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Analysis of exosomes collected by different methods. (A,B) NTA analysis of MDA-MB-231 and HT29 exosomes isolated by bead/aptamer system; (C,D) NTA analysis of MDA-MB-231 and HT29 exosomes isolated by size exclusion chromatograph method; (E,F) NTA analysis of MDA-MB-231 and HT29 exosomes isolated by a negative aptamer (CD63-6)-based bead system.
