Patrick S. Doyle, PhD , Massachusetts Institute of Technology
The results form this study will aid in the understanding of the structure and rheology of aqueous Laponite® dispersions. Furthermore, the methods used here may also find broader general application to other structured complex fluids and gels. The methods are particularly suitable for analyzing materials that serve different functions at different length scales, and that as a result must have different rheological properties across length scales. Possible examples include the cell cytoskeleton, which provides structural stabil- ity on the length scale of the entire cell, but must also allow macromolecules and vesicles to diffuse within the pores. Finally, the results of this study show that multiple particle tracking can provide insight into the structure of evolving materials, even when the system is inhomogeneous at the probe length scale.