US Patent 7929133 - Nanostructured SERS surface

http://www.freepatentsonline.com/7929133.html

This patent is from Opto Trace Technologies and includes some basic claims toward nanostructured surfaces used in improving the performance of SERS sensors. Claim 1 reads:

1. A sensing device for surface-enhanced Raman spectroscopy (SERS), comprising:

a substrate;

a plurality of nano structures over the substrate, wherein at least one of the nano structures comprises an active SERS nano surface; and

an adsorption layer on the active SERS nano surface.