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Biocompatible carboxymethyl cellulose-based super-elastic hierarchical sponge via a novel templating and plasticizing
Xiangyang Guo1, Qi Zhang1, Meng Zhu2
1Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment, Shijiazhuang Tiedao University, 17 Beierhuan East Road, Shijiazhuang 050043, China.
Carbohydrate Polymers
|November 13, 2022
Summary
Researchers developed super-elastic (SE) sponges from carboxymethyl cellulose (CMC). This novel method creates highly resilient and absorbent materials with potential for wound dressings and tissue engineering applications.
Area of Science:
- Materials Science
- Biomaterials Engineering
Background:
- Developing advanced elastic materials is crucial for biomedical applications.
- Cellulose derivatives offer biocompatible and biodegradable platforms for material fabrication.
Purpose of the Study:
- To report a facile method for fabricating hierarchical super-elastic (SE) sponges using carboxymethyl cellulose (CMC).
- To explore the tunability of sponge morphology and properties via controlled fabrication parameters.
Main Methods:
- Utilized ice templating and porogen leaching to create macro-pores and stress-dissipating pore walls.
- Employed a plasticizing method prior to vacuum drying to minimize structural deformation.
- Controlled porogen content to tune specific surface area and sponge morphology.
Main Results:
- Successfully fabricated hierarchical SE CMC sponges with excellent fatigue resistance and fast shape recovery.
- Achieved high water absorption, biosafeness, and rapid degradation characteristics.
- Demonstrated tunability of surface area and morphology by adjusting porogen content.
Conclusions:
- The developed method offers a novel route for constructing SE sponges from CMC.
- These sponges show significant potential for applications in green elastic wound dressings, tissue engineering, and absorbent materials.
