Figure 3

The result of hMSC proliferation assays performed on the surfaces onto which three different types of bFGF-His were immobilized by chelation. As a control, hMSCs were cultured on a Ni(II) chelated surface lacking immobilized bFGF-His. The assays were preformed 6 days after cell seeding. Data are expressed as the mean ± standard deviation for n = 4. Asterisks indicate significant difference compared with control (Student’s t-test, p < 0.05).