Figure 1From: Serum-derived exosomes from non-viremic animals previously exposed to the porcine respiratory and reproductive virus contain antigenic viral proteins Characterization of porcine serum-derived exosomes sera by different methodologies. Bradford and flow cytometry analyses (A), nanoparticle tracking analysis (B), cryo-electron microscopy (C) and SDS-PAGE/Silver Staining (D) are represented. MFI: Median fluorescence unit, mg/mL: Bradford measure unit, M: Molecular weight marker, F6-F9: Fraction number from SEC and percentage (%) size distribution (nm).Back to article page