectively, at the surface of the modified electrode. The detection limits for glucose and fructose were both 0.04 mmol/L. The sensor was used to simultaneously determine the concentrations of glucose and fructose in hydrolyzed sucrose samples, and to measure glucose in blood serum samples, demonstrating its potential as a nonenzymatic carbohydrate sensor.

关键词: Nonenzymatic detection, Copper oxide, Multiwalled carbon nanotube, Modified glassy carbon electrode, Glucose, Fructose, Simultaneous determination

Abstract:

A nonenzymatic electrochemical sensor for glucose and fructose was fabricated that contained a glassy carbon electrode modified with a copper oxide (CuO)/multiwalled carbon nanotube (MWCNT) nanocomposite. The electrochemical properties of the CuO/MWCNT-modified glassy carbon electrode were investigated. Two distinguishable anodic peaks were observed around 0.30 and 0.44 V corresponding to the oxidation of glucose and fructose, respectively, at the surface of the modified electrode. The detection limits for glucose and fructose were both 0.04 mmol/L. The sensor was used to simultaneously determine the concentrations of glucose and fructose in hydrolyzed sucrose samples, and to measure glucose in blood serum samples, demonstrating its potential as a nonenzymatic carbohydrate sensor.

Key words: Nonenzymatic detection, Copper oxide, Multiwalled carbon nanotube, Modified glassy carbon electrode, Glucose, Fructose, Simultaneous determination