Figure 1
From: Controlled biosynthesis of gold nanoparticles with Coffea arabica using factorial design
Surface response graphs of nanoparticles synthesized with coffee. Max abs (A), FWHM (C) and Max ʎ (E) as a function of pH and Temperature; Pareto charts indicate the variables that were significant in the process for Max abs (B), FWHM (D) and Max ʎ (F). Bars that exceed the vertical line (B,D,F) indicates that the terms are significant (p < 0.05).
