Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (4): 672.

• Articles • Previous Articles     Next Articles

Amperometric Glucose Biosensor Based on Palladium Nanoparticles Combined Aligned Carbon Nanotubes Electrode

XU Ying1, ZHAO Kun2, ZHANG Xiao-Yan1, HE Pin-Gang1*, FANG Yu-Zhi1   

  1. 1. Department of Chemistry, East China Normal University, Shanghai 200062, China;
    2. School of Pharmacy, Shengyang Pharmaceutical University, Shengyang 110016, China
  • Received:2009-10-13 Online:2010-04-10 Published:2010-04-10
  • Contact: HE Pin-Gang. E-mail: pghe@chem.ecnu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20675031)和上海市教育发展基金会晨光计划(批准号: 2008CG30)资助.

Abstract:

Aligned carbon nanotubes(ACNTs) electrode was used as a new support to electrodeposit palladium nanoparticles(Pd nps), the resulting nano-composite showing its outstanding catalytic activity to hydrogen peroxide(H2O2). Herein the Pd(Ⅳ) ions were firstly covalently linked with ACNTs, and then were electrochemical reduced into Pd nanoparticles. After the glucose oxidase modification, such prepared electrode was employed as the enzyme electrode for glucose detection. The results show that these Pd nps have obviously enhanced the response sensitivity of the glucose biosensor in a short response time(<5 s) and at a low oxidation potential(<0.4 V) when detecting the H2O2 liberated in the enzymatic reaction between glucose oxidase and glucose.

Key words: Glucose biosensor; Enzyme electrode; Aligned carbon nanotube; Pd nanoparticle

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