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Cell viability tests of MC3T3 proliferation on pristine and 5 wt % BNNS-containing CNF films. The data of triplicate samples represent mean ± deviation. Statistical significance of 0 and 5 wt % BNNS-containing samples and negative control (N.S., not significant, p > 0.05; *, p < 0.05; unpaired t-test).
