Erratum to 'The controlled release of a novel thiolated icariin for enhanced osteoporotic bone regeneration' [Mater. Des. 200 (2021) 109468]. (July 2021) - Luo, Zhaocong; Chen, Xuening; Liu, Minjun; Wang, Yuyi; Li, Dongxiao; Li, Xiangfeng; Xiao, Yumei; Wang, Yan; Zhang, Xingdong