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Effects of (1) Cotyledon-AgNPs and (2) C. orbiculata water extract on the cell viability and growth rate of (A) KMST-6, (B) HaCaT and (C) CHO cells after 24 and 72 h. Each value represents mean ± standard error of the mean (SEM); statistical significance of the C. orbiculata water extract and Cotyledon-AgNPs-treated cells when compared to the untreated cells is indicated with * for p < 0.05, ** p for <0.01, and *** p < 0.001.
