A new peptide-based method for the design and synthesis of nanoparticle superstructures: Construction of highly ordered gold nanoparticle double helices

被引：0
|
作者：
Chen, Chun-Long [1 ]
Zhang, Peijun [2 ]
Rosi, Nathaniel L. [1 ]
机构：
[1] Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, United States
[2] Department of Structural Biology, University of Pittsburgh School of Medicine, 3501 5th Avenue, Pittsburgh, PA 15260, United States
来源：
Journal of the American Chemical Society | 2008年 / 130卷 / 41期
关键词：
Left-handed gold nanoparticle double helices were prepared using a new method that allows simultaneous synthesis and assembly of discrete nanoparticles. This method involves coupling the processes of peptide self-assembly of and peptide-based biomineralization of nanoparticles. In this study; AYSSGAPPMPPF; (PEPAu); an oligopeptide with an affinity for gold surfaces; was modified with an aliphatic tail to generate C12-PEPAu. In the presence of buffers and gold salts; amphiphilic C12-PEPAu was used to both control the formation of monodisperse gold nanoparticles and simultaneously direct their assembly into left-handed gold nanoparticle double helices. The gold nanoparticle double helices are highly regular; spatially complex; and they exemplify the utility of this methodology for rationally controlling the topology of nanoparticle superstructures and the stereochemical organization of discrete nanoparticles within these structures. Copyright © 2008 American Chemical Society;
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Journal article (JA)
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页码：13555 / 13557
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