Patent ID: 9278855
Filing Date: 2016-03-08
CPC Classification: B05D,B82Y,G01N

Claim Text:
1. A method for fabricating a flexible surface-enhanced Raman spectroscopy substrate comprising the steps of: applying a nanoparticle ink to a flexible substrate having filtering capability for trapping an analyte of interest on said substrate during filtration of a media containing said analyte and comprising a material selected from glass fibers, cellulose fibers and polyimide fibers, and wherein the flexible substrate provides a three dimensional surface having multiple anchoring sites for an analyte molecule, and the nanoparticle ink comprises a liquid vehicle, a plurality of nanoparticles, and a stabilizer; heating the nanoparticle ink and the substrate to a suitable temperature for a period of time to remove the liquid vehicle and at least some of said stabilizer and form fractal aggregates of nanoparticles on the substrate, wherein said heating step is terminated when an amplification of Raman scattering signal of from about 1×10