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(A) MTT assay for the proliferation of L929 fibroblasts cultured on F-SF scaffolds prepared with BuOH/SF of 1/2 (mono macroporosity) and 1/1 (hierarchical porosity); * and ** denote P < 0.05 and P < 0.01, respectively; N = 4. (B) Fluorescence microscopy images of L929 fibroblasts cultured on F-SF scaffolds. Cells were stained with (4′,6-diamidino-2-phenylindole) for nuclei after culture time of 1 day and 10 days.
