Self-assembly of gold nanorods induced by intermolecular interactions of surface-anchored lipids

Hiroshi Nakashima, Kazuaki Furukawa, Yoshiaki Kashimura, Keiichi Torimitsu

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Surface-modified gold nanorods (Au NRs) with 1,2-dipalmitoyl-sn-glycero-3- phosphothioethanol (DPPTE) were synthesized, and their self-assembled structures on a silicon substrate were observed using a scanning electron microscope (SEM). The Au NR-DPPTE complex formed characteristic one- and two-dimensional self-assemblies induced by intermolecular interactions of surface-anchored lipids via simple drying process. The interparticle distance between neighboring NRs was uniform at around 5.0 nm, which was consistent with the thickness of the lipid bilayer. Furthermore, we observed the anisotropic configurations of the NR complex, preferentially oriented in a lateral or perpendicular fashion, in a two-dimensional assembled structure dependent on the interfacial hydrophilicity or hydrophobicity of the silicon surface.

Original languageEnglish
Pages (from-to)5654-5658
Number of pages5
JournalLangmuir
Volume24
Issue number11
DOIs
Publication statusPublished - 2008 Jun 3
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Fingerprint

Dive into the research topics of 'Self-assembly of gold nanorods induced by intermolecular interactions of surface-anchored lipids'. Together they form a unique fingerprint.

Cite this