Modelo Físico-Matemático para la Estimación del Tamaño de Partículas en Suspensiones Coloidales de Baja Dilución/Physical-Mathematical Model for Estimating the Particle Size in Low-Diluted Colloidal Suspensions

• Published in: Revista CINTEX Vol. 20; no. 1; p. 53
• Main Authors: Palacioa, J L, Fullaa, M R, Rivera, I E
• Format: Journal Article
• Language: Spanish
• Published: Medellin Institución Universitaria Pascual Bravo 01.01.2015
• ISSN: 0122-350X; 2422-2208

The knowledge of the particles sizes on the order of micrometers or nanometers in suspensions, offers a wealth of information for a wide range of biological and biomedical applications such as the development of biopolymers, evaluation the efficiency of antibiotics and anticancer drugs. These investigations have as common factor the need to estimate the average size of a large number of particles in colloidal suspensions, which is known as turbid media due to its optical characteristics. The methodologies based on Mie scattering are widely used because their implementations are inexpensive in relation to other methods and it is valid only when it considers that the medium is composed of transparent dielectric spherical particles and the suspension is highly diluted. These methods are based on experimental contrast measurements with results of theoretical models of the intensity of light scattered by the medium. In this contribution we present a physical-mathematical model that arises from the application of the model together with the analytical Mie scattering model of photon migration, to estimate the size of particles in turbid media of low dilution.