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Zeta potential is a measure of the magnitude of the electrostatic or charge repulsion/attraction between particles, and is one of the fundamental parameters known to affect stability. Its measurement brings detailed insight into the causes of dispersion, aggregation or flocculation, and can be applied to improve the formulation of dispersions, emulsions and suspensions.

Speed of introduction of new formulations is the key to product success. Measurement of zeta potential is one of the ways to shorten stability testing by reducing the number of candidate formulations, hence reducing the time and cost of testing as well as improving shelf life.

In water treatment, monitoring dosage using zeta potential measurements can reduce the cost of chemical additives by optimizing the dosage control.

The measurement of zeta potential has important applications in a wide range of industries including; ceramics, pharmaceuticals, medicine, mineral processing, electronics and water treatment.

Malvern Instruments offer leading instrumentation for the measuring of zeta potential, or electrophoretic mobility. The Zetasizer Nano provides a simple, fast and accurate way to measure zeta potential, and uses a unique disposable capillary cell to ensure that there is no cross contamination between samples. The NanoSight NS500 measures electrostatic potential particle-by-particle to produce number-weighted, not intensity-weighted, data, avoiding any bias towards larger particles.

Related products

Zetasizer range The worlds most widely used system for nanoparticle, colloid and protein size, zeta potential and molecular weight measurements. Image
Measurement
Molecular size, Particle size, Molecular weight, Zeta potential
Temperature range
Particle size range
Dispersion type
Wet
Technology
Dynamic Light Scattering, Static Light Scattering, Size Exclusion Chromatography, Electrophoretic Light Scattering
More information
NanoSight NS500 With integrated fluidics for automation. Image
Measurement
Particle size, Particle concentration, Protein aggregation, Zeta potential
Particle size range
10nm to 2000nm
Technology
Nanoparticle Tracking Analysis, Electrophoretic Light Scattering
More information
 
 

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How to characterize and optimize inkjet inks Part 2 Webinar - Recorded (English)

Achieving product stability is a critical aspect of ink formulation. Modern inks are typically colloidal suspensions of multiple components in an organic or aqueous continuous phase. The functionality of the finished product relies on maintaining sus...

Date recorded:
October 21 2014
Language:
English

Keywords: English Rheology and viscosity Zeta potential Pigments and toners Paints, inks and coatings Webinar - Recorded Eastern Time 

Zeta potential measurements of high conductivity colloidal samples Application Note (English)

The diffusion barrier technique can be used for any colloidal sample with high conductivity. This application note discusses the application of the diffusion barrier technique to high conductivity samples through the measurement of various liposome s...


Keywords: Nanoparticles English Application Note Zeta potential Electrophoretic Light Scattering Specialty chemicals Colloids Liposomes and micelles Zetasizer Nano Z Zetasizer Nano ZS Zetasizer Nano ZS90 Zetasizer Nano ZSP 

How good is on-line zeta-potential measurement in water treatment? Article (English)

In this article we look at what zeta potential is and the potential role that on-line zeta potential monitoring can play in optimizing the water treatment process, specifically flocculation control. The applicability of zeta potential is illustrated ...


Keywords: English Article Zeta potential Electrophoretic Light Scattering Energy and environment Water treatment Zetasizer Nano range 

Water treatment - Optimize coagulant dosing using zeta potential Webinar - Recorded (English)

Measure of particle charge is one of the key parameters used by water plant operators to evaluate the required amount of coagulant. This presentation discusses the use of zeta potential measurement and it's advantages as an absolute and s...

Product:
Zetasizer Nano Z,Zetasizer Nano ZS,Zetasizer Nano ZS90,Zetasizer Nano ZSP
Date recorded:
August 14 2014
Language:
English

Keywords: English Zeta potential Electrophoretic Light Scattering Energy and environment Water treatment Webinar - Recorded Eastern Time Zetasizer Nano Z Zetasizer Nano ZS Zetasizer Nano ZS90 Zetasizer Nano ZSP 

Characterization of hydrodynamic changes upon cation-binding to proteins Application Note (English)

Cations are specifically recognized by numerous proteins. Despite their small size, their specific interactions with highly charged residues allow them to induce significant conformational changes on their binding proteins. The protein conformational...


Keywords: English Application Note Molecular size Molecular weight Zeta potential Electrophoretic Light Scattering Size Exclusion Chromatography Viruses and vaccines Zetasizer Nano ZS Proteins Protein mobility Biological drug characterization and development Viscotek TDAmax Viscotek TDA 305 
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