Glass nanopillar arrays with nanogap-rich silver nanoislands for highly intense surface enhanced Raman scattering.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22454295.
- Also identified by DOI 10.1002/adma.201104696.
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Abstract
The enhancement of surface enhanced Raman scattering (SERS) with nanogap-rich silver nanoislands surrounding glass nanopillars at wafer level is reported. High-density hot spots are generated by increasing the number of nanogap-rich nanoislands within a detection volume. The SERS substrate shows a high enhancement factor of over 10(7) with excellent signal uniformity (∼7.8%) and it enables the label-free detection of aqueous DNA base molecules at nanomolar level.
Medical subject headings
- Nanostructures
- Silver
- Spectrum Analysis, Raman