Sensors 2011, 11(10), 9560-9572; doi:10.3390/s111009560
Article

Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber

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Received: 8 September 2011; in revised form: 5 October 2011 / Accepted: 7 October 2011 / Published: 11 October 2011
(This article belongs to the Section Physical Sensors)
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Abstract: 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.
Keywords: fluorescence sensor; fiber-optic sensor; microstructured optical fiber (MOF); photo induced electron transfer (PET); metal ion
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Englich, F.V.; Foo, T.C.; Richardson, A.C.; Ebendorff-Heidepriem, H.; Sumby, C.J.; Monro, T.M. Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber. Sensors 2011, 11, 9560-9572.

AMA Style

Englich FV, Foo TC, Richardson AC, Ebendorff-Heidepriem H, Sumby CJ, Monro TM. Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber. Sensors. 2011; 11(10):9560-9572.

Chicago/Turabian Style

Englich, Florian V.; Foo, Tze Cheung; Richardson, Andrew C.; Ebendorff-Heidepriem, Heike; Sumby, Christopher J.; Monro, Tanya M. 2011. "Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber." Sensors 11, no. 10: 9560-9572.


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