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. 2014 Nov 24;9(11):e113477. doi: 10.1371/journal.pone.0113477

Figure 5. Real-time PCR results for relative osteogenic gene expression of rMSCs cultured on TiO2 nanotubes for 7 and 14 days.

Figure 5

Significant differences in relative gene expression between NTAPPJ with different gas sources for the same duration of exposure on TiO2 nanotubes are marked with ‘*’ (p<0.05). Control: untreated TiO2 nanotubes; NP2: TiO2 nanotubes with 2-min nitrogen-based NTAPPJ; NP10: TiO2 nanotubes with 10-min nitrogen-based NTAPPJ; AP2: TiO2 nanotubes with 2-min air-based NTAPPJ; AP10: TiO2 nanotubes with 10-min air-based NTAPPJ.