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Characterization of serum exosomes. (A) The particle sizes of extracted exosomes were evaluated using NaNOZS-90; (B) serum exosomes were analyzed using microscopy and highlighted using black arrows. Scale bar =100 nm; (C) the biomarkers of exosomes (Hsp70 and CD63) were confirmed using Western blotting assay. E, exosomes; EDS, exosome-depleted supernatant.
