Fig. 1From: Biocompatible exosome-modified fibrin gel accelerates the recovery of spinal cord injury by VGF-mediated oligodendrogenesisCharacterization of BMSC-derived exosomes. A Identification of BMSCs by flow cytometry. B Quantification of positive rates for BMSC surface markers. C A representative TEM image of exosomes. Scale bar, 100Â nm. D Size distribution assessment of exosomes by NTA. E Zeta potential analysis of exosomes by NTA. F Expression of CD63 and CD9 in exosome lysates analysed by Western blotBack to article page