Metallocene-mediated amperometric biosensors for one-shot glucose determination
Autor: | A. Kaisheva, P. Atanasov, S. Gamburzev, I. Iliev |
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Rok vydání: | 1992 |
Předmět: |
biology
Chemistry Inorganic chemistry Nickelocene Metals and Alloys Condensed Matter Physics Electrochemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Ferrocene Electrode Materials Chemistry biology.protein Glucose oxidase Electrical and Electronic Engineering Fluorescent glucose biosensor Instrumentation Biosensor Metallocene |
Zdroj: | Sensors and Actuators B: Chemical. 8:59-64 |
ISSN: | 0925-4005 |
DOI: | 10.1016/0925-4005(92)85009-l |
Popis: | Amperometric biosensors for the determination of glucose based on carbon black screen-printed on ceramics are described. The mediators, nickelocene, ferrocene and their derivatives, are used for the conjunction of glucose oxidase-catalysed oxidation of glucose and electrochemical reaction at the applied potential. It is shown that the nickelocene-mediated glucose oxidase electrode exhibits a similar behaviour to that mediated with ferrocene. However, the quasi-redox potential of nickelocene/nickelocenium cation, which is by 0.3 V more negative than that of any of the investigated ferrocene derivatives, significantly lowers the operating potential of the biosensor to ≈0.00 V versus an Ag/AgCl electrode. |
Databáze: | OpenAIRE |
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