As ζ-potential measurements indicate (Table 1), the NPs were negatively charged. Even if a CCC value could not be obtained, some electrostatic stabilization contribution is expected as indicated by the minor tendency to aggregate (Fig. 4).
As ζ-potential measurements indicate (Table 1), the NPs werenegatively charged. Even if a CCC value could not be obtained, someelectrostatic stabilization contribution is expected as indicated by theminor tendency to aggregate (Fig. 4).