Robust magnetic double-network hydrogels with self-healing, MR imaging, cytocompatibility and 3D printability

Herein, we have fabricated a novel robust self-healing magnetic double-network hydrogel by multiple interactions between bondable magnetic Fe3O4 and chitosan-polyolefin matrix, and the hydrogel also exhibits excellent magnetogenic effect and MR imageability. The practical potential of the magnetic double-network hydrogel is further revealed by their 3D-printing performance.