ArticleNature communications2026
A versatile and simple rectangular-topology strategy enables robust hydrogels.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
High‑strength, tough hydrogels are urgently needed for biomedicine and soft robotics, yet single‑network architectures suffer from an inherent trade‑off between mechanical robustness and high water content. Herein, we propose a rectangular topological network (RN) composed of rectangular motifs in a single-network hydrogel via stoichiometric crosslinking of long and short polymer chains. This architecture achieves a high elastic modulus via dense intermolecular hydrogen bonds while maintaining large mesh sizes. Driven by a strain-induced hardening mechanism, the hydrogel achieves a simultaneous increase in strength and toughness. Successful fabrication using two crosslinkers demonstrates broad applicability. A representative PEG‑based RN hydrogel exhibits a Young's modulus of 21.97 MPa, a toughness of 31.04 MJ·m
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