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Reference type: Journal
Authors: Zeni L, Pesavento M, Marchetti S, Cennamo N
Article Title: Slab plasmonic platforms combined with Plastic Optical Fibers and Molecularly Imprinted Polymers for chemical sensing.
Publication date: 2018
Journal: Optics & Laser Technology
Volume: 107
Page numbers: 484-490.
DOI: 10.1016/j.optlastec.2018.06.028
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0030399218306728

Abstract: A novel low-cost surface plasmon resonance (SPR) platform has been tested, for the first time, to monitor the interaction between a molecularly imprinted polymer (MIP) and a small molecule as the substrate. As a proof of principle, the considered MIP was specific for furfural (2-FAL, MW = 96.4), so that the possibility of using the new device for detection of 2-FAL in aqueous media was investigated. For the sake of comparison a sensor based on the same MIP specific for 2-FAL deposited on an SPR platform in a D-shaped plastic optical fiber (POF), which has been previously demonstrated to well perform for different analytes, has been considered too. The experimental results showed good performances of the novel platform for chemical sensing based on MIP as receptor in terms of selectivity, sensitivity and figure of merit (FOM). The limit of detection (LOD) of this simple and low-cost SPR sensor system is about 0.03 ppm, completely comparable to that of previously proposed devices based on SPR in a D-shaped POF (about 0.05 ppm), but with the advantage of an easier and more reproducible preparation procedure
Template and target information: furan-2-carbaldehyde, 2-FAL
Author keywords: surface plasmon resonance (SPR), Slab optical waveguides, Plastic optical fibers (POFs), molecularly imprinted polymer (MIP), Furan-2-carbaldehyde (2-FAL)

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