Figure 2: Titration of lyophilized Chitosan/PCL and PCL nanoparticles zeta potential and size according to the pH of the medium. pH changed from 2 to 11 following alkalization with NaOH 0,25 M. A) Chitosan/PCL nanoparticles zeta potential according to pH; B) Chitosan/PCL nanoparticles size according to pH; C) PCL nanoparticles zeta potential according to pH; D) PCL nanoparticles size according to pH.