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US 8,409,863 B2Granted
Nanoparticulate chemical sensors using SERS
AssigneeBecton, Dickinson and Company
InventorsMichael J. Natan, Marcelo Eduardo Piotti
Life of this patent
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Abstract
A system to selectively deliver relatively small analyte molecules of interest to a SERS-active nanoparticle surface while excluding dozens to hundreds of other species in the environment. In particular, the present invention provides a permselective film that renders the particles of interest as viable small molecule optically addressable sensors.
Claims10
A composition of matter comprising:
- a particle having a spectroscopy-active outer region;
- and
- a permselective film associated with at least a portion of the particle which selectively allows for specific molecules to reach the outer region of the particle and produce a spectrum when illuminated.
Dependencies are inferred from the claim text.