用于高效检测致癌物的富氮四苯乙烯基发光金属有机框架
Nitrogen-Rich Tetraphenylethene-Based Luminescent Metal-Organic Framework for Efficient Detection of Carcinogens.
作者信息
Guo Chang-Rui, Ying Yan-Mei, Yu Maoxing, Xiong Yi, Liu Xun-Gao, Zhao Zujin
机构信息
College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China.
出版信息
ACS Omega. 2021 Jan 12;6(3):2177-2183. doi: 10.1021/acsomega.0c05457. eCollection 2021 Jan 26.
The introduction of nitrogen-rich functional groups into a luminescent metal-organic framework (LMOF) can enhance its fluorescent sensing ability. In this work, we designed and synthesized a triazole-containing tetracarboxyl-substituted tetraphenylethene (TPE) ligand, tetrakis[4-(4-carboxyphenyl)(1-1,2,3-triazol-4,1-diyl)phenyl]ethene (HTCPTAPE), featuring a prominent aggregation-induced emission (AIE). A highly porous TPE-based LMOF [Zn(TCPTAPE)(HO)(OH)] () with large pores was successfully obtained via solvothermal assembly of the HTCPTAPE ligand and Zn(II) ions, which showed a high fluorescence quantum yield of 54%. The activated could selectively and sensitively detect aristolochic acid I with a high fluorescence quenching efficiency of 96% and a low detection limit of 1.02 μM, indicating that it has a potential application as a luminescence-based chemical sensor for carcinogens.
将富氮官能团引入发光金属有机框架（LMOF）可增强其荧光传感能力。在本工作中，我们设计并合成了一种含三唑的四羧基取代四苯乙烯（TPE）配体，四[4-(4-羧基苯基)(1-1,2,3-三唑-4,1-二基)苯基]乙烯（HTCPTAPE），其具有显著的聚集诱导发光（AIE）特性。通过HTCPTAPE配体与Zn(II)离子的溶剂热组装，成功获得了一种具有大孔的高孔隙率TPE基LMOF [Zn(TCPTAPE)(H₂O)(OH)] （），其荧光量子产率高达54%。活化后的该材料能够选择性且灵敏地检测马兜铃酸I，荧光猝灭效率高达96%，检测限低至1.02 μM，表明它具有作为致癌物发光化学传感器的潜在应用价值。
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