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Play-Doh Inspired a Transformative, Shape-Adaptive iHEÄLS Enabling Post-Crosslinking Mechanical-Biological Modulation
Niyou Wang1,2, Chao Liang3, Soo A Kim1,4
1Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts, USA.
Advanced Materials (Deerfield Beach, Fla.)
|August 1, 2026
Summary
A new biomaterial, iHEÄLS, offers improved musculoskeletal repair. Its shape-adaptive cellulose nanocrystal (CNC) triple-networks provide conformal filling, strong adhesion, and enhanced bone regeneration, addressing limitations of current fillers.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Nanotechnology
Background:
- Current resorbable biomaterials for musculoskeletal repair lack conformal adaptability, adhesion in wet conditions, and balanced mechanical properties.
- These limitations hinder stable wound sealing and effective tissue regeneration.
Purpose of the Study:
- To develop a novel, shape-adaptive biomaterial (iHEÄLS) for improved musculoskeletal repair.
- To address the shortcomings of existing resorbable fillers by enhancing adaptability, adhesion, and mechanical robustness.
Main Methods:
- Development of iHEÄLS using cellulose nanocrystal (CNC)-based triple-networks.
- Utilizing mechanical training post-crosslinking to reinforce the material's structure and bioactivity.
- Evaluating iHEÄLS in a critical-sized calvarial defect model for bone regeneration and hemostasis.
Main Results:
- iHEÄLS demonstrated conformal defect filling, robust adhesion, and shape stabilization via self-healing.
- Mechanical training enhanced network reinforcement and amplified bioactivity and mechanotransduction signaling.
- The material promoted cell migration, osteogenic differentiation, and enhanced bone regeneration with improved hemostasis.
Conclusions:
- iHEÄLS offers a practical, user-friendly platform for musculoskeletal repair, especially in emergencies.
- The biomaterial integrates mechanical-biological modulability through post-crosslinking mechanical training.
- iHEÄLS shows significant potential for advancing regenerative medicine and bone defect repair.
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