This provides a plug of protein that is far from the electrode surfaces of the zeta potential cell. A small volume (50μL) of protein is then injected into the bottom of the cell as a plug of sample. A cell is filled with the same buffer that is used as the dispersing medium for the protein sample to be measured. This measurement method uses the standard disposable/reusable capillary zeta potential cells. Measurement of protein samples with a new Diffusion Barrier Method for highly improved results without damaging the protein structure Therefore, it is possible to modify the chemistry of a material substrate and obtain results about the surface activity of surfactants or other formulation materials onto a solid surface.Ģ. The results will provide information about coating surfaces and the interface of a material. This will allow researchers to study the surface of a material and adsorption or desorption processes from that surface. It is now possible to obtain zeta potential measurement of a solid surface using a newly designed cell for the Zetasizer Nano Instrument. Measurement of the zeta potential of a solid surface with the new Surface Zeta Potential Cell
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