Fig. 1

Characterization of isolated exosomes. a TEM image of HEK293T exosomes. Scale bar: 100 nm b TEM image of hADSC exosomes. Analysis of c HEK293T and d hADSC exosome size distribution and particle number by NanoSight. e Characterization of exosomes using western blotting with representative surface markers (CD63, CD81, and CD9). The original data of (A, B) was shown in Fig. S2.