Fig. 1From: Extracellular vesicles from hydroxycamptothecin primed umbilical cord stem cells enhance anti-adhesion potential for treatment of tendon injuryIdentification and characterization of extracellular vesicles (EVs). a Representative electron microscopic image of isolated EVs. b NTA analysis showing the size distribution of EVs. c Western blotting (WB) analysis of extracellular markers, including CD9, CD63, ALIX, calnexin, and TSG101. d PKH67 staining showing the cellular uptake of EVsBack to article page