Flexible glucose sensor with a film-type oxygen electrode by microfabrication techniques

被引:0
作者
Mitsubayashi, K [1 ]
Iguchi, S [1 ]
Endo, T [1 ]
Tanimoto, S [1 ]
Murotomi, D [1 ]
机构
[1] Tokai Univ, Dept Human & Informat Sci, Hiratsuka, Kanagawa 2591292, Japan
来源
BOSTON TRANSDUCERS'03: DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2 | 2003年
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The glucose sensor (width: 3mm) was constructed by immobilizing glucose oxidase (GOD) with glutaraldehyde solution onto the sensitive area of the film-type oxygen electrode. The oxygen electrode was fabricated by sealing KCl electrolyte solution in a reaction cell with metal-weldable film and gas-permeable membrane which was coated with Pt working electrode and Ag/AgCl counter/reference electrode by microfabrication techniques such as sputtering, photolithography process, etc. The sensor behavior was evaluated using standard glucose solutions in a batch measurement system with a computer-controlled potentiostat at a reduction potential of -700 mV vs. Ag/AgCl. The sensor device has thinner and flexible structure. The sensor was possible to be used for measuring glucose from 0.02 to 0.98 mmol/l (coefficient of correlation: 0.999), including the reported concentration of tear glucose in normal (0.14 mmol/l).
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页码:1201 / 1204
页数:4
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