Zeta Potential of Proteins

Zeta potential is a key physical parameter that describes surface charge on proteins. Although there has been interest in measuring the zeta potential of proteins for many years, the measurements were often difficult due to a variety of reasons including the “cooking” of proteins on the cell electrodes when using light scattering techniques. This application note presents data from the SZ-100 using cells with unique, patented carbon electrodes that facilitate zeta potential measurements of proteins.