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Published in: Cellulose 16/2021

20-09-2021 | Original Research

Pyrimidin-2-amine derivative-grafted cellulose ratiometric fluorescent probe for pH detection in extremely acidic media

Authors: Jie Yin, Yan Zhang, Zhi-Yuan Meng, Ming-Xin Li, Fei Zhao, Shi-Fa Wang, Zhong-Long Wang, Yi-Qin Yang

Published in: Cellulose | Issue 16/2021

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Abstract

A novel cellulose-based ratiometric fluorescent probe DAC-CPA was rationally developed and synthesized by grafting camphor-derived pyrimidine-2-amine (CPA) onto dialdehyde cellulose (DAC). The probe DAC-CPA was capable of monitoring extremely acidic conditions with a pKa of 1.57. The pH titration experiments demonstrated that the probe DAC-CPA displayed a distinct red-shifted fluorescent emission from 416 to 486 nm along with decreasing pH values from 6.86 to 1.04. This probe responds linearly to the acidic pH region within the range of 1.04–2.35. The probe DAC-CPA also displayed high selectivity, good repeatability, prominent stability and rapid response toward H+. Moreover, the portable DAC-CPA hydrogel was fabricated that benefited from its excellent formability and could be conveniently and effectively applied to sensing acidic pH conditions (1.0–5.0). Furthermore, this proposed probe could be utilized as a solid-state device for selective and sensitive visualization of acidic pH circumstances. More importantly, the probe DAC-CPA was successfully applied to determine the pH values of some real vinegar samples.

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Appendix
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Literature
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Metadata
Title
Pyrimidin-2-amine derivative-grafted cellulose ratiometric fluorescent probe for pH detection in extremely acidic media
Authors
Jie Yin
Yan Zhang
Zhi-Yuan Meng
Ming-Xin Li
Fei Zhao
Shi-Fa Wang
Zhong-Long Wang
Yi-Qin Yang
Publication date
20-09-2021
Publisher
Springer Netherlands
Published in
Cellulose / Issue 16/2021
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04194-x

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