title: Selective interactions of trivalent cations Fe³⁺, Al³⁺ and Cr³⁺ turn on fluorescence in a naphthalimide based single molecular probe.
abstract: Synthesis and fluorescence turn-on behavior of a naphthalimide based probe is described. Selective interactions of trivalent cations Fe(3+), Al(3+) or Cr(3+) with probe 1 inhibit the PET operating in the probe, and thereby, permit the detection of these trivalent cations present in aqueous samples and live cells. Failure of other trivalent cations (Eu(3+), Gd(3+) and Nb(3+)) to inhibit the PET process in 1 demonstrates the role of chelating ring size vis-à-vis ionic radius in the selective recognition of specific metal ions.
authors.affiliation: Organic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India.
authors.forename: Subramaniyan
authors.initials: S
authors.lastname: Janakipriya
authors.affiliation: Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India.
authors.forename: Narendra Reddy
authors.initials: NR
authors.lastname: Chereddy
authors.affiliation: Biomaterials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India.
authors.forename: Purnasai
authors.initials: P
authors.lastname: Korrapati
authors.affiliation: Organic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India. Electronic address: thennarasu@gmail.com.
authors.forename: Sathiah
authors.initials: S
authors.lastname: Thennarasu
authors.affiliation: Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar Chennai 600020, India. Electronic address: abmandal@hotmail.com.
authors.forename: Asit Baran
authors.initials: AB
authors.lastname: Mandal
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D002412:Cations; D002478:Cells, Cultured; D002857:Chromium / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004583:Electrons; D006801:Humans; D007501:Iron / Q000737:chemistry*; D008027:Light; D008968:Molecular Conformation; D015335:Molecular Probes / Q000737:chemistry*; D053644:Naphthalimides / Q000737:chemistry*; D012996:Solutions; D013050:Spectrometry, Fluorescence; D013997:Time Factors
chemical_list: D002412:Cations; D015335:Molecular Probes; D053644:Naphthalimides; D012996:Solutions; D002857:Chromium; D000535:Aluminum; D007501:Iron
keywords: Fluorescence turn-on; Live cell imaging; Naphthalimide derivative; PET inhibition; Trivalent cations