A novel optical 1 platform has been used to monitor 2 the interaction between a molecularly imprinted polymer (MIP) 3 and a small molecule. The new optical sensor is made of a 4 polyethylene terephthalate substrate with a pattern of silver 5 nanoparticles, printed on it by inkjet technology, and two plastic 6 optical fibers (POFs). The POFs connect the optical sensor, 7 later covered by the MIP layer, with a light source and with 8 a spectrometer. The detection of furfural (furan-2-carbaldehyde, 9 2-FAL) in aqueous media was investigated exploiting a selective 10 MIP receptor. The experimental results show that this novel 11 approach presents a limit of detection of about 0.03 ppm, 12 comparable to that of plasmonic sensors combined with the same 13 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
Pesavento, Maria;MARCHETTI, SIMONE;
2018-01-01
Abstract
A novel optical 1 platform has been used to monitor 2 the interaction between a molecularly imprinted polymer (MIP) 3 and a small molecule. The new optical sensor is made of a 4 polyethylene terephthalate substrate with a pattern of silver 5 nanoparticles, printed on it by inkjet technology, and two plastic 6 optical fibers (POFs). The POFs connect the optical sensor, 7 later covered by the MIP layer, with a light source and with 8 a spectrometer. The detection of furfural (furan-2-carbaldehyde, 9 2-FAL) in aqueous media was investigated exploiting a selective 10 MIP receptor. The experimental results show that this novel 11 approach presents a limit of detection of about 0.03 ppm, 12 comparable to that of plasmonic sensors combined with the same 13 MIP, but with the advantage of an easier preparation procedure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
