Amperometric Biosensor for Hydrogen Peroxide Based on Direct Electrocatalysis by Hemoglobin Immobilized on Gold Nanoparticles/1,6-Diaminohexane Modified Glassy Carbon Electrode

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著者

    • Tang Mingyu TANG Mingyu
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Engineering, Southwest University
    • Chen Shihong CHEN Shihong
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Engineering, Southwest University
    • Yuan Ruo [他] YUAN Ruo
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Engineering, Southwest University
    • CHAI Yaqin
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Engineering, Southwest University
    • GAO Fengxian
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Engineering, Southwest University
    • XIE Yi
    • Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Engineering, Southwest University

抄録

A facile strategy of an amperometric biosensor for hydrogen peroxide based on the direct electrocatalysis of hemoglobin (Hb) immobilized on gold nanoparticles (GNPs)/1,6-diaminohexane (DAH) modified glassy carbon electrode (GCE) has been described. A uniform monolayer film of DAH was initially covalently bound on a GCE surface by virtue of the electrooxidation of one amino group of DAH, and another amino group was modified with GNPs and Hb, successively. The fabrication process was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). The proposed biosensor exhibited an effective and fast catalytic response to the reduction of H<sub>2</sub>O<sub>2</sub> with good reproducibility and stability. A linear relationship existed between the catalytic current and the H<sub>2</sub>O<sub>2</sub> concentration in the range of 1.5 × 10<sup>-6</sup> to 2.1 × 10<sup>-3</sup> M with a correlation coefficient of 0.998 (<i>n</i> = 24). The detection limit (<i>S/N</i> = 3) was 8.8 × 10<sup>-7</sup> M.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 24(4), 487-491, 2008-04-10

    The Japan Society for Analytical Chemistry

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各種コード

  • NII論文ID(NAID)
    10021099597
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    9452240
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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