Aggregation-Driven Dual-State Emission for Nanomolar-Level Photodynamic Therapy and Acid-Base/pH Responses in Water.
The coumarin-based fluorophore, 7-(diethylamino-3-(5-(trifluoromethyl)benzo[d]thiazol-2-yl)-2H-chromen-2-one (DTBTC), as synthesized in this work, exhibits excellent potential as a multifunctional photosensitizer for bioimaging and photodynamic therapy. DTBTC enables confocal cellular imaging at an exceptionally low co...