Dynamic Light Scattering (DLS) and Electrophoretic Light Scattering (ELS): The DLS and ELS measurements were conducted on a Zetasizer Ultra Red (Malvern Panalytical) to determine the hydrodynamic diameter and the Zeta potential of the particles, respectively. A dispersion of nanoparticles in Milli-Q water was introduced into a 1 mL Malvern DTS 1070 folded capillary cell using a system of syringe pumps and valves. Three sets of both DLS and Zeta potential measurements were performed.