A simple organic multi-analyte fluorescent prober: One molecule realizes the detection to DNT, TATP and Sarin substitute gas.
A simple organic multi-analyte fluorescent prober: One molecule realizes the detection to DNT, TATP and Sarin substitute gas.
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DOI：
10.1016/j.jhazmat.2020.124500
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发表时间：
2020-11
影响因子：
13.6
通讯作者：
Ping Zheng;Alim Abdurahman;Zhaoxia Zhang;Yuting Feng;Yimeng Zhang;X. Ai;Feng Li;Ming Zhang
中科院分区：
文献类型：
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作者：
Ping Zheng;Alim Abdurahman;Zhaoxia Zhang;Yuting Feng;Yimeng Zhang;X. Ai;Feng Li;Ming Zhang
爆炸物和化学战剂 (CWA) 的检测对于全球安全始终很重要。在这项研究中，报道了一种简单的供体（D）-受体（A）型小有机荧光三唑分子（T1）。T1由中心4H-1,2,4-三唑（TAZ）“核心”和三个外部三苯胺（TPA）基团组成。其旋涂薄膜可实现多分析物荧光探针检测DNT（2, 4-二硝基甲苯）、过氧化氢（H2O2，三过氧化三丙酮（TATP）的替代品）和氯磷酸二乙酯（DCP，沙林的替代品）蒸气。此外，不同通道的三重传感机制的组合提供了三组不同的输出信号响应，可以以高灵敏度和选择性快速识别这三种有害化合物：对DNT的荧光关闭响应、对H2O2的荧光开启响应以及对DCP的荧光比色双通道响应。T1荧光探针非常有利于同时监测各种有害目标物质，同时具有理想的灵敏度和选择性，以及良好的可重复性。因此，本研究提供了一种构建新型多功能荧光探针的原型方法，用于炸药和化学武器。
The detections of explosives and chemical warfare agents (CWAs) are always important for global security. In this study, a simple donor (D)- acceptor (A) type small organic fluorescent triazole-based molecule (T1) is reported.T1is composed of a central 4H-1, 2, 4-triazole (TAZ) “core” and three external triphenylamine (TPA) groups. Its spin-coating films can realize the multi-analyte fluorescent prober to detect DNT (2, 4-dinitrotoluene), hydrogen peroxide (H2O2, the substitute for triacetone triperoxide (TATP)) and diethylchlorophosphate (DCP, the substitute for Sarin) vapors. Additionally, the combination of the triple sensing mechanism in the different channels affords three distinct sets of output-signal responses, these three hazardous compounds could be identified rapidly with high sensitivity and selectivity: fluorescence turn-off response to DNT, fluorescence turn-on response to H2O2and fluorometric-colorimetric dual-channel response to DCP.T1fluorescent probe is highly advantageous for concurrently monitoring various hazardous target substances and simultaneously possessing the desirable sensitivity and selectivity, excellent reusability. Hereby, this study provides a prototype method to build novel multifunctional fluorescent probes to explosives and CWAs.