Preparation of Magnetic Ordered Mesoporous Carbon Composite and Its Application in Direct Electrochemistry of Horseradish Peroxidase |
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| Authors: | Jing Zheng Jing‐Li Xu Tang‐Bo He Jin Jia‐Ling Wang Wen‐Qian Zhang Yu‐Xiao Hu Pin‐Gang He Yu‐Zhi Fang |
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| Institution: | 1. Department of Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, P.?R. China;2. Department of Chemistry, East China Normal University, Shanghai 200062, P.?R. China |
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| Abstract: | A novel magnetic ordered mesoporous carbon composite was prepared. Electrochemical measurements showed that the ordered mesoporous carbon composite provided an excellent matrix for the co‐adsorption of horseradish peroxidase (HRP). HRP could be separated and collected by the application of a magnetic field and its direct electron‐transfer could be achieved in the solution, not on the electrode thereby preventing the degradation of the enzyme. The cyclic voltammetric experimental results of HRP indicated that HRP displayed a pair of stable peaks with a formal potential of ?0.306 V in PBS. The resulting biosensor exhibited fast amperometric response to hydrogen peroxide. |
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| Keywords: | Ordered mesoporous carbon composite Direct electrochemistry Horseradish peroxidase |
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