Premium
Blue‐Emitting Electron‐Donor/Acceptor Dyads for Naked‐Eye Fluorescence Detection of Singlet Oxygen
Author(s) -
Kohara Reiko,
Yuyama Kenichi,
Shigeri Yasushi,
Biju Vasudevanpillai
Publication year - 2017
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.201700046
Subject(s) - photochemistry , naked eye , fluorescence , singlet oxygen , chemistry , absorption (acoustics) , acceptor , oxygen , visible spectrum , electron acceptor , electron donor , intramolecular force , materials science , optoelectronics , optics , catalysis , organic chemistry , physics , composite material , condensed matter physics
Singlet oxygen ( 1 O 2 ) and other reactive oxygen species receive great attention in chemistry and biology. Fluorescence sensing is one of the most promising and widely used techniques in the detection of 1 O 2 . Nonetheless, the selectivity and sensitivity of 1 O 2 detection are highly depended on the structure, absorption band, stability and emission color of the fluorogenic sensor. We introduce novel and simple intramolecular electron donor–acceptor dyads that selectively and sensitively emit intense blue light in response to 1 O 2 . The systematic changes in the emission intensity of the sensors allow detection of 1 O 2 by the naked‐eye. Furthermore, the blue‐shifted absorption and blue emission bands of the sensors ensure selective excitation of common photosensitizers using visible light. The sensors are synthesized by a simple and single‐step reaction, which when combined with the exceptionally high stability of the sensors against visible‐light irradiation, makes them promising tools for 1 O 2 detection in chemistry, biochemistry, materials science and the life sciences.