Journal
SENSORS
Volume 18, Issue 1, Pages -Publisher
MDPI AG
DOI: 10.3390/s18010034
Keywords
polymer optical fibers; absorption evanescent wave sensing; bio-chemical sensing; surface functionalization
Funding
- European Regional Development Fund
- Ministerio de Economia y Competitividad [TEC2015-638263-C03-1-R]
- Gobierno Vasco/Eusko Jaurlaritza [IT933-16, IT718-13]
- ELKARTEK [KK-2016/0030, KK-2017/00033, KK-2017/00089, KK-2016/0059]
- Universidad del Pais Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Vicerrectorado de Euskera y Formacion Continua
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In this work we show an optical fiber evanescent wave absorption probe for glucose detection in different physiological media. High selectivity is achieved by functionalizing the surface of an only-core poly(methyl methacrylate) (PMMA) polymer optical fiber with phenilboronic groups, and enhanced sensitivity by using a U-shaped geometry. Employing a supercontinuum light source and a high-resolution spectrometer, absorption measurements are performed in the broadband visible light spectrum. Experimental results suggest the feasibility of such a fiber probe as a low-cost and selective glucose detector.
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