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Increased osteoblast densities on selenium compacts with greater amounts of nanosurface features after 24 h of culturing. (A) Untreated selenium compacts; (B) selenium compacts treated with 1N NaOH for 10 min; and (C) selenium compacts treated with 1N NaOH for 30 min.
Notes: Data = Mean ± SEM; N = 3; *p < 0.05 compared to untreated substrate; **p < 0.05 compared to compacts treated with 1N NaOH for 10 min. ***p < 0.01 compared to compacts treated with 1N NaOH for 30 min.
