Fig. 6

Biodistribution of proteinoid NPs. (a) Blood clearance of Prot.1,2 NPs. 100 μL of Cy7-conjugated Prot.1 and Prot.2 NPs (0.2 mg/mL) were IV injected via the tail vein and blood was drawn at different time intervals, (b) Fluorescence of Cy7-conjugated Prot.1,2 NPs in different organs. Mice were sacrificed 4 h post injection and organs were harvested. (c) Fluorescent signals and brightfield images of Cy7-conjugated Prot.1,2 NPs using the Maestro in vivo imaging system