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Reference type: Journal
Authors: Yang GM, Zhao FQ, Zeng BZ
Article Title: Electrochemical determination of cefotaxime based on a three-dimensional molecularly imprinted film sensor.
Publication date: 2014
Journal: Biosensors and Bioelectronics
Volume: 53
Page numbers: 447-452.
DOI: 10.1016/j.bios.2013.10.029
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0956566313007318

Abstract: A novel electrochemical sensor is presented for the determination of cefotaxime (CEF), which is constructed by molecularly imprinted polymer (MIP), gold networks@IL (IL, 1-butyl-3-methylimidazolium tetrafluoroborate, [BMIM][BF4]) (GNWs@IL), porous platinum nanoparticles (PPNPs) and carboxyl graphene (COOH-r-GO). The GNWs@IL is prepared by directly reducing HAuCl4 with sodium citrate in [BMIM][BF4] aqueous solution. The PPNPs are well embedded in GNWs@IL due to the adhesion of IL to form GNWs@IL-PPNPs suspension, which is coated on a COOH-r-GO modified glassy carbon electrode to construct a porous three-dimensional networks modified electrode. Then, MIP is prepared by cyclic voltammetry at the modified electrode, using CEF as template and o-phenylenediamine as monomer. The factors concerning this assay strategy are carefully investigated. Under the optimal conditions, the electrochemical sensor offers an excellent response for CEF, the linear response range is 3.9 x 10-9~8.9 x 10-6 mol L-1 and the detection limit is 1.0 x 10-10 mol L-1. The electrochemical sensor has been applied to the determination of CEF in real samples with satisfactory results
Template and target information: cefotaxime, CEF
Author keywords: Gold networks, Ionic liquid, Porous platinum nanoparticles, molecular imprinted polymers, cefotaxime, Electrochemical sensor


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