Long-term response of an integrated carbon paste based glucose biosensor
โ Scribed by J. Kulys; H.E. Hansen
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 946 KB
- Volume
- 303
- Category
- Article
- ISSN
- 0003-2670
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โฆ Synopsis
A biosensor containing integrated reference, auxiliary and two carbon paste based bioelectrodes shows linear calibration graphs for glucose concentrations > 16 mM. The biosensor response is performed on a renovated surface at an electrode potential of 60-80 mV; the capacity of the biosensor is 100 measurements. The long-term response of the biosensor relies on a glucose oxidase stability that depends on the structure of oil, water activity and stabilizer. The response of the biosensors containing silicone oil and stabilized glucose oxidase hardly changes during a period of three months at 35ยฐC and a relative humidity of 75%.
๐ SIMILAR VOLUMES
The modification of carbon paste electrodes by incorporation of the enzyme glucose oxidase (GOx) and a conducting redox osmium his-bipyridyl poly(4-vinylpyridine) polymer (0s-polymer) is described. The resulting enzyme electrodes were operated as amperometric glucose sensors in the presence or absen