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Fig. 1 | Respiratory Research

Fig. 1

From: Therapeutic effects of adipose-tissue-derived mesenchymal stromal cells and their extracellular vesicles in experimental silicosis

Fig. 1

Ultrastructural analysis of the AD-MSC and EV fraction and nanoparticle tracking analysis of the EV fraction. a, b Transmission electron microscopy demonstrates the presence of bulges on the cell membrane, indicating possible microvesicles in AD-MSCs. c Scanning electron microscopy technique of sequential centrifugation-enriched EV fractions of AD-MSC supernatant shows spherical structures ranging from 50 to 100 nm in diameter and the presence of agglomerates. d Size distribution (diameter) of EVs obtained by nanoparticle tracking analysis. Representation of the average from six different samples, with six different videos taken per sample. Curves indicate two Gaussian fittings, and numbers indicate diameter modes

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