Crack formation in Laponite gel under AC fields

Electrochemical Processes in Microfluidics Systems under Ac Electric Fields

Size dependence of tracer diffusion in a laponite colloidal gel.

Using a fluorescence recovery after photobleaching (FRAP) technique, we present measurements of probe diffusion in a colloidal glass-a Laponite suspension. By varying the probe size over 2 orders of magnitude, as well as the concentration of the colloidal glass, we evidence and quantify the deviations of the probe diffusivity from the bulk Stokes-Einstein expectations. These experiments suggest...

Model for cage formation in colloidal suspension of laponite.

In this paper we investigate glass transition in aqueous suspension of synthetic hectorite clay, laponite. We believe that upon dispersing laponite clay in water, the system comprises of clusters (agglomerates) of laponite dispersed in the same. Subsequent osmotic swelling of these clusters leads to an increase in their volume fraction. We propose that this phenomenon is responsible for slowing...

Erythrocyte rouleau formation under polarized electromagnetic fields.

We study the influence of an external electromagnetic field of 1.8 GHz in the formation or disaggregation of long rouleau of identical erythrocyte cells. In particular we calculate the variation of the transmembrane potential of an individual erythrocyte illuminated by the external field due to the presence of the neighboring erythrocytes in the rouleau, and compare the total electric energy of...

Pattern formation in colloidal mixtures under external driving fields

The influence of an external field acting differently on the two constituents of a binary colloidal mixture performing Brownian dynamics is investigated by computer simulations and a simple theory. In our model, one half of the particles (A-particles) are pulled by an external force ~ F (A) while the other half of them (Bparticles) are pulled by an external force ~ F . If ~ F (A) and ~ F (B) ar...