Confinement Induced Splay-to-Bend Transition of Colloidal Rods

被引：44

作者：

Dammone, Oliver J. ^{[1
]}

Zacharoudiou, Ioannis ^{[2
]}

Dullens, Roel P. A. ^{[1
]}

Yeomans, Julia M. ^{[2
]}

Lettinga, M. P. ^{[3
]}

Aarts, Dirk G. A. L. ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

[2] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

[3] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 10期

关键词：

Viruses;

D O I：

10.1103/PhysRevLett.109.108303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the nematic phase of rodlike fd-virus particles confined to channels with wedge-structured walls. Using laser scanning confocal microscopy we observe a splay-to-bend transition at the single particle level as a function of the wedge opening angle. Lattice Boltzmann simulations reveal the underlying origin of the transition and its dependence on nematic elasticity and wedge geometry. Our combined work provides a simple method to estimate the splay-to-bend elasticity ratios of the virus and offers a way to control the position of defects through the confining boundary conditions.

引用

页数：5

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