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Characterization of the starved BMSCs-Evs. A. Schematic illustration of the isolation of starved-BMSCs-Evs. B. TEM image of starved-BMSCs-Evs. C. The particle size distribution of starved-BMSCs-Evs measured by nanoparticle tracking analysis. D. Western blot analysis of sEV-specific surface markers. E. Chondrocyte and BMSCs uptake of PKH26-labelled starved BMSCs-Evs.
