Graphene Modified Electrode for the Direct Electron Transfer of Bilirubin Oxidase
Graphene Modified Electrode for the Direct Electron Transfer of Bilirubin Oxidase
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DOI：
10.5796/electrochemistry.83.332
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发表时间：
2015-05
期刊：
影响因子：
2.5
通讯作者：
Shunsuke Shiba;Junji Inoue;Dai Kato;K. Yoshioka;O. Niwa
中科院分区：
文献类型：
--
作者：
Shunsuke Shiba;Junji Inoue;Dai Kato;K. Yoshioka;O. Niwa
通过浇铸不同浓度的石墨烯分散溶液，制备了石墨烯修饰玻碳（Gr/GC）电极，以增强胆红素氧化酶（BOD）的直接电子转移（DET）。在浓度为2μgμL−1时，BOD修饰的Gr/GC电极的还原电流大幅增加，为BOD修饰的GC电极（未用石墨烯修饰）的74倍。此外，石墨烯改性的电容增加远小于其他碳材料，包括炭黑和石墨粉。这些结果表明，石墨烯纳米结构适合于实现BOD的有效DET。©日本电化学学会版权所有。
We fabricated graphene modified glassy carbon (Gr/GC) electrodes to enhance the direct electron transfer (DET) of bilirubin oxidase (BOD) by casting graphene-dispersed solutions with different concentrations. With a concentration of 2μgμL−1, a large increase was observed in the reduction current at the BOD-modified Gr/GC electrode, and the value was 74 times that of a BOD-modified GC electrode (unmodified with graphene). Moreover, with graphene modification the capacitance increase was much less than with other carbon materials including carbon black and graphite powder. These results demonstrate that a graphene nanostructure is suitable for achieving the efficient DET of BOD. © The Electrochemical Society of Japan, All rights reserved.