ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,507, issued on Aug. 11, was assigned to Korea University Research and Business Foundation (Seoul, South Korea).

"Multifunctional magnetic-optical nanoparticles" was invented by Young Keun Kim (Seoul, South Korea), Hong En Fu (Seoul, South Korea) and Thomas Myeongseok Koo (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The method of preparing multifunctional magnetic-optical nanoparticles, includes: preparing magnetic nanoparticle clusters by mixing an oily phase containing magnetic nanoparticles and an aqueous phase containing a cationic surfactant; coating the magnetic nanoparticle clusters with a water-soluble polymer; and prepa...