Highly sensitive, uniform, and reproducible surface-enhanced Raman spectroscopy from hollow Au-Ag alloy nanourchins.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 24449036.
- Also identified by DOI 10.1002/adma.201305106.
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Abstract
A hierarchical nanoparticle strategy to simultaneously gain super Raman signal amplification, high uniformity, and reproducibility is presented. Using hollow Au-Ag alloy nanourchins, an ultrahigh sensitivity, e.g., down to 1 fM concentrations for DEHP molecule is obtained. A small standard deviation of <10% is achieved by simply dropping and evaporating sub-100 nm nanourchins onto a substrate.
Medical subject headings
- Alloys
- Gold
- Metal Nanoparticles
- Silver