Fig. 1From: Osteocyte-derived exosomes induced by mechanical strain promote human periodontal ligament stem cell proliferation and osteogenic differentiation via the miR-181b-5p/PTEN/AKT signaling pathwayCharacterization of exosomes derived from MLO-Y4 culture supernatants. a Morphology of MLO-Y4-Exosomes identified by TEM (scale bar 100 μm). b Western blotting assay of the surface biomarkers CD63, CD81, and Alix. c Particle size and concentration of MLO-Y4-Exos measured by NTA. d Particle size distribution intensityBack to article page