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Reference type: Journal
Authors: Teng Y, Liu F, Kan XW
Article Title: Voltammetric dopamine sensor based on three-dimensional electrosynthesized molecularly imprinted polymers and polypyrrole nanowires.
Publication date: 2017
Journal: Microchimica Acta
Volume: 184
Issue: (8)
Page numbers: 2515-2522.
DOI: 10.1007/s00604-017-2243-y

Abstract: Three-dimensional structures comprising polypyrrole nanowires (PPyNWs) and molecularly imprinted polymer (MIP) were prepared by electropolymerization on the surfaces of a glassy carbon electrode (GCE). The modified GCE possesses both large surface area and good electrocatalytic activity for oxidizing dopamine (DA), and this leads to high sensitivity. The electropolymerized MIP has a large number of accessible surface imprints, and this makes the GCE more selective. Under optimal conditions and at a working voltage of typically 0.23 V (vs. SCE), the calibration plot is linear in the 50 nM to 100 μM DA concentration range, and the limit of detection is 33 nM. The sensor has been successfully applied to the analysis of DA in injections
Template and target information: dopamine, DA
Author keywords: Electrochemical sensor, Electrocatalysis, differential pulse voltammetry, Recognition, Sensitive detection


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