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Title of Journal: J Solid State Electrochem

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Abbravation: Journal of Solid State Electrochemistry

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Springer Berlin Heidelberg

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DOI

10.1002/chin.201246119

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1433-0768

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Direct electrochemical analysis of glucose oxidase

Authors: Bojun Wang Shancheng Yan Yi Shi
Publish Date: 2014/08/17
Volume: 19, Issue: 1, Pages: 307-314
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Abstract

Homogeneously distributed selfassembling graphene aerogel/gold nanoparticle GA/GNs hybrid materials with threedimensional 3D interconnected pores were fabricated through a simple hydrothermal route A highly sensitive glucose oxidase GOD sensor is then developed based on the GA/GN hybrid materials The obtained porous structure of the GA/GNs hybrid favored highdensity immobilization of the enzyme and penetration of watersoluble molecules which provided a biocompatible sensing platform for GOD immobilization This GOD biosensor exhibits remarkable sensitivity 25760 μA · mM−1 · cm−2 an approximate linear detection range of glucose concentration 50 μmol · L−1 to 450 μmol · L−1 and a detection limit of 0597 μmol · L−1 These results indicate that the in situ encapsulation of different nanomaterials into a 3D graphene aerogel framework can enable the fabrication of a series of graphenebased 3D porous materials with promising applicationsWe have demonstrated a novel glucose sensor based on porous structure of the GA/GNs hybrid which favored highdensity immobilization of the enzyme penetration of watersoluble molecules and providing a biocompatible sensing platform for GOD immobilizationThis work was financially supported by the National Basic Research Program of China 973 Program 2013CB932903 the National Science Foundations of China No 61205057 China Postdoctoral Science special Foundation 2012 T50488 China Postdoctoral Science Foundation 2011 M500896 Jiangsu Planned Projects for Postdoctoral Research Funds 1102015C Natural Science Foundation of Education Bureau of Jiangsu Province 12KJB180009 the Scientific Research Foundation of Nanjing University of Posts and Telecommunications NY213184 and the open research fund of Key Laboratory of MEMS of Ministry of Education Southeast University

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