A novel optical platform has been used to monitor the interaction between a molecularly imprinted polymer (MIP) and a small molecule. The new optical sensor is made of a polyethylene terephthalate substrate with a pattern of silver nanoparticles, printed on it by inkjet technology, and two plastic optical fibers (POFs). The POFs connect the optical sensor, later covered by the MIP layer, with a light source and with a spectrometer. The detection of furfural (furan-2-carbaldehyde, 2-FAL) in aqueous media was investigated exploiting a selective MIP receptor. The experimental results show that this novel approach presents a limit of detection of about 0.03 ppm, comparable to that of plasmonic sensors combined with the same MIP, but with the advantage of an easier preparation procedure.

A Novel Sensing Methodology to Detect Furfural in Water, Exploiting MIPs, and Inkjet-Printed Optical Waveguides

Marletta, Vincenzo;Baglio, Salvatore;Graziani, Salvatore;Pistorio, Antonio;Ando, Bruno
2019

Abstract

A novel optical platform has been used to monitor the interaction between a molecularly imprinted polymer (MIP) and a small molecule. The new optical sensor is made of a polyethylene terephthalate substrate with a pattern of silver nanoparticles, printed on it by inkjet technology, and two plastic optical fibers (POFs). The POFs connect the optical sensor, later covered by the MIP layer, with a light source and with a spectrometer. The detection of furfural (furan-2-carbaldehyde, 2-FAL) in aqueous media was investigated exploiting a selective MIP receptor. The experimental results show that this novel approach presents a limit of detection of about 0.03 ppm, comparable to that of plasmonic sensors combined with the same MIP, but with the advantage of an easier preparation procedure.
Furfural (furan-2-carbaldehyde); inkjet printing technology; molecularly imprinted polymers(MIPs); optical chemical sensors; plastic optical fibers (POFs); polyethylene terephthalate (PET).; Instrumentation; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/361854
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