Shape selection in chiral ribbons: from seed pods to supramolecular assemblies

被引：83

作者：

Armon, Shahaf ^{[1
]}

Aharoni, Hillel ^{[1
]}

Moshe, Michael ^{[1
]}

Sharon, Eran ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91905 Jerusalem, Israel

来源：

SOFT MATTER | 2014年 / 10卷 / 16期

基金：

欧洲研究理事会;

关键词：

FORCE;

D O I：

10.1039/c3sm52313f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We provide a geometric-mechanical model for calculating equilibrium configurations of chemical systems that self-assemble into chiral ribbon structures. The model is based on incompatible elasticity and uses dimensionless parameters to determine the equilibrium configurations. As such, it provides universal curves for the shape and energy of self-assembled ribbons. We provide quantitative predictions for the twisted-to-helical transition, which was observed experimentally in many systems, and demonstrate it with synthetic ribbons made of responsive gels. In addition, we predict the bi-stability of wide ribbons and also show how geometrical frustration can cause arrest of ribbon widening. Finally, we show that the model's predictions provide explanations for experimental observations in different chemical systems.

引用

页码：2733 / 2740

页数：8

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