Liquid-Core Microstructured Polymer Optical Fiber as Fiber-Enhanced Raman Spectroscopy Probe for Glucose Sensing

[EN] This work reports the development and application of two liquid-core microstructured polymer optical fibers (LCmPOF) with different microstructure sizes. They are used in a fiber-enhanced Raman spectroscopy sensing platform,with the aim of detecting glucose in aqueous solutions in the clinicall...

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Detalles Bibliográficos
Autores: Azkune Ulla, Mikel, Frosch, Timea, Arrospide Zabala, Eneko, Aldabaldetreku Etxeberria, Gotzon, Bikandi Irazabal, Iñaki, Zubia Zaballa, Joseba Andoni, Popp, Jurgen, Frosch, Torsten
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/64683
Acceso en línea:http://hdl.handle.net/10810/64683
Access Level:acceso abierto
Palabra clave:fiber enhanced Raman spectroscopy
glucose sensing
hollow-core microstructured polymer optical fibers
Descripción
Sumario:[EN] This work reports the development and application of two liquid-core microstructured polymer optical fibers (LCmPOF) with different microstructure sizes. They are used in a fiber-enhanced Raman spectroscopy sensing platform,with the aim of detecting glucose in aqueous solutions in the clinically relevant range for sodium–glucose cotransporter 2 inhibitor therapy. The sensing platform is tested for low-concentration glucose solutions using each LC-mPOF. Results confirm that a significant enhancement of theRaman signal is achieved in comparison to conventional Raman spectroscopy. Additional measurements are carried out to obtain the valid measurement range, the resolution, and the limit of detection, showing that the LC-mPOF with 66-μm-diameter central hollow core has the highest potential for future clinical applications. Finally, preliminary tests successfully demonstrate glucose identification in urine.