Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber

We combine suspended-core microstructured optical fibers with the photoinduced electron transfer (PET) effect to demonstrate a new type of fluorescent optical fiber-dip sensing platform for small volume ion detection. A sensor design based on a simple model PET-fluoroionophore system and small core...

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Detalles Bibliográficos
Autores principales: Englich, Florian V., Foo, Tze Cheung, Richardson, Andrew C., Ebendorff-Heidepriem, Heike, Sumby, Christopher J., Monro, Tanya M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2011
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231295/
https://www.ncbi.nlm.nih.gov/pubmed/22163712
http://dx.doi.org/10.3390/s111009560
Descripción
Sumario:We combine suspended-core microstructured optical fibers with the photoinduced electron transfer (PET) effect to demonstrate a new type of fluorescent optical fiber-dip sensing platform for small volume ion detection. A sensor design based on a simple model PET-fluoroionophore system and small core microstructured optical fiber capable of detecting sodium ions is demonstrated. The performance of the dip sensor operating in a high sodium concentration regime (925 ppm Na(+)) and for lower sodium concentration environments (18.4 ppm Na(+)) is explored and future approaches to improving the sensor’s signal stability, sensitivity and selectivity are discussed.

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