title: Fluorescence of styryl dyes-DNA complexes induced by single- and two-photon excitation.
abstract: The series of novel monomer and homodimer styryl dyes based on (p-dimethylaminostyryl) benzothiazolium residues were synthesized and studied as possible fluorescent probes for nucleic acids detection. Spectral-luminescent and spectral-photometric properties of obtained dyes in the unbound state and in DNA presence were studied. Fluorescence emission induced by two-photon excitation of dye-DNA complexes in aqueous buffer solution was registered. Two-photon absorption cross section values of the studied dyes in DNA presence were evaluated.
authors.affiliation: Physics Department of Kyiv National Taras Shevchenko University, 2 Acad. Glushkova ave. build. 1, 03680, Kyiv, Ukraine.
authors.forename: V P
authors.initials: VP
authors.lastname: Tokar
authors.forename: M Yu
authors.initials: MY
authors.lastname: Losytskyy
authors.forename: V B
authors.initials: VB
authors.lastname: Kovalska
authors.forename: D V
authors.initials: DV
authors.lastname: Kryvorotenko
authors.forename: A O
authors.initials: AO
authors.lastname: Balanda
authors.forename: V M
authors.initials: VM
authors.lastname: Prokopets
authors.forename: M P
authors.initials: MP
authors.lastname: Galak
authors.forename: I M
authors.initials: IM
authors.lastname: Dmytruk
authors.forename: V M
authors.initials: VM
authors.lastname: Yashchuk
authors.forename: S M
authors.initials: SM
authors.lastname: Yarmoluk
mesh_terms: D000818:Animals; D052160:Benzothiazoles / Q000737:chemistry*; D004247:DNA / Q000032:analysis*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D017785:Photons; D013050:Spectrometry, Fluorescence; D013343:Styrenes / Q000737:chemistry*
chemical_list: D052160:Benzothiazoles; D005456:Fluorescent Dyes; D013343:Styrenes; D004247:DNA