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- W2039278970 abstract "Electrochemical detection of dopamine (DA) in the presence of a large excess of ascorbic acid (AA) was investigated with a novel all-carbon nanocomposite film of C60-MWCNTs (C60-functionalized multi-walled carbon nanotubes) using a bare MWCNTs film as control. Although both films can selectively detect DA from AA by separating their oxidation potentials, the C60-MWCNTs film shows special selectivity and good sensitivity for detecting DA. On one hand, the C60-MWCNTs composite film shows a higher activity for DA oxidation with enhanced peak current. On the other hand, the C60-MWCNTs composite film effectively suppresses the oxidation of AA. Remarkably, it is found that the oxidation current of DA is over 2 times higher than that of AA even when the concentration of AA is about 3 to 4 orders of magnitude higher than that of DA. This offers a tremendous advantage for the simple and clean detection of DA free of the interfering AA signal in a real assay. Cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectrometry are used to characterize the C60-MWCNTs composite film. These novel properties are interpreted to arise from the facile electron transfer between C60 and MWCNTs in the C60-MWCNTs nanocomposite film." @default.
- W2039278970 created "2016-06-24" @default.
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- W2039278970 date "2009-12-01" @default.
- W2039278970 modified "2023-10-01" @default.
- W2039278970 title "Highly Selective and Sensitive Detection of Dopamine in the Presence of Excessive Ascorbic Acid Using Electrodes Modified with C60-Functionalized Multiwalled Carbon Nanotube Films" @default.
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- W2039278970 doi "https://doi.org/10.1002/elan.200900282" @default.
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