School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province 236037, China; Anhui Province Key Laboratory for Degradation and Monitoring of Pollution of the Environment, 236037, China.
School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province 236037, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2019 Jun 5;216:45-51. doi: 10.1016/j.saa.2019.03.016. Epub 2019 Mar 8.
A methionine methyl ester-modified coumarin derivative was designed and synthesized, which could discriminate Cu from other metal ions in HEPES buffer (10 mM, pH 7.4)/CHCN (40:60, V/V). The detection limit of WM toward Cu was 1.84 × 10 M, which was lower than the concentration of Cu in drinking water suggested by WHO and EPA. And the proposed coordination mode exhibiting the interaction between WM and Cu 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 Cu.
设计并合成了一种蛋氨酸甲酯修饰的香豆素衍生物，它可以在 HEPES 缓冲液（10 mM，pH 7.4）/CHCN（40:60，V/V）中区分 Cu 和其他金属离子。WM 对 Cu 的检测限为 1.84×10-7 M，低于世界卫生组织和美国环保署建议的饮用水中 Cu 的浓度。通过紫外可见光谱、荧光光谱、ESI-MS 和 FT-IR 研究了 WM 与 Cu 之间的配位模式。基于 WM 的荧光可逆性，WM 被认为是分子逻辑门和分子键盘锁。此外，由 WM 溶液制备的试条和硅胶板也表现出对 Cu 的良好选择性。
