The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2013
Filed:
Nov. 17, 2009
Michael J. Natan, Los Altos, CA (US);
Richard Griffith Freeman, Mountain View, CA (US);
William E. Doering, Mountain View, CA (US);
Rebecca Stoermer Golightly, Belmont, CA (US);
Michael J. Natan, Los Altos, CA (US);
Richard Griffith Freeman, Mountain View, CA (US);
William E. Doering, Mountain View, CA (US);
Rebecca Stoermer Golightly, Belmont, CA (US);
Cabot Security Materials Inc., Boston, MA (US);
Abstract
A method of detecting melamine which includes providing a quantity of SERS-active particles and mixing the SERS-active particles with a solution containing melamine. The method further includes detecting a surface enhanced Raman spectrum of the melamine. The foregoing method may optionally include aggregating the SERS-active particles. Aggregation may occur before or after the SERS-active particles are mixed with a solution containing melamine. The method of detecting melamine may optionally include concentration of the SERS-active particles. The method may further include mixing a chaotropic agent having a higher affinity for a selected binding site than melamine into the solution containing melamine. The method may further include mixing a quantity of a SERS-active standard having a known SERS spectrum with the solution containing melamine and SERS-active particles. Assay apparatus and systems are also disclosed.