Related Experiment Video
Updated: Jun 11, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
Published on: May 20, 2014
Oppositely charged model ceramic colloids: numerical predictions and experimental observations by confocal laser
M A Piechowiak1, A Videcoq, F Rossignol
1SPCTS, UMR 6638, ENSCI, CNRS, Centre Européen de la Céramique, 12 rue Atlantis, 87068 Limoges Cedex, France.
Abstract:
Fluorescent silica and alumina-like spherical particles with almost equal sizes are synthesized. Dilute aqueous suspensions are prepared with various ratios of those colloidal particles that exhibit opposite surface charges. These suspensions undergo heteroaggregation for a wide range of compositions. The structure of the formed aggregates is analyzed by means of confocal microscopy. The experimental results are compared to those of Brownian dynamics simulations in which the interactions between colloids are modeled by the DLVO potential. Good agreement between experiments and simulations is obtained.
Related Concept Videos
Confocal Fluorescence Microscopy
Colloids and Suspensions
Colloids
Colloidal precipitates
The Colloidal State

