Transitioning DNA-Engineered Nanoparticle Superlattices from Solution to the Solid State

被引:136
作者
Auyeung, Evelyn [1 ]
Macfarlane, Robert J. [2 ]
Choi, Chung Hang J. [2 ]
Cutler, Joshua I. [2 ]
Mirkin, Chad A. [1 ,2 ]
机构
[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
[2] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
关键词
assembly; silica; nanoparticles; DNA; PLASMONIC NANOSTRUCTURES; TRIANGULAR NANOPRISMS; CRYSTALLIZATION; ASSEMBLIES;
D O I
10.1002/adma.201202069
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
DNA-nanoparticle superlattices are transferred to the solid state by silica encapsulation. Whereas these materials previously existed only in solution, this method allows the superlattices to remain stable in formerly inaccessible environments including in common organic solvents and at elevated temperatures. The silica-encapsulated superlattices can be directly imaged by transmission electron microscopy (TEM) where both the lattice symmetries and interparticle spacings are preserved. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:5181 / 5186
页数:6
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