Synthesis of methionine methyl ester-modified coumarin as the fluorescent-colorimetric chemosensor for selective detection Cu2+ with application in molecular logic gate
| Autor: | Sheng-Nan Wang, Biao Wei, Shui-Sheng Chen, Jie Zhang, Zi-Qian Wang, Rui Qiao, Hui Miao, Qian Meng, Lin Zhang, Cui-Bing Bai, Hai-Yun Fan, Jia-Xin Liao |
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| Rok vydání: | 2019 |
| Předmět: |
Detection limit
Molecular logic gate Chemistry Silica gel Metal ions in aqueous solution 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Coumarin 01 natural sciences Fluorescence Atomic and Molecular Physics and Optics 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound 0210 nano-technology Selectivity Instrumentation Spectroscopy Derivative (chemistry) Nuclear chemistry |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 216:45-51 |
| ISSN: | 1386-1425 |
| DOI: | 10.1016/j.saa.2019.03.016 |
| Popis: | A methionine methyl ester-modified coumarin derivative was designed and synthesized, which could discriminate Cu2+ from other metal ions in HEPES buffer (10 mM, pH 7.4)/CH3CN (40:60, V/V). The detection limit of WM toward Cu2+ was 1.84 × 10−7 M, which was lower than the concentration of Cu2+ in drinking water suggested by WHO and EPA. And the proposed coordination mode exhibiting the interaction between WM and Cu2+ was studied by UV–Vis, fluorescence spectrum, ESI-MS and FT-IR. Based on the fluorescent reversibility of WM, WM was considered as a molecular logic gate and molecular keypad lock. In addition, the test strips and the silica gel plates prepared from the solution of WM also demonstrate the favorable selectivity toward Cu2+. |
| Databáze: | OpenAIRE |
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