Programmable Supra-Assembly of a DNA Surface Adapter for Tunable Chiral Directional Self-Assembly of Gold Nanorods

Xiang Lan, Zhaoming Su, Yadong Zhou, Travis Meyer, Yonggang Ke, Qiangbin Wang, Wah Chiu, Na Liu, Shengli Zou, Hao Yan, Yan Liu

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

An important challenge in molecular assembly and hierarchical molecular engineering is to control and program the directional self-assembly into chiral structures. Here, we present a versatile DNA surface adapter that can programmably self-assemble into various chiral supramolecular architectures, thereby regulating the chiral directional “bonding” of gold nanorods decorated by the surface adapter. Distinct optical chirality relevant to the ensemble conformation is demonstrated from the assembled novel stair-like and coil-like gold nanorod chiral metastructures, which is strongly affected by the spatial arrangement of neighboring nanorod pair. Our strategy provides new avenues for fabrication of tunable optical metamaterials by manipulating the directional self-assembly of nanoparticles using programmable surface adapters.

Original languageEnglish
Pages (from-to)14632-14636
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number46
DOIs
Publication statusPublished - Nov 13 2017

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Keywords

  • DNA self-assembly
  • chiroptical activity
  • directional self-assembly
  • nanoparticles
  • plasmonics

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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