Figure 3: Fibroblast cellular proliferation of PVA, GE, uncross PVA/GE, and cross-linked IPN PVA/GE blend after 3 cycles and 1, 3, and 5 days using the MTT assay. Standard errors were expressed in the bar diagram. Media at 100% were used as a control and optical density (OD) corresponded to the cell survivability after 1, 3, and 5 days.