Complexity emerges from lattice overlapping: Implications for nanopatterning

被引：13

作者：

He, Yu ^{[1
]}

Ko, Seung Hyeon ^{[1
]}

Tian, Ye ^{[1
]}

Ribbe, Alexander E. ^{[1
]}

Mao, Chengde ^{[1
]}

机构：

[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

SMALL | 2008年 / 4卷 / 09期

基金：

美国国家科学基金会;

关键词：

AFM; DNA; nanopatterning; self-assembly;

D O I：

10.1002/smll.200701051

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A study was conducted to analyze the significance of lattice overlapping for creating complex nanopatterns. The study reported a series of complex nanopatterns that emerge from lattice overlapping of periodic DNA 2D (two dimensional) crystals. The analysis suggests a hierarchical self-assembly approach for nanopatterning, in which case DNA single strands assemble into individual building blocks, they then assemble into simple periodic 2D crystals, and finally the 2D crystals interact with each other to generate complex patterns. The overlapping process is presumably contributed by a combination of electrostatic interactions, steric effects, and DNA-substrate interactions. However, it is also possible to promote overlapping between two different kinds of DNA 2D crystals, which would further increase nanopattern complexities. These DNA patterns also can potentially be used for fabricating nanopatterns out of technologically useful materials such as metals and silicon.

引用

页码：1329 / 1331

页数：3

共 25 条

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