Chemical sharpening of gold nanorods:: The rod-to-octahedron transition

被引:114
作者
Carbo-Argibay, Enrique [1 ]
Rodriguez-Gonzalez, Benito [1 ]
Pacifico, Jessica [1 ]
Pastoriza-Santos, Isabel [1 ]
Perez-Juste, Jorge [1 ]
Liz-Marzan, Luis M. [1 ]
机构
[1] Univ Vigo, Dept Quim Fis, CSIC, Unidad Asoc, E-36310 Vigo, Spain
关键词
crystal growth; gold; nanostructures; shape control;
D O I
10.1002/anie.200703259
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Changing faces: The shape of gold nanorods can be finely tuned by controlled growth under sonication in DMF in the presence of poly(vinylpyrrolidone). Reshaping involves the formation of rods with sharp tips and strongly faceted lateral faces, and ultimately leads to perfect, single-crystal octahedrons (see images). Mechanistic considerations indicate a shape-inducing effect of the polymer through different binding interactions for the different faces. (Figure Presented) © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:8983 / 8987
页数:5
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