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Reference type: Journal
Authors: Wang HW, Yao S, Liu YQ, Wei SL, Su JW, Hu GX
Article Title: Molecularly imprinted electrochemical sensor based on Au nanoparticles in carboxylated multi-walled carbon nanotubes for sensitive determination of olaquindox in food and feedstuffs.
Publication date: 2017
Journal: Biosensors and Bioelectronics
Volume: 87
Page numbers: 417-421.
DOI: 10.1016/j.bios.2016.08.092
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0956566316308466

Abstract: A novel molecularly imprinted electrochemical sensor (MIECS) was proposed to determine olaquindox (OLA) using gold nanoparticles in molecularly imprinted polymer (AuNPs@MIP) and carboxylated multi-walled carbon nanotubes (cMWCNTs). Glassy carbon electrode (GCE) was modified with cMWCNTs (cMWCNTs/GCE), and AuNPs/cMWCNT/GCE was obtained by electrodeposition on cMWCNTs/GCE using chronoamperometry in HAuCl4. Then, the obtained MIP/AuNPs/cMWCNTs/GCE was electropolymerized using OLA as template and o-PD as monomer to determine OLA. Important experimental parameters, namely, scan cycles, mole ratio of template molecules to functional monomers, pH value, and incubation time were optimized. The novel MIP sensor can offer a 2.7 nM of detection limit for OLA. In addition, a series of food and feedstuffs were analyzed to demonstrate the feasibility of MIECS
Template and target information: olaquindox, OLA
Author keywords: Olaquindox, Carboxylated multi-walled carbon nanotube, Au nanoparticle, Molecularly imprinted electrochemical sensor, Electrochemical determination


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