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Aggregation-induced emission nanofiber as a dual sensor for aromatic amine and acid vapor
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2017-10-17 00:00:00 , DOI: 10.1039/c7tc03192k Pengchong Xue 1, 2, 3, 4, 5 , Jipeng Ding 4, 6, 7, 8 , Yanbing Shen 4, 6, 7, 8 , Hongqiang Gao 4, 6, 7, 8 , Jinyu Zhao 4, 6, 7, 8 , Jingbo Sun 4, 6, 7, 8 , Ran Lu 4, 6, 7, 8
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2017-10-17 00:00:00 , DOI: 10.1039/c7tc03192k Pengchong Xue 1, 2, 3, 4, 5 , Jipeng Ding 4, 6, 7, 8 , Yanbing Shen 4, 6, 7, 8 , Hongqiang Gao 4, 6, 7, 8 , Jinyu Zhao 4, 6, 7, 8 , Jingbo Sun 4, 6, 7, 8 , Ran Lu 4, 6, 7, 8
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Two cyano-substituted vinylacridine derivatives linked with N-dodecyl-L-phenylalaninamide through succinyl (PC2VA) and glutaryl (PC3VA) groups were synthesized and were found to exhibit aggregation-induced emission properties. These two compounds could form gels in some solvents at low concentrations and exhibit fluorescence enhancement during gelation. The gelation abilities and microstructure intermolecular interactions of these compounds were different, although their molecular structures varied by only one methylene group. Moreover, a uniform fibrous film that could be used as an effective dual sensor on glass plates was prepared using PC2VA wet gels to quantitatively detect aromatic amine and volatile acid vapors caused by the low HOMO energy level of the fluorophore and the existence of the acridine moiety as an acid binding site. The response times and detection limits (DL) for the vapors are short and low, respectively. The DL of aniline reaches 1.3 μg m−3 because an amplifying fluorescence quenching exists within the long nanofibers induced by efficient exciton diffusion along the π–π stacking direction. Moreover, the DL for trifluoroacetic acid is low and determined to be 2.3 mg m−3.
中文翻译：
聚集诱导的发射纳米纤维作为芳香胺和酸蒸气的双重传感器
与N-十二烷基-L连接的两个氰基取代的乙烯基ac啶衍生物合成了通过琥珀酰基（PC2VA）和戊二烯基（PC3VA）生成的-苯丙氨酰胺，发现它们具有聚集诱导的发射特性。这两种化合物可以在某些溶剂中以低浓度形成凝胶，并在胶凝过程中表现出荧光增强作用。这些化合物的胶凝能力和微观结构的分子间相互作用是不同的，尽管它们的分子结构仅变化了一个亚甲基。此外，使用PC2VA湿凝胶制备了可以用作玻璃板上有效双传感器的均匀纤维膜，以定量检测由荧光团的低HOMO能级和the啶部分的存在引起的芳族胺和挥发性酸蒸气。作为酸结合位点。蒸汽的响应时间和检测极限（DL）短而低，分别。苯胺的DL达到1.3μgm−3是因为在有效的激子沿π-π堆叠方向的扩散作用下，长纳米纤维内存在放大的荧光猝灭。另外，三氟乙酸的DL低，为2.3mg m -3。
更新日期：2017-11-16
中文翻译：
聚集诱导的发射纳米纤维作为芳香胺和酸蒸气的双重传感器
与N-十二烷基-L连接的两个氰基取代的乙烯基ac啶衍生物合成了通过琥珀酰基（PC2VA）和戊二烯基（PC3VA）生成的-苯丙氨酰胺，发现它们具有聚集诱导的发射特性。这两种化合物可以在某些溶剂中以低浓度形成凝胶，并在胶凝过程中表现出荧光增强作用。这些化合物的胶凝能力和微观结构的分子间相互作用是不同的，尽管它们的分子结构仅变化了一个亚甲基。此外，使用PC2VA湿凝胶制备了可以用作玻璃板上有效双传感器的均匀纤维膜，以定量检测由荧光团的低HOMO能级和the啶部分的存在引起的芳族胺和挥发性酸蒸气。作为酸结合位点。蒸汽的响应时间和检测极限（DL）短而低，分别。苯胺的DL达到1.3μgm−3是因为在有效的激子沿π-π堆叠方向的扩散作用下，长纳米纤维内存在放大的荧光猝灭。另外，三氟乙酸的DL低，为2.3mg m -3。
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