Xian Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an 710123, China.
Xian Kaixiang Photoelectric Technology Co, Ltd, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2023 Feb 15;287(Pt 1):122001. doi: 10.1016/j.saa.2022.122001. Epub 2022 Oct 19.
Imidazole functionalized on fluorescein dye was developed as an efficient probe for naked eye and fluorescence determination of fluoride ions. The probe is dramatic color change and very exciting fluorescence turn-on response with the addition fluoride ions. Moreover, fluoride ions triggering leads to the fissure of the spirolactam ring that causes drastic color makes feasible for the naked eye detection of fluoride ions. The mode of binding of fluoride with the probe was proved by H NMR titration experiments and the observed photophysical changes were rationalized by use of DFT calculations. This sensor was more applied to detect fluoride ions in real samples and imaging of fluoride ions through fluorescence imaging in living cells.
将咪唑官能团化到荧光染料上，开发出一种用于氟离子的肉眼和荧光测定的有效探针。探针与氟离子结合后，会发生明显的颜色变化和非常令人兴奋的荧光开启响应。此外，氟离子的加入引发螺环酰胺环的开裂，导致颜色急剧变化，使氟离子的肉眼检测成为可能。通过 H NMR 滴定实验证明了氟离子与探针的结合模式，并通过使用 DFT 计算合理化了观察到的光物理变化。该传感器更适用于检测实际样品中的氟离子，并通过活细胞中的荧光成像对氟离子进行成像。
