Peptide-Assembled Optically Responsive Nanoparticle Complexes (Preprint)

Abstract

The design of active nanostructures whose form and properties can be modulated by remote means is an important challenge in nanoscience. Here we report two types of active nanoparticle complexes, with properties controlled by near infrared illumination, resulting from the assembly of photothermally responsive plasmonic nanoparticles with thermally labile bimolecular linkers. Au nanoshells (NS) and quantum dots (QD) are assembled using coiled-coil peptides into NS-NS and NS-QD complexes. Illumination of the NS-NS complexes results in reversible disassembly-reassembly, while illumination of NS-QD complexes results in a large, reproducible modulation of the quantum dot fluorescence without disassembly of the nanoparticle-peptide complex.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2007
Accession Number
ADA473736

Entities

People

  • Felicia Tam
  • Joseph M. Slocik
  • Naomi J. Halas
  • Rajesh R Naik

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Assembly
  • Disassembly
  • Fluorescence
  • Governments
  • Illumination
  • Manufacturing
  • Materials
  • Metallic Nanoparticles
  • Nanoparticles
  • Nanostructures
  • Optical Properties
  • Particle Size
  • Particles
  • Plasmonic Nanoparticles
  • Quantum Dots

Readers

  • Electrochemical Surface Science
  • Nanoscale Plasmonic Nanotechnology

Technology Areas

  • Biotechnology
  • Microelectronics
  • Quantum Computing