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Size distribution and concentration analysis of EVs isolated from MSCs. (a–c) Particle size distribution analysed by (a) d-STORM imaging, (b) TRPS and (c) NTA. (d) Standard curve from DiD-labelled EV dilutions to determine the working range for d-STORM particle count, shown in the boxed area. (e) EV concentration measurements produced by d-STORM and TRPS based approaches. Data represented as mean ± SEM, *p < 0.05 (n = 3).
