pH and Temperature Modulated Aggregation of Hydrophilic Gold Nanorods with Perylene Dyes and Carbon Nanotubes

Abstract

Hydrophilic mercaptosuccinic acid (MSA) monolayer-protected gold nanorods (GNRs) were synthesized. The resulting GNRs encapsulated with biocompatible MSA molecules via covalent Au-S linkages were found to be able to self-aggregate through intermolecular hydrogen bonding. Interestingly, when the hybrid GNRs (MSA-GNR) were mixed with the hydrophilic fluorescent perylene diimide (PDI) molecules and carboxylic acid modified single-wall carbon nanotubes (CNT-COOH) respectively, their aggregation behaviors were pH- and temperature-dependent, which were investigated by UV-vis, fluorescence spectra, and TEM images. The aggregates of MSA-GNR with functional PDI and CNT-COOH were able to combine the properties of each component together through non-covalent interactions, providing insight in developing new multi-functional metal nanocomposites with properties tailored for their practical application.

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 2013
Accession Number
ADA578849

Entities

People

  • Augustine Urbas
  • Chenming Xue
  • Liming Dai
  • Ozgul Birel
  • Quan Li
  • Yuhua Xue

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Advanced Materials
  • Aqueous Solutions
  • Carbon Nanotubes
  • Carboxylic Acids
  • Chemistry
  • Films
  • Fluorescence
  • Fullerenes
  • Hydrophilic Properties
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mixing
  • Molecules
  • Physical Chemistry
  • Spectra
  • Surface Plasmon Resonance

Fields of Study

  • Chemistry

Readers

  • Nanocomposite Materials Science
  • Nanoscale Plasmonic Nanotechnology