title: A new thiacalix[4]arene-fluorescein based probe for detection of CN(-) and Cu(2+) ions and construction of a sequential logic circuit.
abstract: A new thiacalix[4]arene-fluorescein based fluorescent probe was synthesized, which shows a turn-on fluorescence response in the presence of CN(-) ions attributed to the nucleophilic addition of cyanide ions and the resulting cyanide adduct was used for the selective detection of copper ions. Furthermore, based on the fluorescence response a two input, one output, sequential logic circuit was constructed in the presence of CN(-) and Cu(2+) ions.
authors.affiliation: Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar, Punjab, India. mksharmaa@yahoo.co.in vanmanan@yahoo.co.in.
authors.forename: Neetu
authors.initials: N
authors.lastname: Sharma
authors.forename: Shahi Imam
authors.initials: SI
authors.lastname: Reja
authors.forename: Vandana
authors.initials: V
authors.lastname: Bhalla
authors.forename: Manoj
authors.initials: M
authors.lastname: Kumar
mesh_terms: D003300:Copper / Q000032:analysis* / Q000737:chemistry; D003486:Cyanides / Q000032:analysis* / Q000737:chemistry; D019793:Fluorescein / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D008128:Logic; D010636:Phenols / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013440:Sulfides / Q000737:chemistry*
chemical_list: D003486:Cyanides; D005456:Fluorescent Dyes; D010636:Phenols; D013440:Sulfides; C500450:thiacalix(4)arene; D003300:Copper; D019793:Fluorescein