1300740-62-8Relevant articles and documents
A highly fluorescent cationic bifunctional conjugate
Yang,Chai,Zhu,Yang,Xu
, p. 7806 - 7812 (2012)
It was of crucial importance to modify perylene-3,4,9,10-tetracarboxylic acid bisimides (PBIs) for the design of new perylene-based bio-dye agents with strong fluorescence. Recently, we reported that ethanolamine (EA)-functionalized poly(glycidyl methacrylate) (or PGEA) can produce good transfection efficiency, while exhibiting very low toxicity. Herein, the low-toxic PGEA was proposed to be conjugated with PBIs via facile atom transfer radical polymerization for the well-defined highly fluorescent cationic bifunctional conjugate (PBI-PGEA). The obtained PBI-PGEA exhibited good water-solubility properties, characteristic spectroscopic patterns of PBIs, and excellent photostability. The PBI-PGEA conjugate can be used as an efficient cell bio-dye for rapid (2-5 min) cell labeling at low concentrations (0.06-0.12 mg mL-1). Such a fast labeling process did not induce obvious cytotoxicity, avoiding possible side-effects to the cells. In addition, the PBI-PGEA still possessed good gene transfection efficiency in different cell lines. With the strong fluorescence in water and good transfection properties, the developed bifunctional PBI-PGEA should possess more potential in bioimaging and gene delivery.