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Electrochemical Functionalization of InP Porous Nanostructures with a GOD Membrane for Amperometric Glucose Sensors

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Title: Electrochemical Functionalization of InP Porous Nanostructures with a GOD Membrane for Amperometric Glucose Sensors
Authors: Sato, Taketomo Browse this author →KAKEN DB
Mizohata, Akinori Browse this author
Hashizume, Tamotsu Browse this author
Keywords: biochemistry
bioelectric phenomena
biomembranes
biosensors
electrochemistry
electrodes
III-V semiconductors
indium compounds
molecular biophysics
nanostructured materials
organic compounds
porous semiconductors
Issue Date: 2010
Publisher: Electrochemical Society
Journal Title: Journal of The Electrochemical Society
Volume: 157
Issue: 2
Start Page: H165
End Page: H169
Publisher DOI: 10.1149/1.3264634
Abstract: The electrochemical functionalization of n-type InP porous nanostructures and their feasibility for biochemical sensor applications were investigated. The porous structures have extremely large surface areas, i.e., over 10 m2/cm3, and superior electrical properties with conductive semiconductor substrates. As a first attempt at electrochemical functionalization, we successfully deposited a glucose oxidase (GOD) membrane onto an InP surface under an applied anodic bias of 1.2 V. With the addition of glucose, the response currents on the porous electrodes increased compared to those on planar InP electrodes due to their enlarged surface area. The sensitivity curves of the porous electrodes we used showed good linearity between the response currents and concentrations in a range from 0 to 5 mM.The electrochemical functionalization of n-type InP porous nanostructures and their feasibility for biochemical sensor applications were investigated. The porous structures have extremely large surface areas, i.e., over 10 m2/cm3, and superior electrical properties with conductive semiconductor substrates. As a first attempt at electrochemical functionalization, we successfully deposited a glucose oxidase (GOD) membrane onto an InP surface under an applied anodic bias of 1.2 V. With the addition of glucose, the response currents on the porous electrodes increased compared to those on planar InP electrodes due to their enlarged surface area. The sensitivity curves of the porous electrodes we used showed good linearity between the response currents and concentrations in a range from 0 to 5 mM.
Rights: © The Electrochemical Society, Inc. 2010. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in J. Electrochem. Soc., Volume 157, Issue 2, pp. H165-H169, 2010.
Type: article
URI: http://hdl.handle.net/2115/42543
Appears in Collections:量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤 威友

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