Nanoparticle Superlattice Engineering with DNA
Nanoparticle Superlattice Engineering with DNA
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DOI：
10.1126/science.1210493
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发表时间：
2011-10-14
期刊：
影响因子：
56.9
通讯作者：
Mirkin, Chad A.
中科院分区：
文献类型：
--
作者：
Macfarlane, Robert J.;Lee, Byeongdu;Mirkin, Chad A.
纳米粒子超晶格工程目前的一个限制是，被组装的粒子的身份往往决定了可以合成的结构。因此，特定的晶体对称性或晶格参数只能使用特定的纳米颗粒作为构建块来实现（反之亦然）。我们提出了六个设计规则，可用于故意制备九种不同的胶体晶体结构，并控制25至150纳米长度尺度上的晶格参数。这些设计规则概述了独立调整每个相关晶体学参数的策略，包括颗粒尺寸（5至60纳米）、周期性和颗粒间距离。因此，这项工作代表了以可预测的方式合成由纳米级材料组成的可定制宏观结构的进步。
A current limitation in nanoparticle superlattice engineering is that the identities of the particles being assembled often determine the structures that can be synthesized. Therefore, specific crystallographic symmetries or lattice parameters can only be achieved using specific nanoparticles as building blocks (and vice versa). We present six design rules that can be used to deliberately prepare nine distinct colloidal crystal structures, with control over lattice parameters on the 25- to 150-nanometer length scale. These design rules outline a strategy to independently adjust each of the relevant crystallographic parameters, including particle size (5 to 60 nanometers), periodicity, and interparticle distance. As such, this work represents an advance in synthesizing tailorable macroscale architectures comprising nanoscale materials in a predictable fashion.