title: New fluorescent markers for the red region.
abstract: Two new classes of fluorescent dyes have been developed as labels for the red region of the spectrum: amide-bridged benzopyrylium dyes and carbopyronin dyes. The fluorescence quantum yield ranges from 20 to 90%, the decay time from 1 to 4 ns. The pH- and solvent-dependence of absorption and fluorescence are described in detail. Covalent attachment is possible via activated carboxyl groups.
authors.affiliation: Department of Chemistry, University of Siegen, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Arden-Jacob
authors.forename: J
authors.initials: J
authors.lastname: Frantzeskos
authors.forename: N U
authors.initials: NU
authors.lastname: Kemnitzer
authors.forename: A
authors.initials: A
authors.lastname: Zilles
authors.forename: K H
authors.initials: KH
authors.lastname: Drexhage
mesh_terms: D001549:Benzamides / Q000737:chemistry*; D001578:Benzopyrans / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008956:Models, Chemical; D013050:Spectrometry, Fluorescence / Q000295:instrumentation* / Q000379:methods*
chemical_list: D001549:Benzamides; D001578:Benzopyrans; D005456:Fluorescent Dyes; C028161:4-aminobenzamidopyridine