基于含咪唑单元二苯并乙烯的高灵敏荧光传感器检测 Zn
A highly sensitive fluorescent sensor for Zn based on diarylethene with an imidazole unit.
机构信息
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Dec 5;205:21-28. doi: 10.1016/j.saa.2018.07.014. Epub 2018 Jul 6.
A new sensitive sensor for Zn based on diarylethene with an imidazole unit has been synthesized. Its photochromic and fluorescent behaviors have been systematically investigated by the stimulation of UV/vis lights and Zn ion in THF solution. It displayed a dual-mode with a "turn on" fluorescence and color response to Zn. With the addition of Zn, the emission intensity enhanced 26-fold, accompanied by the fluorescent color changed from dark red to bright yellow. The 1:1 stoichiometry between the sensor and Zn was verified by Job's plot and MS. The LOD for Zn was determined to be 6.12 × 10 mol L. Furthermore, a logic circuit was designed by using the fluorescence at 578 nm as output and the combinational stimuli of UV/vis and Zn/EDTA as inputs.
一种基于二苯乙烯并带有咪唑单元的新型锌敏传感器已经被合成。其光致变色和荧光行为通过 THF 溶液中紫外/可见光和锌离子的刺激得到了系统的研究。该传感器具有双模式，对 Zn 具有“开启”荧光和颜色响应。随着 Zn 的加入，发射强度增强了 26 倍，同时荧光颜色从暗红色变为亮黄色。通过 Job 图和 MS 验证了传感器和 Zn 之间的 1:1 化学计量关系。Zn 的检出限为 6.12×10-7mol·L-1。此外，通过将 578nm 处的荧光作为输出，并将紫外/可见光和 Zn/EDTA 的组合刺激作为输入，设计了一个逻辑电路。
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