Organo-Soluble Chiral Thiol-Monolayer-Protected Gold Nanorods

Abstract

Here, we report the synthesis and characterization of organo-soluble chiral thiol-monolayer-protected gold nanorods. The resulting gold nanorods respectively covered with two opposite enantiomers via the strong covalent Au-S linkage were found to not only be stable in both organic media and solid state, but also show optical activity. Their circular dichroism (CD) spectra exhibited a mirror image relationship, indicating that enantiomeric thiol surfactant on gold surface can produce the corresponding enantiomeric gold nanorods. The densely packed azobenzene thiolmonolayer on gold surface exhibited a photoresponsive behavior upon irradiation with 254 nm light instead of 365nm light, which was found to have an effect on plasmonic absorption of gold nanorods.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2011
Accession Number
ADA578737

Entities

People

  • Augustine Urbas
  • Dingshan Yu
  • Liming Dai
  • Quan Li
  • Yannian Li

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Enantiomers
  • Engineering
  • Hydrophobic Properties
  • Liquid Crystals
  • Materials
  • Materials Laboratories
  • Materials Science
  • Metallic Nanoparticles
  • Mixing
  • Mixtures
  • Monomolecular Films
  • Nanoparticles
  • Optical Properties
  • Quantum Properties
  • Raman Spectra
  • Self Assembled Monolayers
  • Spectra

Fields of Study

  • Chemistry

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Polymer Science and Technology