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Live–dead assay of hyaluronic acid (HA)–puramatrix (RADA) hydrogels at 7 days where (a) HA-1, (b) HA-1-RADA-1, (c) HA-1-RADA-5 and (d) HA-1-RADA-10. The green color indicates viable cells and the red color indicates dead cells. Reprinted from Abbasi Aval et al. [101].
