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Hematoxylin-stained cross-sectional images of PCL 100, SF/PCL 2/98, and SF/PCL 6/94 nano/microfibrous composite scaffolds after 5 days of human mesenchymal stem cell (hMSC) culturing.
Notes: Arrows and asterisks indicate the penetrating hMSCs and PCL microfibers, respectively. Original magnification 100×.
Abbreviations: PCL, poly(ε-caprolactone); SF, silk fibroin.
