Fig. 1From: Bovis Bacillus Calmette–Guerin (BCG) infection induces exosomal miRNA release by human macrophagesExosome characterization by scanning (SEM) and transmission electron microscopy (TEM) and nanoanalyzer. Exosomes were isolated by total exosome isolation reagents and passed twice through a 0.22 mm filter before being analyzed for morphology by SEM (a) and TEM (b). The size distribution of the isolated exosomes was further analyzed by nanoanalyzer (c) and showed the size distribution of the exosomes as 70 ± 3.4 nm. The results are representative of three independent experimentsBack to article page