Injectable hydrogel with selenium nanoparticles delivery for sustained glutathione peroxidase activation and enhanced osteoarthritis therapeutics.

"Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"The authors are grateful for the funding provided for this study by the Key Programme of 10.13039/501100001809National Natural Science Foundation of China (81930067), Youth Program of National Natural Science Foundation of China (82002316), Chongqing Sports Research Project (B202333), Medical Innovation of Graduate Students in Chongqing (CYB23279), and General Program of 10.13039/501100005230Natural Science Foundation of Chongqing (cstc2019jcyj-msxmX0176). Wenhui Hu: Methodology, Validation, Formal analysis, Investigation, Data curation, Writing – original draft, Writing – review & editing, Visualization. Xuan Yao: Methodology, Validation, Formal analysis, Investigation, Data curation, Writing – original draft, Writing – review & editing, Visualization. Yuheng Li: Supervision, Investigation. Jianmei Li: Investigation. Jing Zhang: Investigation. Zhi Zou: Investigation. Fei Kang: Investigation, Funding acquisition, Writing – review & editing. Shiwu Dong: Supervision, Funding acquisition, Writing – review & editing."