Self‐Healable Materials for Underwater Applications

The development of new advanced materials with self‐healing ability targeting underwater applications is reviewed. This challenging task requires a particular approach of water‐insensitive dynamic chemistries. Among them, the nature‐inspired group of catechol‐based functional materials is widely utilized due to the proof of the success of the mussel byssus on underwater self‐healing and adhesion. Interestingly, self‐healing can be manipulated on demand by incorporating active materials such as redox species or magnetic particles into the matrix of the self‐healing polymer. Finally, the underwater applications of these self‐healing materials, as a proof of concept of some electrochemical and electronic devices are relatively novel at the moment. However, these materials are expected to make a large impact on technologies in the near future.