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SEM images (a) and cell viability (b) of mBMSCs, HUVECs and NIH3T3 cultured on Ti, Ti-PC/Fe-MPNs, and Ti-PC/Fe@c(RGDfc). Cell cycle experiments in different cells on Ti, Ti-PC/Fe-MPNs, and Ti-PC/Fe@c(RGDfc). Scale bars in (a) are 200 nm. 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.
