AUTHOR=Xu Zhuoming , Ma Jun , Hu Hanyin , Liu Jintao , Yang Haiyang , Chen Jiayi , Xu Hongwei , Wang Xinyu , Luo Huanhuan , Chen Gang TITLE=Metal ion-crosslinking multifunctional hydrogel microspheres with inflammatory immune regulation for cartilage regeneration JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1540592 DOI=10.3389/fbioe.2025.1540592 ISSN=2296-4185