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US 7,443,489 B2Granted
Surface enhanced spectroscopy-active composite nanoparticles
AssigneeOxonica Limited
InventorMichael J. Natan
Life of this patent
Estimating the term…
Abstract
Metal nanoparticles associated with a spectroscopy-active (e.g., Raman-active) analyte and surrounded by an encapsulant are useful as sensitive optical tags detectable by surface-enhanced spectroscopy (e.g., surface-enhanced Raman spectroscopy).
Claims23
A method of manufacturing a particle comprising:
- a) associating a spectroscopy-active label with a surface-enhanced spectroscopy (SES)-active metal nanoparticle;
- and
- b) coating said label-associated metal nanoparticle with an encapsulant, wherein said spectroscopy-active label has a measurable SES spectrum and wherein said encapsulant comprises a material selected from the group consisting of glass, polymers, metals, metal oxides, and metal sulfides.
Dependencies are inferred from the claim text.