title: Quinoline driven fluorescence turn on 1,3-bis-calix[4]arene conjugate-based receptor to discriminate Fe3+ from Fe2+.
abstract: The synthesis and characterization of a triazole linked quinoline appended calix[4]arene conjugate, L, and its fluorescence turn on receptor property for Fe(3+) have been demonstrated. The selective and sensitive discrimination of Fe(3+) has been shown using fluorescence and absorption titration experiments. The Fe(3+) binding to L has been further shown by ITC and ESI MS. The mode of binding of Fe(3+) by calix[4]arene conjugate has been shown by absorption, (1)H NMR and visual color change and the species were modeled based on DFT computations. The {L + Fe(3+)} has been shown to label cells with fluorescence imaging. Moreover the utility of this conjugate has been demonstrated by the combination logic gate system.
authors: Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
authors: Rakesh Kumar
authors: RK
authors: Pathak
authors: Jayaraman
authors: J
authors: Dessingou
authors: Vijaya Kumar
authors: VK
authors: Hinge
authors: Atul Gajanan
authors: AG
authors: Thawari
authors: Santanu Kumar
authors: SK
authors: Basu
authors: Chebrolu Pulla
authors: CP
authors: Rao
mesh_terms: D047250:Calixarenes / Q000032:analysis*; D002460:Cell Line; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000032:analysis*; D006801:Humans; D007501:Iron / Q000032:analysis*; D008856:Microscopy, Fluorescence; D008958:Models, Molecular; D010636:Phenols / Q000032:analysis*; D011789:Quantum Theory; D011804:Quinolines / Q000032:analysis*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D005456:Fluorescent Dyes; D010636:Phenols; D011804:Quinolines; C121325:calix(4)arene; D047250:Calixarenes; D007501:Iron; C037219:quinoline