ArticleScience advances2025
Salt-welding strategy for the design of repairable impact-resistant and wear-resistant hydrogels.
Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Stiff-yet-tough glassy hydrogels for tendon rupture repair.Bioactive materials · 2026Article
- Multifunctional Hydrogels in Sustainable Agriculture: Structure Design, Application and Future Challenges.Gels (Basel, Switzerland) · 2026Review
- Dynamically Bonded MXene‑Composite Hydrogel via Confined‑Space Gelation for Multimodal Sensing, Photothermal Response and Human‑Machine Interaction.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Impact-Resistant Hydrogels Via Quaternary Ammonium-Regulated Networks.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- A natural solution from caterpillar cuticles for flexible impact-resistant materials.Nature communications · 2026Article
- Enamel-inspired composite with robust mechanical properties and self-healing capability.Nature communications · 2026Article
- Gel-Gel Interface Engineering for the Synthesis of Anisotropic Hydrogels with Designable Polymer Orientations.Advanced materials (Deerfield Beach, Fla.) · 2025Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Self-healing hydrogels can autonomously repair damage, enhancing their performance stability and broadening their applications as soft devices. Although the incorporation of dynamic interactions enhances self-healing capabilities, it simultaneously weakens the hydrogels' strength. External stimuli such as heating, while accelerating the healing process, may also lead to dehydration. Developing a stable repair strategy that combines rapid healing and high mechanical strength is challenging. Here, we introduce "salt-welding" for high-strength hydrogels with rapid room temperature self-healing. This is achieved through dynamic borate ester bonds in a salt-responsive poly(methacrylamide) hydrogel. The process involves "salt-fusion" to convert fractures into a viscous liquid for swift healing, followed by "salt-concretion" to toughen the hydrogel. The hydrogels achieve a posthealing strength of 23 megapascals in 95 minutes at room temperature, with near 100% healing efficiency. Leveraging their tunable mechanical strength and rapid healing rate, the hydrogel can be tailored for applications as a reparable wear-resistant material and damping device.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.