Characterization of the Scattering and Absorption of Colored Zein Colloids in Optically Dense Dispersions.

ABSTRACT: In this research, we model the color of optically dense colloidal dispersions of dyed and undyed zein particles using results from multiple light scattering theory. These particles, as well as monodisperse silica colloids, were synthesized and characterized to obtain particle properties such as particle size, particle size distribution, refractive index, and absorption spectrum of the dye. This information was used to model the diffuse transmission of concentrated particle dispersions, which was measured using a specially designed variable path length quartz glass cuvette. For the nonabsorbing silica dispersions, a transport mean-free path throughout the visible range was obtained. Results showed a difference of less than 5% from the values calculated with a multiple scattering model using

SUBMITTER: de Boer FY 

PROVIDER: S-EPMC6753648 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature