Sterically mediated two-dimensional architectures in aggregates of Au nanoparticles directed by phosphorothioate oligonucleotide-DNA

作者：Jiang L; Zhang HX; Zhuang JQ; Yang BQ; Yang WS^*; Li TJ; Sun CC

来源：Advanced Materials, 2005, 17(17): 2066-+.

DOI：10.1002/adma.200402004

Sterically mediated aggregation of gold nanoparticles: 13 nm gold nanoparticles can be arrenged in a hexagonal, square, tirgonal, or linear manner (see figure) in two-dimensional (2D) aggregates linked by phosphorothiote oligo-DNA (PS oligo-DNA) of different lengths . The steric effect induced by the parallel orientation of the PS oligo-DNA helix on the particle surface is identified to be of vital importance in controlling the 2D architecture of the particles in the aggregates.

• 出版日期2005-9-5
• 单位吉林大学