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  • Title: A Simple Colorimetric Chemosensor for Naked Eye Detection of Cyanide Ion.
    Author: Gholamzadeh P, Mohammadi Ziarani G, Lashgari N, Badiei A, Shayesteh A, Jafari M.
    Journal: J Fluoresc; 2016 Sep; 26(5):1857-64. PubMed ID: 27448224.
    Abstract:
    A simple cyanide chemosensor tetranitrile compound 1 was designed and synthesized via an efficient method in the presence of nanoporous SBA-Pr-NH2 as the catalyst. The chemosensor exhibited high selectivity and sensitivity for detecting CN¯ among different anions through a visual color change from light yellow to purple. The results confirmed that the chemosensor 1 causes the color of the solution to change depending on the concentration of CN¯. Linear changes of the optical properties of the sensor as a function of the concentrations of CN¯ was proved. The detection limit of 3.07 × 10(-7) M was calculated for CN¯. A simple paper test strip system for the rapid detection of CN¯ was developed. The TD-DFT calculations were carried out to understand the sensing mechanism.
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