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. 2020 Feb 14;5:15. doi: 10.1038/s41541-020-0164-y

Fig. 2. Characterization of M. paratuberculosis antigen-containing nanoparticle-based vaccines.

Fig. 2

Scanning electron microscopy images of 20:80 CPTEG:CPH nanoparticles loaded with 2.5% whole cell lysate (a) and 2.5% culture filtrate (b) showed similar spherical morphology and size (~200 nm) as blank nanoparticles (c). Scale bar = 1 μm.