Fig. 7.

The intracellular ROS level of different cells cultured in coated or uncoated glass with or without treatment of H₂O₂ was detected by fluorescent staining. (a) The average fluorescence intensity of cells was detected by flow cytometry. (b) Comparison of data from (a). N = 3, no significance noted as "ns," *p < 0.05, **p < 0.01, ***p < 0.001, and ^#p < 0.05, ^##p < 0.01 or ^###p < 0.001 compared with the Control group, using t-test.