Several factors can influence the surface charges of nanoparticles:
- pH: The pH of the surrounding medium can alter the ionization state of surface groups. - Ionic Strength: The concentration of other ions in the medium can screen the surface charges, affecting their net contribution. - Surface Functionalization: Chemical modifications of the nanoparticle surface can introduce new charged groups or neutralize existing ones. - Type of Nanoparticle: Different materials inherently possess different surface charge properties due to their unique surface chemistry.
