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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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Publication details

The article was received on 01 Jun 2015, accepted on 18 Jun 2015 and first published on 23 Jun 2015


Article type: Paper
DOI: 10.1039/C5SM01351H
Author version available: Download Author version (PDF)
Citation: Soft Matter, 2015,11, 7250-7256
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    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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