Pattern Formation in a Drying Drop of Starch Gel with Sodium Chloride
Soft Condensed Matter
2012-04-03 v1
Abstract
A drop of aqueous potato starch gel with a certain mole fraction of NaCl, when dried on a glass slide, exhibits strong segregation and intricate pattern formation phenomena. The salt forms radial dendritic crystalline aggregates near the centre, with the starch separating out in the form of a transparent band at the periphery. Photographs and micrographs show a series of concentric rings with different texture.
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@article{arxiv.1204.0118,
title = {Pattern Formation in a Drying Drop of Starch Gel with Sodium Chloride},
author = {Moutushi Dutta Choudhury and Sayanee Jana and Sruti Dutta and Sujata Tarafdar},
journal= {arXiv preprint arXiv:1204.0118},
year = {2012}
}
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