Tag Archives: zeta


Published 5 Sep 2017

What is the zeta deviation?

Zetasizer: What is the zeta potential deviation?   The Malvern Zetasizer software report for zeta potential shows a parameter with the name Zeta deviation. You can see this parameter directly below the mean Zeta potential in the standard Zeta Potential(M)…READ MORE >

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Published 3 Aug 2017

Parenterals: What are lipid emulsions?

Intralipid-Lipid emulsions Lipid emulsions are administered intravenously for a variety of purposes: To help feed patients with temporary difficulty in ingesting food orally For better transport of lipophilic drugs (fat-friendly active ingredient (API) which is not soluble in water) For…READ MORE >

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Published 24 Nov 2015

Diffusion Barrier method – the practical details

How to perform zeta potential measurement with the diffusion barrier method? The diffusion barrier method is particularly suitable for low sample volumes and high ionic strength buffers. The method consists of carefully injecting a “plug” of the sample into a…READ MORE >

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Published 24 Sep 2015

Zeta deviation larger than the mean – how can that be?

How can the zeta deviation be larger than the mean?We recently received a phone call from a customer asking about their zeta potential results: When they are measuring electrophoretic light scattering, the zeta potential value for their sample is 15.4mV and the…READ MORE >

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Published 4 Jul 2013

Canadian Drug Delivery Conference with siRNA and biopolymers

Malvern exhibited at the Canadian Society for Pharmaceutical Sciences Conference on “Personalized Medicine and Individualized Drug Delivery” Earlier in June, we exhibited at the “Personalized Medicine and Individualized Drug Delivery” meeting in Vancouver, British Columbia, Canada. The event was jointly…READ MORE >

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Published 26 Apr 2012

What would the polymer chemist do?

To someone who works on measurements of both polymers and proteins with the Viscotek and Zetasizer instruments, the similarities between the two samples are very clear. Both are made from repeating monomeric units and the function of both is highly…READ MORE >

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