A reflection-mode fibre-optic sensor for breath carbon dioxide measurement in healthcare
A reflection-mode carbon dioxide (CO2) fibre optic sensor (FOS) is developed based on the colorimetric change of pH indicator dye thymol blue. The CO2 sensing film comprises thymol blue and tetramethylammonium hydroxide in the form of an ion pair doped in an organically modified silica film. A dip c...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2019-02-01
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Series: | Sensing and Bio-Sensing Research |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2214180418301119 |