Corrigendum: PPy@Fe3O4 nanoparticles inhibit the proliferation and metastasis of CRC via suppressing the NF-κB signaling pathway and promoting ferroptosis - Yu, Zhilong; Tong, Shanshi; Wang, Chenyi; Wu, Zizhen; Ye, Yingjiang; Wang, Shan; Jiang, Kewei (Frontiers in Bioengineering and Biotechnology, 2023)