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作者：Xinkai Li1 Yuyan Wang2 Xinxing Zhang1
關鍵字：biomimetic ordered structure, functionalization, interfacial dynamic bonding, mechanical strengthening, self-healing materials
論文來源：期刊
發表時間：2024年

The capacity of biological tissues to undergo self-healing is crucial for the

performance of functions and the continuation of life. Conventional intrinsic

self-healing materials demonstrate analogous functionality depending on the

dissociation-recombination of reversible bonds with no need of extra repair

agents. However, the trade-off relationship between mechanical strength and

self-healing kinetics in intrinsic self-healing systems, coupled with the lack

of additional functionality, restricts their service life and practical applica-

tions. Diversified highly ordered structures in organisms significantly affect

the energy dissipation mechanism, signal transmission efficiency, and molec-

ular network reconstruction capability due to their multi-dimensional differ-

entiated macroscopic composite constructions, microscopic orientation tex-

tures, and topologies/bonding types at molecular level. These architectures

exhibit distinctive strengthening mechanisms and functionalities, which pro-

vide valuable references. This review aims at providing the current status

of advanced intrinsic self-healing materials with biomimetic highly ordered

internal micro/nanostructures. Through highlighting specific examples, the

classifications, design inspirations, and fabrication strategies of these newly

developed materials based on integrating dynamic interactions with ordered

nano/microstructures are outlined. Furthermore, the strengthening and self-

healing balance mechanisms, structure–functionalization relationships, and

potential application values are discussed. The review concludes with a per-

spective on the challenges, opportunities, and prospects for the development,

application, and promotion of self-healable materials with bio-like ordered

architectures.