Fig. 1From: Small RNA sequencing and bioinformatics analysis of RAW264.7-derived exosomes after Mycobacterium Bovis Bacillus Calmette-Guérin infectionCharacterization of exosomes by transmission electron microscopy (TEM). The exosome morphology was scanned by TEM. The scale bars represent 1 μm (A), 500 nm (B), 200 nm (C), and 100 nm (D)Back to article page