Fluorescence of styryl dyes-DNA complexes induced by single- and two-photon excitation.
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.
Tokar
V P
VP
Physics Department of Kyiv National Taras Shevchenko University, 2 Acad. Glushkova ave. build. 1, 03680, Kyiv, Ukraine.
Losytskyy
M Yu
MY
Kovalska
V B
VB
Kryvorotenko
D V
DV
Balanda
A O
AO
Prokopets
V M
VM
Galak
M P
MP
Dmytruk
I M
IM
Yashchuk
V M
VM
Yarmoluk
S M
SM
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*
D052160:Benzothiazoles; D005456:Fluorescent Dyes; D013343:Styrenes; D004247:DNA