Reference: Guo K, et al. (2011) Bio-electrocatalysis of NADH and ethanol based on graphene sheets modified electrodes. Talanta 85(2):1174-9

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Abstract


Characterization and application of graphene sheets modified glassy carbon electrodes (graphene/GC) have been presented for the electrochemical bio-sensing. A probe molecule, potassium ferricyanide is employed to study the electrochemical response at the graphene/GC electrode, which shows better electron transfer than graphite modified (graphite/GC) and bare glassy carbon (GC) electrodes. Based on the highly enhanced electrochemical activity of NADH, alcohol dehydrogenase (ADH) is immobilized on the graphene modified electrode and displays a more desirable analytical performance in the detection of ethanol, compared with graphite/GC or GC based bio-electrodes. It also exhibits good performance of ethanol detection in the real samples. From the results of electrochemical investigation, graphene sheets with a favorable electrochemical activity could be an advanced carbon electrode materials for the design of electrochemical sensors and biosensors.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Guo K, Qian K, Zhang S, Kong J, Yu C, Liu B
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