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. 2017 Jan 25;8:244–253. doi: 10.3762/bjnano.8.27

Figure 2.

Figure 2

DOE experimental results for adsorption (a) and directional (b) methods. Estimation of the effect on response of HRP/Ab ratio and AuNP probe concentration. The layout displays the response value as percent of the maximal HRP signal at 450 nm. Coefficient of determination of DOE results R2 = 0.9485 (a) and R2 = 0.9768 (b).