A whisker-like carbon composite for the immobilization of laccase and its bioelectrochemistry

作     者：MA GuoXian1,2,ZHONG QingDong2 & LU TianHong3 1Department of Chemical Engineering,Shanghai Institute of Technology,Shanghai 200233,China 2School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China 3Department of Chemistry,Nanjing Normal University,Nanjing 210097,China 

作者机构：Department of Chemical Engineering Shanghai Institute of Technology Shanghai China School of Materials Science and Engineering Shanghai University Shanghai China Department of Chemistry Nanjing Normal University Nanjing China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2010年第53卷第6期

页      面：1332-1336页

核心收录：

学科分类：08[工学] 0703[理学-化学] 082203[工学-发酵工程] 0822[工学-轻工技术与工程] 

主　　题：laccase whisker-like carbon composite direct electrochemical reaction oxygen bioelectrochemistry 

摘      要：A novel mesoporous carbon/whisker-like carbon (MCWC) composite was used for the immobilization of laccase (Lac) and its bioelectrochemical behaviors were *** was confirmed by XPS that Lac was strongly adsorbed on the surface of the MCWC *** cyclic voltammetric results showed that the immobilized Lac underwent a direct quasi-reversible electrochemical *** value of the electron transfer rate constant ks was estimated to be 0.770 s-1,indicating a reasonably fast electron transfer between the immobilized Lac and the underlying *** surface concentration (I-) of Lac was estimated to be 2.730 × 10-12 mol/*** experimental results showed that the immobilized Lac displayed an appreciable electrocatalytic activity to the electrochemical reduction of *** properties could be attributed to the particular structure of loosely packed nanometer-scale carbon whiskers and the existence of a large amount of oxygen-containing *** immo- bilization method and the novel carrier (MCWC) may find new applications in fabricating the biocatalysts for biofuel cells.