Fig. 2From: Intra-articular delivery of extracellular vesicles secreted by chondrogenic progenitor cells from MRL/MpJ superhealer mice enhances articular cartilage repair in a mouse injury modela Particle size distribution of extracellular vesicles determined by NTA. b Morphology of extracellular vesicles under TEM. Scale bar, 100 nm. c Exosome-specific CD9, CD63, TSG101, and calnexin proteins measured using western blotting. CBA-EVs, extracellular vesicles derived from CPCs of CBA mice; MRL-EVs, extracellular vesicles derived from CPCs of MRL/MpJ miceBack to article page