AIE-active luminogen for highly sensitive and selective detection of picric acid in water samples: Pyridyl as an effective recognition group
AIE-active luminogen for highly sensitive and selective detection of picric acid in water samples: Pyridyl as an effective recognition group
复制标题
用于高灵敏度和选择性检测水样中苦味酸的 AIE 活性发光体：吡啶基作为有效识别基团
DOI：
10.1016/j.dyepig.2018.11.034
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发表时间：
2019-04-01
影响因子：
4.5
通讯作者：
Yang, Jiaxiang
中科院分区：
文献类型：
--
作者：
Ma, Yuqing;Zhang, Yuyang;Yang, Jiaxiang
硝基芳烃类爆炸物尤其是苦味酸类爆炸物的检测对人类安全和国家安全具有重要意义。在此，我们开发了一种有效的探针（APPTPEP）检测PA在水介质中通过组合的1，4-二氢吡咯并[3，2-B]吡咯与四苯乙烯和吡啶单元。四苯乙烯单元的引入使APPTPEP具有显著的聚集诱导发光（AIE）行为。吡啶基被证明是PA的识别位点，它们之间的强相互作用通过H-1 NMR滴定得到证实，并得到理论计算的支持。由于这种强大的亲和力，APPTPEP表现出较高的选择性和灵敏度（检测限31.5 nM）PA超过其他硝基芳香族化合物。该研究为合理设计高效传感应用的AIE活性材料提供了新的见解。
Detection of nitroaromatic explosives especially picric acid (PA) is considerably worth concern on human safety and homeland security. Herein, we developed an effective probe (APPTPEP) for PA detection in aqueous medium by combination of 1,4-dihydropyrrolo[3,2-b]pyrrole with tetraphenylethylene and pyridine units. The incorporation of tetraphenylethylene unit in the backbone endows the APPTPEP a significant aggregation induced emission (AIE) behavior. Pyridyl group was proved as recognition site for PA and their strong interaction was confirmed by H-1 NMR titration and supported by theoretical calculation. Owing to this strong affinity, APPTPEP exhibited high selectivity and sensitivity (limit of detection 31.5 nM) to PA over other nitroaromatic compounds. This research provides new insights into the rational design of AIE-active materials for effective sensing application.