A highly selective diarylethene chemosensor for colorimetric detection of CN- and fluorescent relay-detection of Al3+/Cr3+
A highly selective diarylethene chemosensor for colorimetric detection of CN- and fluorescent relay-detection of Al3+/Cr3+
复制标题
一种高选择性二芳基乙烯化学传感器，用于 CN- 的比色检测和 Al3 /Cr3 的荧光中继检测
DOI：
10.1016/j.dyepig.2017.12.041
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发表时间：
2018-04-01
影响因子：
4.5
通讯作者：
Pu, Shouzhi
中科院分区：
文献类型：
--
作者：
Feng, Erting;Fan, Congbin;Pu, Shouzhi
本工作设计并合成了一种新型的二芳基乙烯化学传感器，该传感器在紫外-可见光照射下具有优异的光致变色性能。此外，所制备的探针可以通过比色法检测CN-，颜色从无色变为肉眼可见的黄色。该传感器对Al ~（3+）/Cr ~（3+）具有很好的选择性和灵敏度。经Job's plot滴定和质谱分析证实，在与Al ~（3+）结合后，生成的二芳基乙烯铝络合物可表现出显著的荧光增强（Phi = 0.583），检测限（LOD）为5.47 × 10 ~（-7）M。二芳基乙烯基螯合物可进一步用作通过Al 3+置换引起的荧光猝灭灵敏检测Cr 3+的新平台。
In this work, a new diarylethene chemosensor with excellent photochromic properties upon UV-vis irradiation was designed and synthesized. Moreover, the fabricated probe could detect the CN- via colorimetric assay with the color change from colorless to yellow that can be observed by the naked eye. The sensor also exhibited an outstanding fluorescent relay-response toward Al3+/Cr3+ with high selectivity and sensitivity. Upon binding with Al3+, the generated diarylethene aluminum complex, confirmed by Job's plot titration and mass spectrometry analysis, could exhibit a remarkable fluorescence enhancement (Phi = 0.583) with a limit of detection (LOD) of 5.47 x 10(-7) M. The diarylethene-based chelate can be further used as a new platform for sensitive detection of Cr3+ through fluorescence quenching caused by Al3+ replacement.