Janus Colloidal Matchsticks

被引：76

作者：

Chaudhary, Kundan ^{[1
,2
]}

Chen, Qian ^{[1
,2
]}

Juarez, Jaime J. ^{[1
,2
]}

Granick, Steve ^{[1
,2
,3
,4
]}

Lewis, Jennifer A. ^{[1
,2
]}

机构：

[1] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA

[2] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[4] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 31期

关键词：

Gold coatings - Silica - Electric fields;

D O I：

10.1021/ja305067g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We fabricated chemically and shape-anisotropic colloids composed of silica rods coated with gold tips using a multistep process involving electric-field alignment and crystallization, microcontact printing, and selective metallization. Through direct observation, we found that these "Janus matchsticks" self-assemble into multipods (bi-, tri-, and tetrapods) of varying coordination number and patch angle in aqueous solution.

引用

页码：12901 / 12903

页数：3

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