Tubulation and Aggregation of Spherical Nanoparticles Adsorbed on Vesicles

被引：140
|
作者：
Bahrami, Amir Houshang [1 ]
Lipowsky, Reinhard [1 ]
Weikl, Thomas R. [1 ]
机构：
[1] Max Planck Inst Colloids & Interfaces, Dept Theory & Biosyst, D-14424 Potsdam, Germany
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 18期
关键词：
MEMBRANE INCLUSIONS; FLUID; PARTICLES; FORCES;
D O I：
10.1103/PhysRevLett.109.188102
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
How nanoparticles interact with biomembranes is central for understanding their bioactivity. In this Letter, we report novel tubular membrane structures induced by adsorbed spherical nanoparticles, which we obtain from energy minimization. The membrane tubules enclose linear aggregates of particles and protrude into the vesicles. The high stability of the particle-filled tubules implies strongly attractive, membrane-mediated interactions between the particles. The tubular structures may provide a new route to encapsulate nanoparticles reversibly in vesicles.
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页数：5
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