Dynamic light scattering was performed using a Malvern Zetasizer Nano ZS. The system is equipped with a 5 mW He-Ne laser source (633 nm), operating at an angle of 173°. Measurements (42 runs, 25 °C) were made using a disposable Sarstedt® polystyrene cuvette. The mean hydrodynamic diameter of the particles was computed from the intensity of the scattered light using Malvern Zetasizer software (6.12). All measurements were conducted in triplicate.