Jump to main content
Jump to site search

Issue 22, 2018
Previous Article Next Article

A novel supramolecular AIE gel acts as a multi-analyte sensor array

Author affiliations

Abstract

A novel organic gelator (WJ) based on benzimidazole and acylhydrazone naphthol moities has been designed and synthesized. The organic gelator (WJ) could form a stable organogel (WJG) with strong aggregation-induced emission (AIE). Interestingly, the WJG shows multi-stimuli-response for many analytes such as CN, Al3+ and Fe3+ and L-Cys. Therefore, a multi-analyte sensor array based on WJG has been successfully developed. The WJG presents selective fluorescent and colorimetric response for CN. Meanwhile, the WJG could selectively identify Fe3+ and Al3+ in the gel state. With the addition of Fe3+ the yellow-green AIE of WJG was quenched. In addition, the AIE of WJG could be selectively recovered by adding L-Cys. So the AIE presents an “on–off–on” type by alternatively adding Fe3+ and L-Cys. Moreover, upon the addition of Al3+, the yellow-green AIE of WJG shows a blue shift and changes to blue. The detection limits of the sensor array for CN, Al3+ and Fe3+ are 3.02 × 10−6 M, 5.78 × 10−8 M, and 3.81 × 10−9 M, respectively. The WJG could act as a multi-analyte detection and fluorescent display material.

Graphical abstract: A novel supramolecular AIE gel acts as a multi-analyte sensor array

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Aug 2018, accepted on 01 Oct 2018 and first published on 05 Oct 2018


Article type: Paper
DOI: 10.1039/C8NJ04160A
Citation: New J. Chem., 2018,42, 18059-18065
  •   Request permissions

    A novel supramolecular AIE gel acts as a multi-analyte sensor array

    H. Yao, J. Wang, S. Song, Y. Fan, X. Guan, Q. Zhou, T. Wei, Q. Lin and Y. Zhang, New J. Chem., 2018, 42, 18059
    DOI: 10.1039/C8NJ04160A

Search articles by author

Spotlight

Advertisements