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Aluminum Nanocrystals: A Sustainable Substrate for Quantitative SERS-Based DNA Detection.
Tian, Shu; Neumann, Oara; McClain, Michael J; Yang, Xiao; Zhou, Linan; Zhang, Chao; Nordlander, Peter; Halas, Naomi J.
  • Tian S; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • Neumann O; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • McClain MJ; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • Yang X; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • Zhou L; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • Zhang C; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • Nordlander P; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
  • Halas NJ; Department of Chemistry, ‡Department of Physics and Astronomy, §Department of Electrical and Computer Engineering, and ∥Laboratory for Nanophotonics and the Smalley-Curl Institute, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
Nano Lett ; 17(8): 5071-5077, 2017 08 09.
Article en En | MEDLINE | ID: mdl-28664736
ABSTRACT
Since its discovery in the 1970s, surface-enhanced Raman scattering (SERS) has been primarily associated with substrates composed of nanostructured noble metals. Here we investigate chemically synthesized nanocrystal aggregates of aluminum, an inexpensive, highly abundant, and sustainable metal, as SERS substrates. Al nanocrystal aggregates are capable of substantial near-infrared SERS enhancements, similar to Au nanoparticles. The intrinsic nanoscale surface oxide of Al nanocrystals supports molecule-substrate interactions that differ dramatically from noble metal substrates. The preferential affinity of the single-stranded DNA (ssDNA) phosphate backbone for the Al oxide surface preserves both the spectral features and nucleic acid cross sections relative to conventional Raman spectroscopy, enabling quantitative ssDNA detection and analysis.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Óxidos / ADN de Cadena Simple / Nanopartículas del Metal / Aluminio Tipo de estudio: Diagnostic_studies Idioma: En Año: 2017 Tipo del documento: Article
Texto completo
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Óxidos / ADN de Cadena Simple / Nanopartículas del Metal / Aluminio Tipo de estudio: Diagnostic_studies Idioma: En Año: 2017 Tipo del documento: Article