Patent ID: 9482619
Filing Date: 2016-11-01
CPC Classification: B22F,G01N

Claim Text:
1. A method of preparing a Raman active particle, the method comprising: providing a spherical polystyrene particle; adsorbing a SERS-active material onto the surface of the spherical polystyrene particle by electrostatic adsorption to form a SERS-active nanoparticle; coating the SERS-active nanoparticle with a dissolvable material to form a coated SERS-active nanoparticle; processing the coated SERS-active nanoparticle with a silanizing component to form a mesoporous SiO adding a solvent to dissolve and remove the dissolvable material to obtain a SERS-active nanoparticle within a porous SiO