Fig. 1From: Endothelial cell-derived exosomes boost and maintain repair-related phenotypes of Schwann cells via miR199-5p to promote nerve regenerationCharacterization of EC-EXO. A Representative transmission electron microscopy (TEM) images of EC-EXO. Scale bar, 200Â nm (left) and 40Â nm (right). B Particle size distribution of EC-EXO measured by nanoparticle tracking analysis (NTA), inset showing representative exosome images captured from the NTA video frames. C Zeta potential measurements of EC-EXO. D Protein immunoblots of exosomes, including the typical markers (TSG101, CD9 and CD81) and GAPDHBack to article page