Amperometric Glucose Biosensor Based on Mediated Electron Transfer between Immobilized Glucose Oxidase and Plasmapolymerized Thin Film of Dimethylaminomethylferrocene on Sputtered Gold Electrode
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- KASE Yoshihiro
- Department of Electronic Engineering, Shibaura Institute of Technology
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- MUGURUMA Hitoshi
- Department of Electronic Engineering, Shibaura Institute of Technology
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We propose an electron transfer-mediated amperometric enzyme biosensor based on plasma-polymerized thin film of dimethylaminomethylferrocene (DMAMF) on a sputtered gold electrode. The DMAMF plasma-polymerized film is deposited directly onto the surface of the electrode under dry conditions. The resulting thin film not only has redox sites but also is extremely thin (∼20 nm), adheres well onto the substrate (electrode), has a flat surface and a highly-crosslinked network structure, and is hydrophilic in nature. Glucose oxidase is densely immobilized onto the surface of DMAMF plasma-polymerized film on the gold electrode. From the electrochemical measurement, the biosensor can cover the wide range of glucose concentration (1.3 - 81 mM) at +350 mV of applied potential. The current response of the glucose biosensor was decreased by less than 5% in an aerobic solution as compared to that in an anaerobic solution. These show that the DMAMF plasma-polymerized films play a role as the electron transfer mediators between the reaction center of enzyme and the electrode.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 20 (8), 1143-1146, 2004
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204258322944
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- NII論文ID
- 10013450745
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD2cXmvFOiu7g%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 7037794
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- PubMed
- 15352501
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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