ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,769, issued on Oct. 14, was assigned to SOUTHEAST UNIVERSITY (Nanjing, China).
"High-stability surface-enhanced raman scattering nanotag and making method therefor" was invented by Xiangwei Zhao (Nanjing, China) and Ruihua Fei (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nanotag includes a gold core, the gold core is sequentially coated with a silver shell and a gold shell, and a Raman dye is arranged between the silver shell and the gold shell; further it discloses a making method for a high-stability SERS nanotag that includes the following steps: a. adding tetrachloroauric acid into ultrapure water, after boiling, quickly addi...