Fig. 1

Identification of exosomes from plasma. A Electron micrograph of exosomes imaged under transmission electron microscopy (scale bar = 100 nm). B Diameter and C concentration of exosomes as detected using nanoflow cytometry measurement (nFCM). The expression of surface markers D CD9, E CD63, F CD81, and G IgG (as a negative control) was also detected using nFCM