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Novel coumarin-based pH sensitive fluorescent probes for the highly alkaline pH region

Nguyen, T.H., Sun, T. ORCID: 0000-0003-3861-8933 & Grattan, K. T. V. ORCID: 0000-0003-2250-3832 (2020). Novel coumarin-based pH sensitive fluorescent probes for the highly alkaline pH region. Dyes and Pigments, 177, article number 108312. doi: 10.1016/j.dyepig.2020.108312


The design, synthesis and spectroscopic properties of novel polymerizable coumarin-based pH indicators are reported. They show a fluorescence response to pH in the highly alkaline pH region with calculated pKa values in the range of 12.2–12.5. Covalent immobilization of the indicators to polymer supports provides novel pH-sensitive materials that possess excellent photostability. The materials are sensitive to pH in a similar range and can be applied in optical pH sensors for measuring pH in various alkaline media.

Publication Type: Article
Additional Information: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Publisher Keywords: Fluorescent sensor, Fluorescent polymer, High pH sensor, Coumarin dye
Subjects: Q Science > QD Chemistry
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments: School of Science & Technology > Engineering
SWORD Depositor:
[thumbnail of 0308 Hien Dyes and Pigments paper.pdf]
Text - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

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