Fig. 2
Whole body clearance of the NIR fluorescent Cy7-conjugated BP NPs. 100 µL of 0.1 mg/mL of cy7-conjugated BP NP were injected via the tail vein, and the mice were exposed for 1000 ms (λex: 710–760 nm, λem > 750 nm) using the Maestro in vivo imaging system. Spectrally unmixed, high contrast whole body images were obtained after t = 0 (a), t = 1 week (b), t = 2 weeks (c) and t = 4 weeks (d). Schematic whole body fluorescent clearance (e)