Particle size analyzer Litesizer 500

By means of dynamic light scattering sizes and stability of nanoparticles can be determined.

The measurement of dynamics in the sample delivers the hydrodynamic radius of particles in a size range between nanometers up to several micrometers. Exposing the sample to an electric field enables the determination of the particles’ Zeta potential. The equipment can also be used for the detection of static light scattering to generate a Debye plot and calculate the molecular mass.

Determination of:
Size and size distribution
Diffusion coefficient
Zeta potential
Molecular mass

A variety of samples (in solution or dispersion) from proteins over surfactant micelles to inorganic nanoparticles can be measured.

Various cuvettes for DLS: disposable, glass, sealable quartz
Cuvettes for Zeta potential: PS cuvettes

Acknowledgement guidelines

In publications, use of the Somapp Lab facilities might be acknowledged as follows:

'The authors would like to acknowledge use of the Somapp Lab, a core facility supported by the Austrian Federal Ministry of Education, Science and Research, the Graz University of Technology, the University of Graz and Anton Paar GmbH.’