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Reference type: Journal
Authors: Choi SW, Chang HJ, Lee N, Chun HS
Article Title: A Surface Plasmon Resonance Sensor for the Detection of Deoxynivalenol Using a Molecularly Imprinted Polymer.
Publication date: 2011
Journal: Sensors
Volume: 11
Issue: (9)
Page numbers: 8654-8664.
DOI: 10.3390/s110908654

Abstract: The aim of the present work was to investigate the feasibility of applying the molecular imprinting polymer technique to the detection of the mycotoxin deoxynivalenol (DON) using a surface plasmon resonance (SPR) transducer. A molecularly imprinted polypyrrole (MIPPy) film was prepared via electropolymerization of pyrrole onto a bare Au chip in the presence of a template DON molecule. Atomic force microscope SPR analysis showed that the MIPPy film was deposited homogeneously on the Au surface, with a thickness of 5 nm. The MIPPy-SPR sensor exhibited a linear response for the detection of DON in the range of 0.1-100 ng/mL (R2 = 0.988). The selectivity efficiency of the MIPPy film for DON and its acetylated analogs 3-ADON and 15-ADON was 100, 19, and 44%, respectively. The limit of detection for DON with the MIPPy-SPR for a standard solution was estimated at >1 ng/mL. These results suggest that the combination of SPR sensing with a MIPPy film as a synthetic receptor can be used to detect DON.
Template and target information: deoxynivalenol, DON
Author keywords: deoxynivalenol, polypyrrole, molecular imprinting polymer, surface plasmon resonance, synthetic receptor


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