MIPdatabase
Authors: Li YC, Song H, Zhang L, Zuo P, Ye BC, Yao J, Chen W
Article Title: Supportless electrochemical sensor based on molecularly imprinted polymer modified nanoporous microrod for determination of dopamine at trace level.
Publication date: 2016
Journal: Biosensors and Bioelectronics
Volume: 78
Page numbers: 308-314.
DOI: 10.1016/j.bios.2015.11.063
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0956566315306163
Abstract: In this work, we developed a novel freestanding metallic microrod as working electrode for highly sensitive and selective electrochemical detection of trace dopamine (DA). The electrode was facilely fabricated via first dealloying smooth Au-Ag alloy microrod (AMR) into nanoporous Au-Ag alloy microrod (NPAMR) and further modifying with electro-polymerized molecularly imprinted polymer (MIP). Influencing factors during electro-polymerization process including pH value and molar ratio of monomer to template molecule were optimized. Under the optimal conditions, a linear range from 2 x 10-13 to 2 x 10-8 M for measuring DA was obtained with an ultralow detection limit of 7.63 x 10-14 M (S/N=3). In addition, the MIP-modified electrode (MIP/NPAMR) was successfully employed to test DA in serum and brain samples
Template and target information: dopamine, DA
Author keywords: molecularly imprinted polymer, Nanoporous alloy microrod, Electrochemical sensor, Trace measurement, dopamine
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