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Cell Counting Kit-8 assay determination of the proliferation of hFOB1.19 cells. The TGF-β1-SF-CS scaffold promoted the proliferation of the hFOB1.19 cell significantly, compared with the SF-CS scaffold after 3 days. Data are expressed as the mean ± standard deviation *P<0.05, vs. the SF-CS group; #P<0.05, vs. the control group. TGF-β1, transforming growth factor-β1; SF, silk fibroin; CS, chitosan.
