Quantitative analogy between polymer-grafted nanoparticles and patchy particles

被引：38

作者：

Asai, Makoto ^{[1
]}

Cacciuto, Angelo ^{[2
]}

Kumar, Sanat K. ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA

[2] Columbia Univ, Dept Chem, New York, NY 10027 USA

来源：

SOFT MATTER | 2015年 / 11卷 / 04期

基金：

美国国家科学基金会;

关键词：

BUILDING-BLOCKS; COLLOIDS; SIMULATION; NANOCUBES; PROTEIN; PHASE; CLUSTERS;

D O I：

10.1039/c4sm02295e

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 establish a quantitative analogy between polymer grafted nanoparticles (PGNPs) and patchy nanoparticles (NPs). Over much of the experimentally relevant parameter space, we show that PGNPs behave quantitatively like Janus NPs, with the patch size having a universal dependence on the number of grafts and the ratio of the size of the NPs to the grafted chain size. The widely observed anisotropic self-assembly of PGNP into superstructures can thus be understood through simple geometric considerations of single patch models, in the same spirit as the geometry-based surfactant models of Israelachvili.

引用

页码：793 / 797

页数：5

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