Figure 2.

Adhesion and proliferation of hRPC on PCL and PCL–IPM. PCL–IPM is slightly more hydrophilic than PCL, based on contact angle measurements (a), which may contribute to the increase in adhesive properties (b). IPM incorporation (PCL–IPM), but not coating (PCL + IPM and plastic + IPM), resulted in significant increase of cells adhered to the substrate after 30 min of incubation. IPM incorporation did not affect the inhibitory effect of PCL on proliferation: cell population has not increased in size after 3 or 7 days of culture (c).

hRPC: human retinal progenitor cell; PCL: poly(ϵ-caprolactone); IPM: interphotoreceptor matrix.