Fig. 3From: Long-term follow-up and exploration of the mechanism of stromal vascular fraction gel in chronic woundsCharacterization of SVF-gel. a Adipogenic, osteogenic, and chondrogenic differentiation of ASCs were determined by staining intracellular lipid droplets with Oil Red O, staining matrix mineralization with Alizarin red S, and staining glycosaminoglycans with Alcian blue, respectively. Scale bars = 100 μm. b Scanning electron microscopy showed that SVF-gel has dense and neatly arranged extracellular matrix than the normal adipose tissue and decellularized adipose tissue. Scale bars = 100 μmBack to article page