ZetaSpin

ZetaMetrix Inc. offers the ZetaSpin, a revolutionary device that uses a rotating disk geometry to measure the zeta potential of a disk-shaped sample. The rotating disk generates a streaming potential in its vicinity. Rotation of typical samples 1 cm in radius at several thousand rpm generates streaming potentials from microvolts to millivolts depending on the solution conductivity. A detailed theory for this system allows the user to deduce the zeta potential of a disk-shaped sample from measurement of the streaming potential.

Invented in 2004 by Dr. Paul Sides and Dr. James Hoggard (patent pending), ZetaSpin provides an alternative to the parallel plate capillary method for determining the zeta potential of planar solids. To learn more about principles underlying the use of ZetaSpin, and to understand the animation above, please visit the theory page. We invite you likewise to visit the other links provided on the left to explore the use of this novel approach. Complete citation information about works referenced throughout the website can be found on the bibliography page.

ZetaMetrix Inc. offers the ZetaSpin for sale. Please contact Dr. Paul Sides for information on availability and price.

This website has been brought to you with the partial support of the National Science Foundation (CTS0338089).