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. 2020 Jul 21;8:847. doi: 10.3389/fbioe.2020.00847

FIGURE 4.

FIGURE 4

Schematic illustration for the construction of 3D tissue-like structures using brick-to-wall technology. Different types of cells were 3D cultured in each DNA hydrogel brick for some time to eliminate poorly viable cells. Thereafter, the excellent self-healing DNA hydrogel was used to splice each brick into the pre-designed structure. Adapted with permission from Wang et al. (2017).