Fig. 4
From: Patterned polymer matrix promotes stemness and cell-cell interaction of adult stem cells
hMSC responses to polymer models. Optical and SEM images of hMSCs on culture models. a SEM on flat PCL. b SEM on 10 × 10 polymer fibers. c Optical on flat PCL. d Optical on 2 × 2 polymer fibers. e Optical on 2 × 3 polymer fibers. f Optical on 10 × 10 polymer fibers. Green = F-actin, Blue = nucleus. Scale bars in fluorescent images are 100 μm