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Fractograms of the evolution of nanoparticles dispersions as function of dilution preparation time for different sizes (a) AuNPs 20 nm, (b) AuNPs 40 nm, (c) AuNPs 60 nm, (d) AuNPs 80 nm, (e) AgNPs 20 nm, (f) AgNPs 40 nm and (g) AgNPs 60 nm.
