Fig. 4From: Extracellular vesicles derived from mesenchymal stem cells alleviate neuroinflammation and mechanical allodynia in interstitial cystitis rats by inhibiting NLRP3 inflammasome activationCharacterization of MSC-EVs. A TEM showing that MSC-EVs had a saucer-like structure. Scale bars = 200 nm (left) and 100 nm (right). B Particle size distribution by DLS showing that the majority of MSC-EVs were 80–140 nm in diameter, and the most abundant particle size was 83.97 ± 11.05 nm (n = 6). C Western blot analysis showing that EV protein markers (CD9, CD63, CD81 and ALIX) were enriched in MSC-EVs compared with MSCsBack to article page