A glucose biosensor based on direct electrochemistry of glucose oxidase immobilized onto platinum nanoparticles modified graphene electrode

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• 作者：AiRong Liu (1) liuairong@tongji.edu.cn
  ShiMing Huang (2)
• 关键词：platinum nanoparticle &#8211 ; glucose oxidase &#8211 ; graphene &#8211 ; biosensor
• 刊名：SCIENCE CHINA Physics, Mechanics & Astronomy
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：55
• 期：7
• 页码：1163-1167
• 全文大小：604.1 KB
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• 作者单位：1. State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092 China2. Department of Physics, Tongji University, Shanghai, 200092 China
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Chinese Library of Science
  Mechanics, Fluids and Thermodynamics
  Physics
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1927

文摘

The platinum nanoparticles were adsorbed on graphene oxide sheets and played an important role in catalytic reduction of graphene oxide with hydrazine, leading to the formation of graphene-Pt nanoparticles. Because of their good electronic properties, biocompatibility and high surface area, graphene-Pt based composites achieved the direct electron transfer of redox enzyme and maintained their bioactivity well. The graphene-Pt nanocomposites were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HR-TEM) and selected area electron diffraction (SAED). The amperometric biosensor fabricated by depositing glucose oxidase over Nafion-solubilized graphene-Pt electrode retained its biocatalytic activity and has offered fast and sensitive glucose quantification.