Shape-Controlled Synthesis of Gold Nanostructures Using DNA Origami Molds

被引：129

作者：

Helmi, Seham ^{[1
]}

Ziegler, Christoph ^{[1
]}

Kauert, Dominik J. ^{[1
]}

Seidel, Ralf ^{[1
]}

机构：

[1] Univ Munster, Inst Mol Cell Biol, D-48149 Munster, Germany

来源：

NANO LETTERS | 2014年 / 14卷 / 11期

基金：

欧洲研究理事会;

关键词：

Metal nanoparticles; seeded growth; DNA metallizaton; DNA nanostructures; plasmonics; NANOPARTICLES; PROTEIN; CATALYSTS; TEMPLATE; GROWTH;

D O I：

10.1021/nl503441v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We introduce a new concept that allows the synthesis of inorganic nanoparticles with programmable shape. Three-dimensional DNA origami nanostructures harboring an internal cavity are used as molds. A small gold nanoparticle within the cavity nucleates solution-based gold deposition leading to mold filling. We demonstrate the fabrication of 40 nm long rodlike gold particles with quadratic cross section and the formation of higher order assemblies of the obtained particles, which is mediated by their DNA shell.

引用

页码：6693 / 6698

页数：6

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