Current Flow Through Two Dimensional Arrays of Metal Nanoparticles as a Novel Sensor Platform

Abstract

Exposure of nanoparticles of Ag to 2-CEES (2-chloroethyl ethylsulfide, a simulant of the sulfur mustard warfare agent) was found to cause a significant change in the film conduction characteristics that could be used as a sensitive method of detection. Ag nanoparticles deposited onto highly-ordered pyrolitic graphite, glass, and polyethylene substrates were found to form such films. Uptake of 2-CEES was irreversible and cumulative. The sensitivity and cumulative nature make the nanoparticle films most appealing as personal exposure indicators.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2009
Accession Number
ADA515494

Entities

People

  • D. S. Pedersen
  • Shuo Wang

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Classification
  • Detection
  • Detectors
  • Dielectric Polymers
  • Electron Microscopes
  • Electronics
  • Films
  • Graphitic Materials
  • Metallic Nanoparticles
  • Metals
  • Molecules
  • Monomolecular Films
  • Nanoparticles
  • Security
  • Self Assembly
  • Surface Plasmon Resonance
  • Two Dimensional

Readers

  • Geochemistry
  • Nanocomposite Materials Science
  • Thin Film Deposition Science.

Technology Areas

  • Biotechnology