Fig. 3.

Adhesion of adipose-derived stem cells (ADSCs) on plasma modified scaffolds 24 h after seeding. A) Expression of focal adhesion kinase (FAK) and vinculin assessed by RT-qPCR. Note greater expression of these transcripts on the COOH modified scaffolds (p < 0.05). B) Double staining for vinculin (green) and actin (red); note expression of vinculin in all scaffolds. Nuclei are stained with Dapi (blue). Scale bar: 20 μm. C Scanning electron microscopy images of ADSCs on the different scaffolds; the arrows point to ADSCs spread on the scaffolds Scale bar: 30 μm.