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:
Apr. 22, 2008
Filed:
Aug. 09, 2006
Applicant:
Marco Leona, New York, NY (US);
Inventor:
Marco Leona, New York, NY (US);
Assignee:
The Metropolitan Museum of Art, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/44 (2006.01); G01N 21/65 (2006.01);
U.S. Cl.
CPC ...
Abstract
A new process is presented to non-invasively identify organic dyes in historic textiles and other works of art. A small gel bead loaded with a SERS substrate is used to gently extract microscopic amounts of dyes from works of art, without the need to remove a sample and separately extract the dye by acid hydrolysis of the fiber-mordant-dye system. The gel bead subsequently is coated with a silver, gold or copper colloid or with silver, gold or copper nanoislands, and is examined in accordance with a surface enhanced Raman scattering technique to identify the dye.