Highly selective fluorescent sensing for CN? in water: utilization of the supramolecular self-assembly?

Chemical Communications Pub Date: 2013-07-03 DOI: 10.1039/C3CC44056G

Abstract

A simple 4-amino-3-hydroxynaphthalene-1-sulfonic acid is demonstrated to fluorescently sense CN? in water based on the mechanism of supramolecular self-assembly. This work provides a novel approach for the selective recognition of CN? anions. The detection limit of the sensor towards CN? is 3.2 × 10?7 M, and other anions, including F?, Cl?, Br?, I?, AcO?, H2PO4?, HSO4? and ClO4?, had nearly no influence on the probing behavior. Notably, the test strips based on S4 were fabricated, which could act as convenient and efficient CN? test kits.

Graphical abstract: Highly selective fluorescent sensing for CN? in water: utilization of the supramolecular self-assembly
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