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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Biomater Sci. 2013 Nov 13;2(5):703–709. doi: 10.1039/C3BM60210A

Figure 4.

Figure 4

(a) Schematics of the process to fabricate scaffold-reinforced hydrogels. The microfabricated PEGDA scaffold was placed in a mold, and the pre-gel solution containing GelMA and photoinitiator was added. Subsequent UV-initiated polymerization led to scaffold-reinforced hydrogel formation. (b) GelMA hydrogel at 5 wt% had a weak structural integrity whereas the structural integrity of the scaffold-reinforced GelMA hydrogel at the same concentration was well maintained. (c) SEM image of a cross section of scaffold-reinforced GelMA hydrogel. (Scale bar: 200 μm)