Sterically Mediated Two‐Dimensional Architectures in Aggregates of Au Nanoparticles Directed by Phosphorothioate Oligonucleotide‐DNA

• DOI: 10.1002/adma.200402004
• Publication Date: 2005-07-26T19:23:46Z
• Authors: L. Jiang; H. Zhang; J. Zhuang; B. Yang; W. Yang; T. Li; C. Sun
• Keywords: Helix (gastropod); Particle (ecology)

Sterically mediated aggregation of gold nanoparticles: 13 nm nanoparticles can be arranged in a hexagonal, square, trigonal, or linear manner (see Figure) two-dimensional (2D) aggregates linked by phosphorothioate oligo-DNA (PS oligo-DNA) different lengths. The steric effect induced the parallel orientation PS helix on particle surface is identified to vital importance controlling 2D architecture particles aggregates. Supporting information for this article available WWW under http://www.wiley-vch.de/contents/jc_2089/2005/c2004_s.pdf from author. Please note: publisher not responsible content functionality any supporting supplied authors. Any queries (other than missing content) should directed corresponding author article.