Epicocconone-Hemicyanine Hybrids: Near Infrared Fluorophores for Protein Staining and Cell Imaging.
Identifieur interne : 000D19 ( Main/Exploration ); précédent : 000D18; suivant : 000D20Epicocconone-Hemicyanine Hybrids: Near Infrared Fluorophores for Protein Staining and Cell Imaging.
Auteurs : Peter Karuso [Australie] ; Wendy Loa Kum Cheung [Australie] ; Philippe A. Peixoto [France] ; Agathe Boulangé [France] ; Xavier Franck [France]Source :
- Chemistry (Weinheim an der Bergstrasse, Germany) [ 1521-3765 ] ; 2017.
Abstract
The development of new near infrared (NIR) dyes is crucial for diverse applications and especially bioimaging, as they absorb and emit light in the "therapeutic window" (650-950 nm). We report here a new family of NIR fluorophores that has been obtained by hybridising hemicyanines with epicocconone. Emission wavelengths of these hybrid dyes is in the range 715-795 nm and is combined with large Stokes' shifts (75-95 nm). The absorption and emission wavelength can be modulated according to the hemicyanine moiety and adding sulfonic acid moieties enhances water solubility. We demonstrate their application in the sensitive detection of proteins in gel electrophoresis and the staining of specific cellular organelles in confocal microscopy. These results are particularly encouraging and bring forward a new fluorescent skeleton for chemical biology.
DOI: 10.1002/chem.201604698
PubMed: 27859805
Affiliations:
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