Nonenzymatic Glucose Detection by Using a Three‐Dimensionally Ordered, Macroporous Platinum Template
- 9 March 2005
- journal article
- research article
- Published by Wiley in Chemistry – A European Journal
- Vol. 11 (7), 2177-2182
- https://doi.org/10.1002/chem.200400981
Abstract
A three‐dimensionally ordered, macroporous, inverse‐opal platinum film was synthesized electrochemically by the inverted colloidal‐crystal template technique. The inverse‐opal film that contains platinum nanoparticles showed improved electrocatalytic activity toward glucose oxidation with respect to the directly deposited platinum; this improvement is due to the interconnected porous structure and the greatly enhanced effective surface area. In addition, the inverse‐opal Pt‐film electrode responds more sensitively to glucose than to common interfering species of ascorbic acid, uric acid, and p‐acetamidophenol due to their different electrochemical reaction mechanisms. Results showed that the ordered macroporous materials with enhanced selectivity and sensitivity are promising for fabrication of nonenzymatic glucose biosensors.Keywords
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