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. Author manuscript; available in PMC: 2018 Mar 12.
Published in final edited form as: Technology (Singap World Sci). 2017 Oct 17;5(4):185–195. doi: 10.1142/S2339547817500091

Figure 4. Free-Form Fabrication and Spatial Resolution of CMA Hydrogels, Lyophilized Scaffolds, and Rehydrated Scaffolds (a–e).

Figure 4

(a) Photomask used to photopattern macroscale, customized CMA hydrogels. (b) Representative photopatterned hydrogel exhibited accurate pattern fidelity in comparison to the photomask. (c,d) CMA hydrogels can be further processed: hydrogels can be frozen and freeze-dried to create sponges and can be rehydrated as sponges and retain pattern fidelity. (e) The CMA hydrogel had the most accurate pattern fidelity compared to the photomask, and there were no significant differences in area between the samples. The area of the lyophilized and rehydrated scaffolds was statistically smaller than the photomask and hydrogel (*p < 0.05). Scale bar = 5 mm (a–d). Error bars are ± s.d.