Photoswitchable turn-on mode fluorescent diarylethenes: Strategies for controlling the switching response
M. Irie, M. Morimoto
A new type of photoswitchable fluorescent diarylethenes, which have no
fluorophore unit but emit strong fluorescence (Φf ∼ 0.9) in the closed-ring isomers, has been developed. They are sulfone
derivatives of 1,2-bis(2-alkyl-4-methyl-5-phenyl-3-thienyl)perfluorocyclo-
pentenes and 1,2-bis(2-alkyl-1-benzothiophen-3-yl)perfluorocyclopentenes.
By chemical modifications of the structures their switching response was
tuned to meet the requirements for super-resolution fluorescence microscopies.
The water-soluble derivatives have been successfully applied to acquire
super-resolution bioimages using a single-wavelength visible beam.
Bull. Chem. Soc. Jpn., 91, 237-250 (2018)
