ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,452, issued on Feb. 10, was assigned to JIANGSU UNIVERSITY (Zhenjiang, China).

"Superparamagnetism-modified and neutrophil exosome biomimetic vesicle-based biological preparation for drug delivery, and preparation method thereof" was invented by Xu Zhang (Zhenjiang, China), Jiahui Zhang (Zhenjiang, China), Cheng Ji (Zhenjiang, China), Hui Shi (Zhenjiang, China), Wenrong Xu (Zhenjiang, China) and Hui Qian (Zhenjiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a superparamagnetism-modified and neutrophil exosome biomimetic vesicle-based biological preparation for drug delivery, and a preparation method thereof...