Journal
BIOSENSORS & BIOELECTRONICS
Volume 15, Issue 5-6, Pages 229-239Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/S0956-5663(00)00080-4
Keywords
enzyme; glucose; alkanethiol
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Enzyme electrodes were observed experimentally to have a broad dynamic range, high sensitivity and excellent reproducibility. The theoretically predicted response of the monolayer enzyme electrodes was in good agreement with that observed experimentally over the broad range of experimental conditions tested. The response is limited by the rate of enzyme turnover by a mediating species rather than mass transport. As a consequence of this limitation, the response was very sensitive to the enzyme loading and the concentration of mediator in the sample solution but insensitive to mass transport variables such as solution stirring or the diffusion coefficients of the substrate or cosubstrate. (C) 2000 Elsevier Science S.A. All rights reserved.
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