What is the Role of Surface Charge in Nanoparticle Stability?
The surface charge of nanoparticles plays a critical role in their stability. Charged nanoparticles often exhibit enhanced stability in suspension due to electrostatic repulsion, which prevents aggregation. The zeta potential, a measure of the surface charge, is a key parameter in assessing the stability of colloidal dispersions. A high absolute value of zeta potential indicates strong repulsive forces between particles, leading to a stable suspension.
