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Amperometric glucose sensors based on ferrocene-modified poly(ethylene oxide) and glucose oxidase

✍ Scribed by P.D. Hale; H.L. Lan; L.I. Boguslavsky; H.I. Karan; Y. Okamoto; T.A. Skotheim

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 704 KB
Volume: 251
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(91)87124-p

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✦ Synopsis

Electrical communication between the flavin adenine dinucleotide redox centers of glucose oxidase and a conventional electrode was achieved using two electron-transfer relay systems based on ferrocene-modified poly(ethylene oxide). The results from cyclic volt-etry and stationary potential experiments show that carbon paste electrodes modified with these redox polymers and glucose oxidase respond rapidly to addition of glucose, with larger steady-state response currents than those measured in previous studies of glucose sensors based on ferrocene-modified siloxane polymers. The results also indicate that the mediating ability of the polymers is dependent on the density of bound ferrocene moieties along the polymer chain.

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