Interpenetrating Polymer Network Hydrogels Based on Gelatin and PVA by Biocompatible Approaches: Synthesis and Characterization

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.

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