title: A ratiometric near-infrared pH-responsive fluorescent dye based on distyryl BODIPY.
abstract: A novel distyryl boron dipyrromethene substituted with two 4-(dimethylamino)phenylethynyl groups at the 2- and 6-positions has been synthesised and characterised. It exhibits remarkable and reversible pH-responsive changes in the absorption and fluorescence emission spectra, both in organic and in aqueous media.
authors.affiliation: Department of Chemistry and Centre of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
authors.forename: Hui
authors.initials: H
authors.lastname: He
authors.forename: Dennis K P
authors.initials: DK
authors.lastname: Ng