Fig. 2
From: BMSC exosome-enriched acellular fish scale scaffolds promote bone regeneration
Characterization of decellularized fish scale. (a) The schematic diagram of FS before and after decellularization. (b-d) The morphology and histological staining of the FS before and after decellularization. Scale bar was 1 mm (b) and 100 μm (c, d). (e, f) SEM images of the ridges and spikes region of FS after decellularization. Scale bar was 100 μm (left panel) and 1 μm (right panel)