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. 2015 Nov 12;10:7031–7044. doi: 10.2147/IJN.S90343

Figure 6.

Figure 6

ALP activity assay.

Notes: (A, B) ALP staining of hPDLSCs cultured on control HA (A) and mnHA (B) for 7 days. The circular insets show ALP staining of the whole disks; and the magnification of A and B is 10. (C) ALP activity quantitative analysis of hPDLSCs cultured on control HA and mnHA for 4 and 7 days. *P<0.05.

Abbreviations: ALP, alkaline phosphatase; hPDLSC, human periodontal ligament derived stem cell; HA, hydroxyapatite; mnHA, micro-nano-hybrid surface; pNP, p-nitrophenol.