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Reference type: Conference Proceeding
Authors: Zhang FF, Wang ZH, Xia JF, Xia YZ, Cai F, Li YH
Publication date: 2012
Article title: Preparation of Molecularly Imprinted Polypyrrole and Carbon Nanotubes Film Modified Electrode for Dopamine Recognition.
Page numbers: 105-108
DOI: 10.4028/www.scientific.net/AMR.578.105 Alternative URL: http://www.scientific.net/AMR.578.105

Proceedings title: Advanced Materials Research
Editors: Zhang H, Jin D, Zhao XJ
Publisher: Trans Tech Publications
City: Switzerland
Volume number: 578
Conference information: Advanced Research on Energy Materials and Material Application

Abstract: A novel film of overoxidized polypyrrole and carboxylic multi-walled carbon nanotubes (c-MWNTs) was fabricated with molecular imprinted technique for dopamine by a direct and facile electropolymerization method. The resulting modified electrode surface was characterized with electrochemical impedance spectroscopy and Fourier transform infrared spectroscopy. The results demonstrated that the modified electrode not only possessed a good sensitivity but also exhibited a high selectivity toward DA which making anodic potential difference of DA and AA is 318 mV in DPV. Under the optimum conditions, the linear range of the dopamine biosensor ranges from 5.0 x 10-8 to 6.0 x 10-6 mol/L with a detection limit of 5.0 x 10-9 mol/L
Template and target information: dopamine, DA
Author keywords: carbon nanotubes (CNT), dopamine, Molecularly imprinted film, overoxidized polypyrrole

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