Characterization of exosomes using nanoparticle tracking analysis (NTA)
NTA measurements were performed in a flow model using a NanoSight NS300 instrument (Malvern Panalytical, Malvern, United Kingdom) equipped with a 488 nm laser and sCMOS camera module (Malvern Panalytical, Malvern, United Kingdom). Each sample was subjected to NTA at least three times to calculate the mean values. To ensure the accuracy of results, all culture medium samples were identically diluted.