title: A Simple Colorimetric Chemosensor for Naked Eye Detection of Cyanide Ion.
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.
authors.affiliation: Department of Chemistry, Alzahra University, Vanak Square, P.O. Box 1993893973, Tehran, Iran.
authors.forename: Parisa
authors.initials: P
authors.lastname: Gholamzadeh
authors.affiliation: Department of Chemistry, Alzahra University, Vanak Square, P.O. Box 1993893973, Tehran, Iran. gmziarani@hotmail.com.
authors.forename: Ghodsi
authors.initials: G
authors.lastname: Mohammadi Ziarani
authors.affiliation: School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
authors.forename: Negar
authors.initials: N
authors.lastname: Lashgari
authors.affiliation: School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Badiei
authors.affiliation: School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Shayesteh
authors.affiliation: School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Jafari
mesh_terms: D000838:Anions; D015374:Biosensing Techniques; D003124:Colorimetry / Q000379:methods*; D003486:Cyanides / Q000032:analysis*; D005456:Fluorescent Dyes; D013050:Spectrometry, Fluorescence
chemical_list: D000838:Anions; D003486:Cyanides; D005456:Fluorescent Dyes
keywords: Chemosensor; Computational study; Cyanide sensing; Detection limit; Naked eye detection