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Harley, Claire C., Rooney, A. Denise and Breslin, Carmel B. (2010) The selective detection of dopamine at a polypyrrole film doped with sulfonated β�-cyclodextrins. Sensors and Actuators B: Chemical, 150 (2). pp. 498-504. ISSN 0925-4005
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Abstract
A highly selective dopamine sensor was fabricated by doping polypyrrole with a sulfonated β�-cyclodextrin. This composite material enabled the selective sensing of dopamine in the presence of a
large excess of ascorbic acid and prevented the regeneration of dopamine through the homogeneous catalytic
reaction of the ascorbate anion with the dopamine-o-quinone. A single redox wave, corresponding
to the oxidation of dopamine, was observed in dopamine/ascorbate mixtures, giving a truly selective
dopamine sensor. The limit of detection was measured as 3.2×10−6M for dopamine
| Item Type: | Article |
|---|---|
| Additional Information: | The definitive version of this article is available at Sensors and Actuators B: Chemical (2010) Vol.150 No.2 pp.498-504. doi:10.1016/j.snb.2010.09.012 |
| Keywords: | Dopamine sensor; Polypyrrole; �β-Cyclodextrin; Ascorbic acid; Selective detection; |
| Academic Unit: | Faculty of Science and Engineering > Chemistry |
| Item ID: | 3828 |
| Depositing User: | Dr. Carmel Breslin |
| Date Deposited: | 22 Aug 2012 15:41 |
| Journal or Publication Title: | Sensors and Actuators B: Chemical |
| Publisher: | Elsevier |
| Refereed: | Yes |
| Related URLs: | |
| Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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