Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7147768 | Sensors and Actuators B: Chemical | 2014 | 8 Pages |
Abstract
A biomimetic sensor based on molecularly imprinted polymer (MIP) and surface plasmon resonance (SPR) transduction, in connection with tapered plastic optical fiber (POF), has been developed for the marker-free, direct and selective detection of low molecular weight substances. The device has been experimentally tested for l-nicotine ((â)-1-methyl-2-(3-pyridyl)pyrrolidine, MWÂ =Â 162.24). The sensor system developed made the selective and fast detection of l-nicotine possible, with a low cost, easy to realize and small sample volume procedure. The sensor can discriminate between l- and d-nicotine. The linearity range was from 0 to 10â3Â M, and the sensitivity strongly depended on the characteristics of the tapered fiber, ranging from 1.3Â ÃÂ 104Â nm/M, for a taper ratio 1.8, to 1.7Â ÃÂ 103Â nm/M for a taper ratio 1, i.e. a not-tapered fiber.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
N. Cennamo, G. D'Agostino, M. Pesavento, L. Zeni,