Figure 6.
Plots of catalytic constant (kcat) versus zeta potential for the different nanoparticle products, with ABTS (Curve A) or TMB (Curve B) as the substrate. Zeta potentials were derived from Table 1. For an ABTS substrate, kcat increases rapidly with increasing zeta potential. In a much less pronounced manner, kcat decreases with increasing zeta potential for a TMB substrate.