ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,152, issued on Nov. 18, was assigned to Northwestern University (Evanston, Ill.).

"Molecular entrapment via homopolymer self-assembly" was invented by Evan A. Scott (Evanston, Ill.), Fanfan Du (Evanston, Ill.), Baofu Qiao (Evanston, Ill.) and Monica Olvera de la Cruz (Evanston, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides novel nanostructures comprising solution of PPSU20. Methods of preparing the novel PPSU nanostructures, and applications of such nanostructures are also provided."

The patent was filed on Sept. 22, 2023, under Application No. 18/472,901.

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