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

doi:10.1016/S1872-2067(12)60586-5

Abstract

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

Hajar SHEKARCHIZADEH, Mahdi KADIVAR, Ali A. ENSAFI. Rapid nonenzymatic monitoring of glucose and fructose using a CuO/multiwalled carbon nanotube nanocomposite-modified glassy carbon electrode[J]. Chinese Journal of Catalysis, 2013, 34(6): 1208-1215.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(12)60586-5

https://www.cjcatal.com/EN/Y2013/V34/I6/1208

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