This critical review focuses on recent advances (2010-2015) in the detection of cyanide anion via metal-based optical chemosensors in which a change in colour and/or fluorescence intensity (or emission wavelength) of a molecular metal complex is determined by the direct interaction of the metal centre with this anion.
Keywords: Anion binding; Cyanide recognition; Cyanide sensing; Fluorescence chemosensor; Metal complexes; Optical chemosensor.