fig2
![Immunoaffinity-enriched salivary small extracellular vesicles in periodontitis](https://image.oaes.cc/1aa188a0-118d-45b4-9779-861483e729a3/evcna4048.fig.2.jpg)
Figure 2. SEC-EVs characterization. (A) TEM analysis (arrows denote SEC-EVs); (B) particle size histogram distribution after NTA analysis; (C) Salivary EV particle number per 300 µL saliva; (D) EV purity was defined as EV particle number per µg protein. TEM: transmission electron microscopy.