We report a study of the structure of droplets of colloidal gels containing dissolved sodium chloride. The components segregate and form intricate patterns. The salt crystalizes in fractal and multi-fractal dendritic forms which are determined by the material which forms the colloidal gel. Here potato starch, gelatine and carboxymethyl cellulose have been used. The substrate also plays a role in some cases. Photographs and micrographs at different level of magnification are shown.
@article{arxiv.1208.0397,
title = {Aggregation Patterns of Salt Crystalizing in Drying Colloidal Solvents},
author = {Moutushi Dutta Choudhury and Sayanee Jana and Sruti Dutta and Sujata Tarafdar},
journal= {arXiv preprint arXiv:1208.0397},
year = {2012}
}