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. 2019 Nov 1;14:8603–8610. doi: 10.2147/IJN.S218988

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© 2019 Wei et al.

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Characterization of exosomes: the representative TEM image of blank exosome (A) and exosome-doxorubicin (B). Size distributions of blank exosome (C) and exosome-doxorubicin (D) based on NTA measurements. The peak diameters were at 112.4 nm for free exosome and 152.7 nm for exosome-doxorubicin. (E) Particle size by nanoparticle tracking analysis for MSCs-derived exosomes during storage at −20 °C.