Figure 3: Confocal laser microscopic images of actin cytoskeletons of MSCs on different substrates. Actin cytoskeleton of the cells on (a)-(d) SU8 substrates and (e)-(f) PDMS substrates. Dimensions of groove patterns in each substrate are following; (a) 500 nm, (b) and (e) 1 μm, (c) and (f) 20 μm, and (d) and (g) 50 μm. The scale bars represent 20 μm and the direction of the groove patterns are represented by double arrow headed lines beside of the cells.

figure 3