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- Title
A Benzothiazole-Based Fluorescent Probe for Ratiometric Detection of Al3+ and Its Application in Water Samples and Cell Imaging.
- Authors
Tian, Zhen-Nan; Wu, Ding-Qi; Sun, Xue-Jiao; Liu, Ting-Ting; Xing, Zhi-Yong
- Abstract
An easily prepared benzothiazole-based probe (BHM) was prepared and characterized by general spectra, including 1H NMR, 13C NMR, HRMS, and single-crystal X-ray diffraction. Based on the synergistic mechanism of the inhabitation of intramolecular charge transfer (ICT), the BHM displayed high selectivity and sensitivity for Al3+ in DMF/H2O (v/v, 1/1) through an obvious blue-shift in the fluorescent spectrum and significant color change detected by the naked eye, respectively. The binding ratio of BHM with Al3+ was 1:1, as determined by the Job plot, and the binding details were investigated using FT-IR, 1H NMR titration, and ESI-MS analysis. Furthermore, the BHM was successfully applied in the detection of Al3+ in the Songhua River and on a test stripe. Fluorescence imaging experiments confirmed that the BHM could be used to monitor Al3+ in human stromal cells (HSC).
- Subjects
FLUORESCENT probes; CELL imaging; INTRAMOLECULAR charge transfer; WATER sampling; STROMAL cells; COLORIMETRY; CHEMICAL shift (Nuclear magnetic resonance)
- Publication
International Journal of Molecular Sciences, 2019, Vol 20, Issue 23, p5993
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms20235993