U-bend fibre optic pH sensors using layer-by-layer electrostatic self-assembly technique

A layer-by-layer assembly technique is used to coat layers of nano-thin-films of pH indicator on a U-bend optical fibre to create an effective sensor, using neutral red as the active element. The experimental results characterizing such a pH sensor shows a wide pH sensing range (from pH5 to pH10) fa...

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Bibliographic Details
Published in:Journal of physics. Conference series 2009-07, Vol.178 (1), p.012046
Main Authors: Surre, F, Lyons, W B, Sun, T, Grattan, K T V, O'Keeffe, S, Lewis, E, Elosua, C, Hernaez, M, Barian, C
Format: Article
Language:English
Subjects:
Optical fibers
Physics
Self-assembly
Thin films
U bends
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Summary:A layer-by-layer assembly technique is used to coat layers of nano-thin-films of pH indicator on a U-bend optical fibre to create an effective sensor, using neutral red as the active element. The experimental results characterizing such a pH sensor shows a wide pH sensing range (from pH5 to pH10) fast response.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/178/1/012046