一种用于在乙醇水溶液中选择性检测锌离子的新型香豆素基荧光化学传感器。
A New Coumarin-Based Fluorescent Chemosensor for Selection Detection of Zinc Ions in Aqueous Ethanol.
作者信息
Yang Wensheng, Yang Wan, Ma Yajun, Yan Long
机构信息
School of Chemistry and Chemical Engineering, Yulin University, Yulin, China.
出版信息
Luminescence. 2025 Feb;40(2):e70122. doi: 10.1002/bio.70122.
In this study, a coumarin-based Schiff base (1) was designed and synthesized as a Zn-selective fluorescent chemosensor based on the PET mechanism. The structure of compound 1 was characterized by H NMR and C NMR. The fluorescence properties of this chemosensor toward various metal ions were explored by fluorescence and UV-vis spectra. The results indicated that the chemosensor had high selectivity toward Zn over other coexisting metal ions. The binding stoichiometry of 1 toward Zn was determined to be 1:1 by Job's plot. Furthermore, the chemosensor was reversible for Zn in an ethanol/HO (7:3, V/V) solution by the addition of Na EDTA. The above experimental results demonstrate that 1 can be used as a fluorescent chemosensor for the real-time detection of Zn in biological species and environmental systems.
在本研究中，设计并合成了一种基于香豆素的席夫碱（1），作为一种基于PET机制的锌选择性荧光化学传感器。通过1H NMR和13C NMR对化合物1的结构进行了表征。通过荧光光谱和紫外可见光谱研究了该化学传感器对各种金属离子的荧光性质。结果表明，该化学传感器对锌的选择性高于其他共存金属离子。通过Job曲线确定1与锌的结合化学计量比为1:1。此外，通过加入Na2EDTA，该化学传感器在乙醇/H2O（7:3，V/V）溶液中对锌是可逆的。上述实验结果表明，1可作为荧光化学传感器用于生物物种和环境系统中锌的实时检测。
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