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. Author manuscript; available in PMC: 2021 Jan 13.
Published in final edited form as: Colloids Surf B Biointerfaces. 2019 Feb 21;178:44–55. doi: 10.1016/j.colsurfb.2019.02.037

Figure 3.

Figure 3.

Cell attachment on the substrates. (A) The number of DPSC on PMMA films 16 h after cell seeding. (Seeding density: 3×104 cells.cm−2). Hatched columns represent oxygen plasma treated substrates. Data represent mean ± SD of three replicates, *p < 0.05, **p < 0.01 and ***p < 0.001. Asterisks above the bars represent significance compared to the unpatterned control. n.s.: not significant. (B) SEM micrographs of DPSCs on (i-iv) untreated and (v-viii) oxygen plasma treated substrates on Day 1 (Scale bars: 20 μm, UC: unpatterned control).