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Cell viability, distribution, and growth of L929 cells in the Gel/SA/dECM hybrid scaffolds and 2D culture condition were both investigated. Live/ dead staining performed at 1 d (A), 4 d (B), and 7 d (C), respectively. Green: live; red: dead; white arrow: cell colonies (scale bar: 500 μm). (D) Viability of L929 grown on scaffolds evaluated by CCK-8 kit. *P<0.05, **P<0.01 represent significant difference between two groups.
