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Characteristics of exosomes isolated from peripheral plasma. (A) Representative TEM micrograph of exosomes (scale bar of 100 nm). (B) NTA analysis of exosomes enriched from plasma indicated they were approximately 50–150 nm in diameter. (C) Western blotting showing the protein expression of three positive protein markers (CD9, CD63, and TSG101) and a negative protein marker (GRP94) of exosomes.
