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. 2019 May 7;10:997. doi: 10.3389/fmicb.2019.00997

FIGURE 4.

FIGURE 4

Oxidase-like activity of PdNPs and Pd2+ ions at different concentrations of 2,6-DMP, TMB and ABTS across different pH’s, expressed as the mean ± SD. Columns with different letters [capital letters (A,B,C) show differences between pH’s; lower case (a,b,c) show differences between PdNPs concentration] (ANOVA, p < 0.05, n = 3) ∗∗∗ symbolizes statistically significant differences (p < 0.05), (p < 0.01), and (p < 0.001), respectively.