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Related Experiment Video

Updated: Apr 15, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

Different mechanisms for dynamical arrest in largely asymmetric binary mixtures.

J Hendricks¹, R Capellmann¹, A B Schofield²

¹Condensed Matter Physics Laboratory, Heinrich-Heine University, Universitätsstr. 1, 40225 Düsseldorf, Germany.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|April 15, 2015

Summary

Adding small spheres to large spheres creates different arrested states, like attractive glass, gel, and asymmetric glass. These transitions depend on particle concentration and dynamics.

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Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Area of Science:

Colloid and interface science
Soft matter physics
Materials science

Background:

Binary colloidal mixtures with large size asymmetry are complex systems.
Understanding dynamically arrested states is crucial for materials design.

Purpose of the Study:

Investigate the formation of dynamically arrested states in large spheres within binary colloidal mixtures.
Characterize transitions between different arrested states as a function of small sphere concentration.

Main Methods:

Confocal microscopy was employed to visualize and analyze particle dynamics.
System volume fraction was maintained constant while varying small sphere concentration.

Main Results:

Observed transitions from fluid to arrested states (attractive glass, gel, asymmetric glass) with increasing small sphere concentration.
Arrested states exhibit varying degrees of dynamical arrest and heterogeneity.
Transitions between arrested states involve melting and reformation through a fluid phase.

Conclusions:

Small sphere concentration dictates the type of dynamically arrested state formed by large spheres.
Dynamically arrested particles form a space-spanning network, distinguishing arrested from fluid states.