File Download
There are no files associated with this item.
SFX Link
- Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
- Ko, Hyunhyub
- Functional Nanomaterials & Devices Lab.
Views & Downloads
Detailed Information
Cited time in 
Cited time in 
Cited time in
Metadata Downloads
Porous substrates for label-free molecular level detection of nonresonant organic molecules
- Author(s)
- Ko, Hyunhyub, Chang, Sehoon, Tsukruk, Vladimir V.
- Issued Date
- 2009-01
- 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.
- Publisher
- AMER CHEMICAL SOC
- ISSN
- 1936-0851
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.