Peptide-Assembled Optically Responsive Nanoparticle Complexes

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 biomolecular 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
Aug 01, 2007
Accession Number
ADA474518

Entities

People

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

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Assembly
  • Engineering
  • Manufacturing
  • Materials
  • Military Research
  • Nanomaterials
  • Nanoparticles
  • Nanostructures
  • Plasmonic Nanoparticles
  • Quantum Dots
  • United States
  • Universities

Readers

  • Nanocomposite Materials Science
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Biotechnology
  • Microelectronics
  • Quantum Computing