Fig. 2
From: Bfra-loaded nanoparticles confer protection against paratuberculosis infection
Cytotoxicity and confocal analysis of Bfra-FITC NPs internalization by macrophages. A Cell viability of RAW264.7 macrophages exposed to Bfra-PLGA NPs after 24 h. B The macrophages were stained with DAPI (tracers for cell nucleus staining) and Bfra was labeled with FITC. Bfra–PLGA NPs were internalized within 6 h and images were visualized at 400 × magnification. Scale Bar: 100 µm