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  • Title: A Biocompatible Colorimetric Triphenylamine- Dicyanovinyl Conjugated Fluorescent Probe for Selective and Sensitive Detection of Cyanide Ion in Aqueous Media and Living Cells.
    Author: Zheng ZH, Li ZK, Song LJ, Wang QW, Huang QF, Yang L.
    Journal: Sensors (Basel); 2017 Feb 19; 17(2):. PubMed ID: 28218723.
    Abstract:
    A colorimetric and turn-on fluorescent probe 1 bearing triphenylamine-thiophene and dicyanovinyl groups has been synthesized and used to detect cyanide anion via a nucleophilic addition reaction. Probe 1 exhibited prominent selectivity and sensitivity towards CN- in aqueous media, even in the presence of other anions such as S2-, HS-, SO₃2-, S₂O₃2-, S₂O₈2-, I-, Br-, Cl-, F-, NO₂-, N₃-, SO₄2-, SCN-, HCO₃-, CO₃2- and AcO-. Moreover, a low detection limit (LOD, 51 nM) was observed. In addition, good cell membrane permeability and low cytotoxicity to HeLa cells were also observed, suggesting its promising potential in bio-imaging.
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