一种荧光超分子凝胶及其在通过阴离子-π 相互作用对 CN 进行超灵敏检测中的应用。

A fluorescent supramolecular gel and its application in the ultrasensitive detection of CN by anion-π interactions.

机构信息

Key Laboratory of Polymer Materials of Gansu Province, Research Center of Gansu Military and Civilian Integration Advanced Structural Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Anning East Road 967, Lanzhou, Gansu 730070, P. R. China.

出版信息

Soft Matter. 2020 Nov 21;16(43):9876-9881. doi: 10.1039/d0sm01392g. Epub 2020 Oct 2.

DOI:10.1039/d0sm01392g

PMID:33006593

Abstract

Supramolecular gels have been widely reported on account of their unique superiority and application prospects. In this work, we constructed a novel supramolecular gel (HD-G) by using hydroxy-naphthaldehyde decorated with naphthalimide in DMSO solution, which exhibited excellent selectivity and ultrasensitive sensing properties toward CN (the lowest detection limit is 1.82 × 10 M). The sensing mechanism of this supramolecular gel takes advantage of π-π stacking interactions and anion-π interactions, which is different from the other familiar methods.

摘要

超分子凝胶因其独特的优势和应用前景而被广泛报道。在这项工作中，我们通过在 DMSO 溶液中使用带有萘酰亚胺修饰的羟基萘醛构建了一种新型超分子凝胶（HD-G），该凝胶对 CN 表现出优异的选择性和超灵敏传感性能（最低检测限为 1.82×10 M）。这种超分子凝胶的传感机制利用了π-π堆积相互作用和阴离子-π相互作用，与其他常见方法不同。