ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,423, issued on Jan. 27, was assigned to NATIONAL CHENG KUNG UNIVERSITY (Tainan, Taiwan).
"Food detection system and food detection method" was invented by Chen-Kuei Chung (Tainan, Taiwan), Chung-Yu Yu (Taichung, Taiwan) and Ding-Yan Lin (Tainan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a food detection system including: an extraction equipment, a liquid to be identified, a laser light source, a Raman spectrometer, and a metal-nanoparticle-free surface-enhanced Raman scattering substrate. Without an addition of metal nanoparticles, the surface-enhanced Raman scattering substrate of the present invention has...