Figure 4.
Confocal microscopy images of actin-stained human dermal fibroblasts encapsulated within 6% w/v PEG-bis-AP/0.36% w/v HA semi-IPNs prepared using HA with molecular weights of 100 kDa (A), 700 kDa (B), 1.0 MDa (C) and 1.5 MDa (D) at 200 μm depth after 7 days culture and corresponding circularity values (E). Scale bar = 100 μm. *=p<0.05 relative to PEG-bis-AP/HA semi-IPN with 100 kDa HA.