Fig. 5. Microscopic image of the wound contracture over time for (A1) 1 week and (A2) 2 weeks using PHBV fibers, (B1) 1 week and (B2) 2 weeks using R-Spondin 1 and (C1) 1 week and (C2) 2 weeks using PHBV fibers loaded with R-Spondin 1 (reprinted with permission from Kuppan et al., 2011, Biomacromolecules).