328763.fig.004a
(a)
328763.fig.004b
(b)
328763.fig.004c
(c)
328763.fig.004d
(d)
328763.fig.004e
(e)
328763.fig.004f
(f)
Figure 4: Fibroblast cellular proliferation of uncross PVA/GE and cross-linked IPN PVA/GE blend after 1 ((a), (d)), 3 ((b), (e)), and 5 ((c), (f)) days using the optical microscope observation.