The selective detection of dopamine at a polypyrrole film doped with sulfonated β-cyclodextrins
Harley, Claire C. and 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 AbstractA 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 | 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 |
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| Keywords: | Dopamine sensor; Polypyrrole;
β-Cyclodextrin; Ascorbic acid; Selective detection; |
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| Subjects: | Science & Engineering > Chemistry |
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| ID Code: | 3828 |
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| Deposited By: | Dr. Carmel Breslin |
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| Deposited On: | 22 Aug 2012 16:41 |
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| Journal or Publication Title: | Sensors and Actuators B: Chemical |
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| Publisher: | Elsevier |
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| Refereed: | Yes |
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| URL: | http://www.journals.elsevier.com/sensors-and-actuators-b-chemical/ |
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