首页|Interfacial Reinitiation of Free Radicals Enables the Regeneration of Broken Polymeric Hydrogel Actuators
Interfacial Reinitiation of Free Radicals Enables the Regeneration of Broken Polymeric Hydrogel Actuators
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Living organisms,from plants to animals,have in-spired and guided the design and fabrication of polymeric hydrogels with biomimetic morphology,shape deformation,and actuation behavior.Howev-er,the existing polymeric hydrogels are fragile and vulnerable,which seriously hinders further applica-tion.Therefore,endowing hydrogels with a biomi-metic self-growth property and regenerating the macroscopic shape of hydrogels after they suffer significant damage are highly desirable for the next generation of adaptive biomimetic hydrogels.In-spired by the tail regeneration of geckos,we herein report an efficient and universal strategy of interfa-cial diffusion polymerization(IDP),which can regen-erate the polymeric layer at a solid-liquid interface,thereby growing new hydrogels on the existing hy-drogel layers.Through changing the solvent viscosi-ty and/or monomer type of the hydrogel precursor,diverse new hydrogels have been regenerated to endow the initial hydrogels with additional fluores-cent functions and/or actuating properties.Due to the high efficiency and universality of IDP,an injured hydrogel actuator can be repaired,regenerated,and recovered to its initial condition,even after suffering severe damage such as cutting or piercing.We be-lieve that the regeneration strategy of polymeric hydrogels will inspire the design of biomimetic mate-rials and motivate the fabrication of the next gener-ation of soft robots with adaptive and multifunctional properties.
Key Laboratory of Marine Materials and Related Technologies,Zhejiang Key Laboratory of Marine Materials and Protective Technologies,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201
School of Chemical Sciences,University of Chinese Academy of Sciences,Beijing 100049
Soft Matter Synthesis Laboratory,Institute for Biological Interfaces Ⅲ,Karlsruhe Institute of Technology(KIT),D-76344 Eggen-stein-Leopoldshafen
Institute for Chemical Technology and Polymer Chemistry,Karlsruhe Institute of Technology(KIT),D-76131 Karlsruhe
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国家自然科学基金国家自然科学基金Key Research Program of Frontier Science,Chinese Academy of Sciences中国博士后科学基金Sino-German Mobility Programme王宽诚教育基金financial support of the Helmholtz Association
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