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Issue 16, 2018
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Shapes within shapes: how particles arrange inside a cavity

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Abstract

We calculate the configurational entropy of hard particles confined in a cavity using Monte Carlo integration. Multiple combinations of particle and cavity shapes are considered. For small numbers of particles N, we show that the entropy decreases monotonically with increasing cavity aspect ratio, regardless of particle shape. As N increases, we find ordered regions of high and low particle density, with the highest density near the boundary for all particle and cavity shape combinations. Our findings provide insights relevant to engineering particles in confined spaces, entropic barriers, and systems with depletion interactions.

Graphical abstract: Shapes within shapes: how particles arrange inside a cavity

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Article information


Submitted
05 Jan 2018
Accepted
13 Feb 2018
First published
28 Feb 2018

Soft Matter, 2018,14, 3012-3017
Article type
Paper

Shapes within shapes: how particles arrange inside a cavity

D. Wan and S. C. Glotzer, Soft Matter, 2018, 14, 3012
DOI: 10.1039/C8SM00048D

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