Figure 3

In vitro biocompatibility of the hydrogels. (a) NIH 3T3 cell viability at 24, 48 and 72 h. Values are stated as mean ± SD (n = 5). (b) Gross cell morphology of live and fixed cells using DAPI staining at 24 h and enlarged images shown (c) Cell proliferation by FDA staining at 24 h and enlarged images shown.