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Recent Articles

Litesizer™ 500: Particle Size Range for Zeta-Potential Measurements

The stability of colloidal dispersions is indicated by zeta potential. For the Anton Paar�s Litesizer�500, 3.8 nm and 100 �m are the minimum and maximum size specifications (diameter) for zeta potential measurements. This article demonstrates the specifications by determining the zeta potential of a lysozyme solution and a polystyrene latex standard.

Using In Situ SEM to Identify and Localize Fabrication Defects in Semiconductors

Using In Situ SEM to Identify and Localize Fabrication Defects in Semiconductors

The number of modern cars being fitted with microelectronic devices is increasing, and integration of these devices has to be highly reliable, posing a major challenge for the automotive sector.

Measuring Particle Size and Zeta Potential of Milk with the Litesizer™ 500

Measuring Particle Size and Zeta Potential of Milk with the Litesizer™ 500

Milk is a mixture of butterfat globules in a liquid solution of minerals, carbohydrates, fat droplets and casein micelles (the largest dissolved component in milk). There are four types of casein micelles varying in diameter from around 100 nm to 200 nm. In this article, Anton Paar’s Litesizer 500 is used to determine the particle size and the zeta potential of skimmed and whole milks. The effect of salt concentration on zeta potential is also studied in detail.

Measuring Particle Size of Vitamin B1 by Dynamic Light Scattering

Measuring Particle Size of Vitamin B1 by Dynamic Light Scattering

Dynamic light scattering (DLS) is a popular method used to define the size of molecules and particles present in a solution or suspension. It is based on the quantification of time-dependent fluctuations in the intensity of the scattered light signals

Determining the Size of Multiple Particles in a Liquid Suspension Using the Litesizer™ 500

Determining the Size of Multiple Particles in a Liquid Suspension Using the Litesizer™ 500

Dynamic light scattering (DLS) is a popular technique to measure particle size in a liquid suspension. The particles experience Brownian or random motion, where speed is directly associated with the particle size. If the particles are smaller, they will move faster.