The Impact of Polyethylene Glycol-Modified Chitosan Scaffolds on the Proliferation and Differentiation of Osteoblasts

Figure 4

(a) Cell number of osteoblast after 1, 5, and 10 days of seeding on CHI-100, CHI-90, and CHI-80 scaffolds. The values represent mean ± standard deviation, n = 4. ^∗indicates p < 0.05; ^∗∗indicated p < 0.001 vs. Day 1 and Day 5. (b) ALP activity of osteoblast after 1, 5, and 10 days of seeding on CHI-100, CHI-90, and CHI-80 scaffolds. The values represent mean ± standard deviation, n = 4. ^∗indicates p < 0.05; ^∗∗indicated p < 0.001 vs. Day 1 and Day 5.

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(b)