Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 164, Issue 7, Pages B336-B341Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0601707jes
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Funding
- R. O. C. Ministry of Science and Technology [MOST 105-2221-E-011-013]
- National Taiwan University of Science and Technology
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The development of graphene-based devices requires control over the functionalization and modification of the graphene surface. We studied the modification of the monolayer graphene surface with downstream oxygen plasma treatment to form graphene oxide (GO) for use in glucose biosensors. Amperometric and voltammetric methods were applied to GO for glucose oxidase (GOx) immobilization with a simultaneous reduction of GO to reduce graphene oxide. The fabricated glucose sensor shows a sensitivity of 0.118 mu A mM(-1) cm(-2) and a detection limit of 0.0526 mM of glucose. This method provides fast and simultaneous immobilization of GOx and reduction of GO, and can be used in the fabrication of other electrochemical biosensors. (C) The Author(s) 2017. Published by ECS. All rights reserved.
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