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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Development of environmentally sensitive fluorescent and dual emissive deoxyuridine analogues
RSC Advances, Volume 5, No. 42, Year 2015
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Description
Ratiometric and environment-sensitive fluorescent dyes present attractive advantages for sensing interactions in DNA research. Here, we report the rational design, synthesis, and photophysical characterization of 2-thienyl-, 2-furyl- and 2-phenyl-3-hydroxychromones bonded to the C-5 position of deoxyuridine. Since these two-color nucleosides were designed for incorporation into ODNs, we also investigated the sensitivity of the ratiometric response to hydration by using acetonitrile/water mixtures and neat solvents. The synthesized 2-thienyl and 2-furyl conjugates were found to exhibit more red-shifted absorption (by 31-36 nm) and emission (by 77-81 nm of the N∗ band), two-fold increased molar absorption coefficients, and dramatically enhanced (by 3-4.5 times) fluorescence quantum yields. Demonstrating a manifold increase in brightness, they preserve the ability of exquisite ratiometric responses to solvent polarity and hydration. This makes the new fluorescent nucleoside analogues highly relevant for subsequent labeling of the major groove in nucleic acids and sensing their interactions. © The Royal Society of Chemistry.
Authors & Co-Authors
Barthès, Nicolas P.F.
France, Nice
Université Côte D'azur
Mély, Yves
France, Illkirch-graffenstaden
Laboratoire de Bioimagerie et Pathologies - Lbp
Benhida, Rachid
France, Nice
Université Côte D'azur
Michel, Benoît Y.
France, Nice
Université Côte D'azur
Burger, Alain C.
France, Nice
Université Côte D'azur
Statistics
Citations: 30
Authors: 5
Affiliations: 5
Identifiers
Doi:
10.1039/c5ra02709h
ISSN:
20462069
Research Areas
Environmental
Genetics And Genomics