Yang HH, Liu PP, Hu JP, Fang H, Lin Q, Hong Y, Zhang YM, Qu WJ, Wei TB. A fluorescent supramolecular gel and its application in the ultrasensitive detection of CN
- by anion-π interactions.
SOFT MATTER 2020;
16:9876-9881. [PMID:
33006593 DOI:
10.1039/d0sm01392g]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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 × 10-10 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.
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