Fig. 2From: Regulating the production and biological function of small extracellular vesicles: current strategies, applications and prospectsEnhanced production and cardiac-repair capability of exosomes derived from hypoxic-conditioned MSCs [78]. a Cup-shaped morphology of purified exosomes assessed by transmission electronic microscope. b Size distribution of exosomes. c Exosomal markers assessed by Western blotting. d Number of exosome particles assessed by nanoparticle tracking analysis (NTA). e Schematic representation of the effects and mechanisms of hypoxic-MSCs derived exosomes for cardiac repair after myocardial infarction. All images are reproduced with permission from Zhu et al. [78]. Copyright © 2018 Taylor & Francis. All rights reservedBack to article page