Thick-film glucose biosensor in a three-electrode configuration

被引:0
作者
Galán-Vidal, CA
Muñoz, J
Domínguez, C
García-Raurich, J
Alegret, S [1 ]
机构
[1] Univ Autonoma Barcelona, Dept Quim, Grp Sensors & Biosensors, Bellaterra 08193, Catalonia, Spain
[2] Univ Autonoma Estado Hidalgo, Ctr Invest Quim, Pachuca, Hidalgo, Mexico
[3] Inst Microelect Barcelona, Dept Microsistemes & Tecnol Silici, Bellaterra 08193, Catalonia, Spain
[4] Univ Politecn Catalunya, Dept Engn Quim, Terrassa 08222, Catalonia, Spain
来源
QUIMICA ANALITICA | 1999年 / 18卷
关键词
biosensor; glucose; thick-film; reference electrode; counter electrode;
D O I
暂无
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this work, a glucose biosensor based on a three-electrode (counter, reference and working) planar configuration was fabricated using thick film technology. Glucose oxidase was immobilized in the bulk of a graphite-epoxy composite paste in order to screen-print the working electrode. On the other hand, the intergration on the same substrate of a pseudo-reference electrode was obtained by screen printing a commercial silver-epoxy paste, and subsequent electrochemical chlorinization. Finally, the counter electrode was integrated using the same technique by depositing a graphite-epoxy composite paste, taking into account the counter/working electrode area ratio. Response characteristics and reproducibility of glucose biosensor strips based on this transducer are very promising.
引用
收藏
页码:152 / 154
页数:3
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