ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,076, issued on June 24, was assigned to Tongji University (Shanghai).

"Application of nano layered double hydroxide in cartilage regeneration and preparation thereof" was invented by Rongrong Zhu (Shanghai) and Liming Cheng (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Application methods of a nano layered double include: applying the nano layered double hydroxide in promoting chondrogenic differentiation of human umbilical cord-derived mesenchymal stem cells, and applying the nano layered double hydroxide in preparing drugs for promoting cartilage regeneration, promoting intervertebral disc repair, or treating intervertebral disc degener...