Zeta potential reflects the electrical charge on the surface of nanoparticles, which influences the repulsion or attraction between them. A higher absolute value of zeta potential (positive or negative) generally indicates greater stability of the nanoparticle suspension. Conversely, a low zeta potential can lead to aggregation or flocculation, which can detrimentally affect the performance of nanomaterials in applications like drug delivery, catalysis, and sensor technology.
