Combined technique based on light scattering for investigation of the colloid’s parameters

Abstract

Abstract The determination of colloid’s parameters is important issue in different fields of science and industry. The purpose of this work is investigation of the physical and dynamical parameters of colloid’s parameters. This paper offers new experimental setup of combined method based on light scattering techniques (dynamic light scattering and electrophoretic light scattering). Distinctive features of these methods are simplicity, informativeness, non-destructiveness and high accuracy of obtained results. Light scattering techniques are based on the correlation function of fluctuations of the intensity of scattered light calculation. The analysis of correlation function allows one to obtain the size distribution, translational diffusion coefficients and the molecular weight of biomolecules. In addition when an electric field is applied, we can determine electrophoretic mobility, zeta potential and the degree of intermolecular interaction directly in the liquid. In this paper, results of different types of colloid’s parameters are presented. The obtained results can be used, for example, in medical application for investigation of aggregation processes of proteins with nanoparticles (gold, magnetic, carbon and others), which may be useful in the diagnosis and treatment of various diseases.