Figure 1. Ultra-high-resolution fluorescence imaging of A549 cells. (A) MTDR staining (50 nM). (B) TPE-IQ-2O (200 nM) staining. (C) Merged image of panels (A) and (B). λex: 650 nm (MTDR) and 488 nm (TPE-IQ-2O); scale bar =10 μm.