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Cytocompatibility evaluation of the HA-BP hydrogel with macrophages. (A) Young's modulus of HA and HA-BP hydrogels. (B) Microscopic images of RAW264.7 macrophages cultured on HA and HA-BP hydrogel substrates for 6 days. Scale bar = 200 μm. (C) DAPI/actin staining of macrophages cultured on the HA and HA-BP hydrogels after 6 days of culture. Scale bar = 50 μm. (D) Quantitative results of the Alamar Blue assay obtained on days 1, 3, and 5 of culture.
