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. Author manuscript; available in PMC: 2013 Nov 11.
Published in final edited form as: Adv Mater. 2012 Dec 10;25(8):10.1002/adma.201200285. doi: 10.1002/adma.201200285

Figure 3.

Figure 3

(A) Phase images of structural hydrogel assemblies. Scale bar is 500 µm. (B) Assembled hydrogels with FITC-dextran and Rhodamine B. Green and red labeled hydrogels were assembled indicating control over the assembled constructs. (C) Hydrogels can be magnetically directed to form 3D constructs. These multi-layer 3D constructs were fabricated by stacking layers. Merged fluorescent image of layer-by-layer 3D assembly (First layer of gels were stained with Rhodamine-B; second layer of gels were stained with FITC-dextran; third layer of gels were stained with Rhodamine-B). (D) Assembled hydrogels of a complex shape. (E) Celtic-shaped patterning chamber and a penny. Each well is a reservoir for red, blue, or green hydrogels. Linear shape assembled hydrogels with red gel at the front (F), in the middle (G), at the back (H). The black rectangle marks the assembly location (zoomed images after assembly in F, G, and H). Scale bar is 1 mm for (C–H).