Spectroscopic properties of a chromone-fluorescein conjugate as Mg2+ 'turn on' fluorescent probe
| Autor: | Chao-rui Li, Zheng-yin Yang, Guan-qun Wang, Si-liang Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Fluorophore
Ligand General Chemical Engineering General Physics and Astronomy 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences chemistry.chemical_compound chemistry Chromone Moiety Fluorescein 0210 nano-technology Magnesium ion Conjugate |
| Zdroj: | Journal of Photochemistry and Photobiology A: Chemistry. 356:700-707 |
| ISSN: | 1010-6030 |
| DOI: | 10.1016/j.jphotochem.2016.03.001 |
| Popis: | In this study, a novel fluorescein-derived Schiff-base ligand bearing a chromone moiety which was called 6-Hydroxy-3-formylchromone fluorescein hydrazone (1) has been designed, synthesized and evaluated as a Mg2+ "turn on" fluorescent probe. This probe 1 exhibited high selectivity and sensitivity towards Mg2+ over other important metal ions investigated, and the remarkable enhancement in fluorescence emission centered at 504 nm was observed in the presence of Mg2+, which was attributed to the ring opening process of the fluorescein fluorophore in probe 1 upon complexation of 1 with Mg2+. Furthermore, the "turn on" response of this probe 1 to Mg2+ was nearly completed within 3 min, which indicated that this probe 1 could be utilized to sense and monitor Mg2+. for real-time detection. (C) 2016 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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