title: Synthesis and sensor activity of a PET-based 1,8-naphthalimide Probe for Zn(2+) and pH determination.
abstract: A novel blue-emitting 1,8-naphthalimide fluorophore designed as a molecular PET-based probe for determination of pH and detection of transition metal ions in the environment was successfully synthesized. Novel compound was configured on the "fluorophore-spacer-receptor" format. Due to the tertiary amine receptor the novel system showed "off-on" switching properties under the transition from alkaline to acid media (FE = 3.2) and in the presence of Zn(2+) ions (FE = 2.5). The results obtained illustrate the high potential of the synthesized blue-emitting 1,8-naphthalimide fluorophore as an efficient pH chemosensing material and a selective probe for Zn(2+) ions.
authors.affiliation: Department of Organic Synthesis, University of Chemical Technology and Metallurgy, 8 Kliment Ohridsky Bulv, 1756, Sofia, Bulgaria.
authors.forename: Stefan M
authors.initials: SM
authors.lastname: Dimov
authors.forename: Nikolai I
authors.initials: NI
authors.lastname: Georgiev
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Vladimir B
authors.initials: VB
authors.lastname: Bojinov
mesh_terms: D015374:Biosensing Techniques; D004579:Electron Transport; D004583:Electrons; D005456:Fluorescent Dyes / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008027:Light; D009682:Magnetic Resonance Spectroscopy; D015335:Molecular Probes; D015394:Molecular Structure; D053644:Naphthalimides / Q000737:chemistry* / Q000494:pharmacology*; D011522:Protons; D017550:Spectroscopy, Fourier Transform Infrared; D015032:Zinc / Q000032:analysis*
chemical_list: D005456:Fluorescent Dyes; D015335:Molecular Probes; D053644:Naphthalimides; D011522:Protons; D015032:Zinc