Figure 6.
(a) Fluorescence imaging of A549 cells after incubating with Cy5-BF3 (19F) (2 μM, 1 h, red); (b) Fluorescence imaging of A549 cells after incubating with Hoechest 33258 (1 μg/mL, 1 min, blue); (c) The overlay of (a,b).
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