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Issue 37, 2015
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Shape allophiles improve entropic assembly

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Abstract

We investigate a class of “shape allophiles” that fit together like puzzle pieces as a method to access and stabilize desired structures by controlling directional entropic forces. Squares are cut into rectangular halves, which are shaped in an allophilic manner with the goal of re-assembling the squares while self-assembling the square lattice. We examine the assembly characteristics of this system via the potential of mean force and torque, and the fraction of particles that entropically bind. We generalize our findings and apply them to self-assemble triangles into a square lattice via allophilic shaping. Through these studies we show how shape allophiles can be useful for assembling and stabilizing desired phases with appropriate allophilic design.

Graphical abstract: Shape allophiles improve entropic assembly

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Article information


Submitted
01 Jun 2015
Accepted
18 Jun 2015
First published
23 Jun 2015

Soft Matter, 2015,11, 7250-7256
Article type
Paper
Author version available

Shape allophiles improve entropic assembly

E. S. Harper, R. L. Marson, J. A. Anderson, G. van Anders and S. C. Glotzer, Soft Matter, 2015, 11, 7250
DOI: 10.1039/C5SM01351H

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