Dynamically Interchangeable Nanoparticle Superlattices Through the Use of Nucleic Acid-Based Allosteric Effectors
详细信息 查看全文
- 作者：Youngeun Kim ; Robert J. Macfarlane ; Chad A. Mirkin
- 刊名：The Journal of the American Chemical Society
- 出版年：2013
- 出版时间：July 17, 2013
- 年：2013
- 卷：135
- 期：28
- 页码：10342-10345
- 全文大小：246K
- 年卷期：v.135,no.28(July 17, 2013)
- ISSN：1520-5126
文摘
DNA is a powerful tool for programmably assembling colloidal crystals, and has been used to generate nanoparticle superlattices with synthetically adjustable lattice parameters and crystal symmetries. However, the majority of these superlattice structures remain static once constructed, and factors such as interparticle distance cannot be controlled in a facile and rapid manner. Incorporation of these materials into functional devices would be greatly benefitted by the ability to change various aspects of the crystal assembly after the lattice has been synthesized. Herein, we present a reversible, rapid, and stoichiometric on-the-fly manipulation of nanoparticle superlattices with allosteric effectors based upon DNA. This approach is applicable to multiple different crystal symmetries, including FCC, BCC, CsCl, and AlB2.