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Literature DB >> 21990231

Raman-active two-tiered Ag nanoparticles with a concentric cavity.

Jung-Sub Wi¹, Sweta Sengupta, Robert J Wilson, Mingliang Zhang, Mary Tang, Shan X Wang.

Abstract

A two-tiered Ag nanoparticle containing a cavity at the center of each nanoparticle is generated by two simple steps of nano-imprinting and metal vacuum deposition. It enables sub-zeptomole detection of organic molecules and five orders of the dynamic sensing range.

Entities: Chemical Disease

Mesh：

Substances：
Polystyrenes
Silver

Year: 2011 PMID： 21990231 PMCID： PMC3595186 DOI： 10.1002/smll.201101523

Source DB: PubMed Journal: Small ISSN： 1613-6810 Impact factor: 13.281

Keyword Cloud
References

18 in total

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Journal: Nature Date: 2010-03-18 Impact factor: 49.962

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Journal: Nano Lett Date: 2010-11-19 Impact factor: 11.189

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Authors: Sebastian Schlücker
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Authors: S Chen; M Svedendahl; M Käll; L Gunnarsson; A Dmitriev
Journal: Nanotechnology Date: 2009-10-02 Impact factor: 3.874

Raman-active two-tiered Ag nanoparticles with a concentric cavity.

1. Shell-isolated nanoparticle-enhanced Raman spectroscopy.

2. Free-standing optical gold bowtie nanoantenna with variable gap size for enhanced Raman spectroscopy.

3. Composite organic-inorganic nanoparticles (COINs) with chemically encoded optical signatures.

4. Resonance Raman cross-sections and vibronic analysis of rhodamine 6G from broadband stimulated Raman spectroscopy.

Review 5. SERS microscopy: nanoparticle probes and biomedical applications.

6. Ultrahigh sensitivity made simple: nanoplasmonic label-free biosensing with an extremely low limit-of-detection for bacterial and cancer diagnostics.

7. Experimental realization of subradiant, superradiant, and fano resonances in ring/disk plasmonic nanocavities.

8. In vivo tumor targeting and spectroscopic detection with surface-enhanced Raman nanoparticle tags.

9. Measurement of the distribution of site enhancements in surface-enhanced Raman scattering.

10. Sombrero-shaped plasmonic nanoparticles with molecular-level sensitivity and multifunctionality.