A magnetic self-healing hydrogel

Abstract

A straightforward method to prepare a novel magnetic self-healing hydrogel has been successfully developed.

Characterization and Properties of Hydrogels Made from Neutral Soluble Chitosans

“…Other uses are, e.g., to give a temporary tissue support in cataract surgery or controlled release of various types of drugs and biomolecules [11,12] and in an interesting combination with Fe3O4 affording a magnetic self-healing hydrogel [13][14][15]. The properties of chitosan, physical and biological, have made it a promising candidate for delivery of pharmaceutically active components and as a delivery vehicle for, e.g., vaccines [16,17], gene fragments [18] and micro-RNA [19].…”

Self-healing Hydrogels Based on Dynamic Chemistry and Their Biomedical Applications

“…Hydrogel passes through a channel with an obstacle in themiddle by shape transformation under the assistance of a N45 magnet [36] Fu 等 [37] S: CPS biohybrid, C1: chitosan-silica hybrid, C2: chitosan-PEG xerogel, C3: chitosan monoliths, and C4: porous silica 二醇修饰物作为网络结构交联剂也被证明具有良好的 生物相容性. 同时, 亚胺键的动态化学平衡使得材料具 有多重响应的特性, 可应用于开发多功能智能水凝胶材 料.…”

Functional self-healing materials and their potential applications in biomedical engineering

“…It was recently reported that magnetic Fe 3 O 4 nanoparticles with a carboxyl group on its surface were immobilized in chitosan and then formed hydrogel with telechelic difunctional poly(ethylene glycol) (DF-PEG) via imine bonds [27]. The self-healing performance of the hydrogel relied on the dynamic equilibrium of the bond breaking and reforming in the damaged region.…”