Spectroscopic Study of the Interaction of Styrylcyanine Dyes Sbo, Sil and Their Derivatives with Bovine Serum Albumin View Full Text


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Article Info

DATE

2011-03-01

AUTHORS

Eldar N. Kurtaliev

ABSTRACT

The spectral-luminescent characteristics of newly synthesized styrylcyanine dyes on the base of dyes Sbo ((E)-2-(4-(dimethylamino)styryl)-3-methylbenzo[d]oxazol-3-ium iodide) and Sil ((E)-2-(4-(dimethylamino)styryl)-1,3,3-trimethyl-3H-indolium perchlorate) in aqueous solutions without and in the presence of bovine serum albumin (BSA) were studied. It was established that the absorption spectra of dyes Tol-6, Dbo-10 and Dil-10 with increasing amount of BSA appear new bands with λmax = 505 nm, λmax = 512 nm and λmax = 566 nm, respectively, whose intensity increases in proportion to the amount of albumin. The intensity of the glow of the main band of fluorescence in the presence of BSA sharply increases. The binding constant (K) and the number of binding sites (N) of studied dyes with BSA were determined. The dependence of binding constants with BSA on the dipole moment of dye molecules was determined, which indicates that besides electrostatic forces of attraction between molecules styrylcyanine dyes with BSA, hydrophobic interactions are essential. More... »

PAGES

1713-1719

References to SciGraph publications

  • 2006-05. Luminescent spectral properties of rhodamine derivatives while binding to serum albumin in JOURNAL OF APPLIED SPECTROSCOPY
  • 1990-03. MOPAC: A semiempirical molecular orbital program in JOURNAL OF COMPUTER-AIDED MOLECULAR DESIGN
  • 2004-01-01. Fluorescence lifetime imaging (FLIM) of rhodamine 123 in living cells in PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
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    http://scigraph.springernature.com/pub.10.1007/s10895-011-0866-7

    DOI

    http://dx.doi.org/10.1007/s10895-011-0866-7

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1033482797

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/21360296


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