Author Archives: Ulf Nobbmann

Why don’t they float to the top? We all know what happens to bubbles in water: They float to the top and disappear, eventually. In a bubbly foam bath, the bubbles are stabilized with surfactants and other ingredients. This extends…READ MORE >

The new ZS Xplorer software is here! Modern, flexible and different from the classic Zetasizer software, the novel ZS Xplorer interface was developed specifically for the latest generation of Zetasizer systems: the Zetasizer Pro and the Zetasizer Ultra. If you…READ MORE >

Join us for the next User group meeting! User Group Meeting Announcement 19 Oct 2018 1pm-4pm EDT We are pleased to announce the first virtual Zetasizer User Meeting ZUM-1! This initiative is an effort to foster the diffusion of knowledge…READ MORE >

Debye Screening – what is it?   In colloidal samples (and this spans the whole range from molecules in solution to particles in a dispersion) the movement of and forces between objects are often governed by the charge affecting neighbors….READ MORE >

How can we obtain the applied field strength? When performing electrophoretic light scattering (ELS) measurements, the sample is exposed to an externally applied electric field, and we observe the extra movement that the particles undergo as a result of the…READ MORE >