BROWSE

Related Researcher

Author's Photo

Ko, Hyunhyub
Functional Nanomaterials & Devices Lab
Research Interests
  • Functional nanomaterials, flexible electronics, electronic skins, wearable sensors

ITEM VIEW & DOWNLOAD

Porous substrates for label-free molecular level detection of nonresonant organic molecules

Cited 81 times inthomson ciCited 84 times inthomson ci
Title
Porous substrates for label-free molecular level detection of nonresonant organic molecules
Author
Ko, HyunhyubChang, SehoonTsukruk, Vladimir V.
Keywords
Explosives detection; Gold nanoparticles; Nanoporous structures; Surface enhanced Raman scattering (SERS)
Issue Date
2009-01
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.3, no.1, pp.181 - 188
Abstract
We report on the design of practical surface enhanced Raman scattering (SERS) substrate based upon 3D alumina membranes with cylindrical nanopores chemically modified with polyelectrolyte coating and loaded with gold nanoparticle clusters. These substrates allow for a molecular-level, label-free detection of common plastic explosive materials (TNT, DNT) down to 5-10 zeptograms or 15-30 molecules and a common liquid explosive (HMTD) down to 1 picogram. Such a sensitive detection of organic molecules by utilizing efficient SERS substrates opens the path for affordable and label-free detection of trace amount of practically important chemical compounds.
URI
Go to Link
DOI
10.1021/nn800569f
ISSN
1936-0851
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
2-s2.0-61849121366.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU