Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (12): 1325-1329.DOI: 10.3724/SP.J.1077.2010.01325

• Research Paper • Previous Articles     Next Articles

Oxidation Behavior of Glucose on Platinized Diamond-like Carbon Film Electrode

ZHAO Hai-Xin 1,2, LIU Ai-Ping 1,2, QIU Xu 1,2, SHEN Guo-Xian 2   

  1. (1. Department of Physics, Center for Optoelectronics Materials and Devices, Zhejiang Sci-Tech University; Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-tech University), Ministry of Education, Hangzhou 310018, China; 2. Zhejiang Province New Textile Research & Development Emphasised Laboratory, Zhejiang Textile & Garment Science & Technology Co., Ltd., Hangzhou 310009,China)
  • Received:2010-03-22 Revised:2010-06-07 Published:2010-12-20 Online:2010-11-24
  • Supported by:

    National Natural Science Foundation of China (50902123); The Scientific Research Fund of Zhejiang Provincial Education Department (Y200806012); The Open Foundation of Zhejiang Province New Textile Research & Development Emphasised Laboratory (2009FZD003); The Excellent Young Talents Foundation of Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-tech University) (2009QN02)

Abstract: In order to improve the electrochemical activity of conductive diamond-like carbon(DLC) film, platinized DLC (DLC-Pt) film was prepared by magnetron co-sputtering of graphite and platinum targets. The compositions and microstructures of DLC-Pt film were investigated by X-ray photoelectron spectroscope and Raman spectroscope, and the oxidation behaviors of glucose at the DLC-Pt film surface were examined by cyclic voltammetry. The results indicate that DLC-Pt film has more sp2 carbon atoms compared with DLC film, and the redox reaction of K3Fe(CN)6 on the DLC-Pt film electrode is controlled by diffusion. The glucose oxidation starts at about -0.8 V on the DLC-Pt film surface without interference from urea and ascorbic acid. A linear detection range of glucose obtained on the DLC-Pt electrode is identified from 2 mmol/L to 22 mmol/L (covering blood glucose levels in diabetic patients). So the DLC-Pt film has potential application to be a glucose sensor for blood glucose defection.

Key words: magnetron sputtering, platinized diamond-like carbon (DLC-Pt), glucose sensor, catalytic activity

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