title: A chemosensor showing discriminating fluorescent response for highly selective and nanomolar detection of Cu²⁺ and Zn²⁺ and its application in molecular logic gate.
abstract: A fluorescent based receptor (4Z)-4-(4-diethylamino)-2-hydroxybenzylidene amino)-1,2dihydro-1,5-dimethyl-2-phenylpyrazol-3-one (receptor 3) was developed for the highly selective and sensitive detection of Cu(2+) and Zn(2+) in semi-aqueous system. The fluorescence of receptor 3 was enhanced and quenched, respectively, with the addition of Zn(2+) and Cu(2+) ions over other surveyed cations. The receptor formed host-guest complexes in 1:1 stoichiometry with the detection limit of 5 nM and 15 nM for Cu(2+) and Zn(2+) ions, respectively. Further, we have effectively utilized the two metal ions (Cu(2+) and Zn(2+)) as chemical inputs for the manufacture of INHIBIT type logic gate at molecular level using the fluorescence responses of receptor 3 at 450 nm.
authors.affiliation: School of Chemical Sciences, North Maharashtra University, Jalgaon, 425001 MS, India; School of Environmental and Earth Sciences, North Maharashtra University, Jalgaon, 425001 MS, India.
authors.forename: Umesh A
authors.initials: UA
authors.lastname: Fegade
authors.affiliation: Department of Applied Chemistry, SV National Institute Technology, Surat, 395007 Gujarat, India.
authors.forename: Suban K
authors.initials: SK
authors.lastname: Sahoo
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Ropar, Rupanagar, 140001 Punjab, India.
authors.forename: Amanpreet
authors.initials: A
authors.lastname: Singh
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Ropar, Rupanagar, 140001 Punjab, India.
authors.forename: Narinder
authors.initials: N
authors.lastname: Singh
authors.affiliation: School of Environmental and Earth Sciences, North Maharashtra University, Jalgaon, 425001 MS, India.
authors.forename: Sanjay B
authors.initials: SB
authors.lastname: Attarde
authors.affiliation: School of Chemical Sciences, North Maharashtra University, Jalgaon, 425001 MS, India. Electronic address: kuwaras@gmail.com.
authors.forename: Anil S
authors.initials: AS
authors.lastname: Kuwar
mesh_terms: D003300:Copper / Q000032:analysis*; D005021:Ethylamines / Q000138:chemical synthesis / Q000737:chemistry*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D008128:Logic; D015394:Molecular Structure; D011720:Pyrazoles / Q000138:chemical synthesis / Q000737:chemistry*; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D015032:Zinc / Q000032:analysis*
chemical_list: C000604609:4-(4-diethylamino)-2-hydroxybenzylidene amino)-1,2dihydro-1,5-dimethyl-2-phenylpyrazol-3-one; D005021:Ethylamines; D005456:Fluorescent Dyes; D011720:Pyrazoles; D003300:Copper; D015032:Zinc
keywords: Cation sensing; Cu(2+); Molecular logic gate; Nanomolar detection; Zn(2+)