Abstract
A simple quinoline-based derivative (AQDPA) was developed as a highly efficient fluorescent sensor for sensing Zn 2+ and sequential recognition of pyrophosphate and sulfur ions. This chemosensor was synthesized from diisopropylamine and 2-chloro-N-(quinolin-8-yl)acetamide. The non-fluorescence sensor displayed significant and specific fluorescence enhancement after binding to Zn 2+ with high selectivity. The fluorescence titration analysis shows a detection limit for Zn 2+ at 4.1 × 10 −8 M. The sensing mechanisms of AQDPA binding to Zn 2+ were supported by 1 H NMR, HR-MS analysis, and density functional theory (DFT) study. Moreover, the fluorescence imaging in HeLa cells suggested that this simple sensor had great potential in the application of biological imaging.
Original language | English |
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Pages (from-to) | 312-318 |
Number of pages | 7 |
Journal | Dyes and Pigments |
Volume | 158 |
DOIs | |
Publication status | Published - 1 Nov 2018 |
Keywords
- DFT
- Fluorescence imaging
- Fluorescent sensor
- Quinoline
- Zinc ion
ASJC Scopus subject areas
- General Chemical Engineering
- Process Chemistry and Technology