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Scalable Production of Tailor-Designed MXene-Hydrogel Core-Shell Fibers via Dual Stress-Guided Alignment during
Youngbin Lee1, Yeo Hoon Yoon2,3, Gang San Lee2,3
1Medical Research Center, Seoul National University, Seoul 03080, Republic of Korea.
ACS Nano
|December 19, 2025
Summary
Researchers developed a scalable method to produce long, highly aligned MXene fibers using liquid injection-assisted thermal drawing. These functional fibers offer excellent electromagnetic interference shielding and conductivity for advanced electronics and biomedical applications.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Large-scale production of two-dimensional (2D) MXene-based functional fibers is difficult while maintaining material properties.
- MXenes offer exceptional electrical conductivity and electromagnetic interference (EMI) shielding capabilities.
Purpose of the Study:
- To develop a scalable method for producing highly aligned MXene fibers.
- To integrate these fibers into long, functional materials for advanced applications.
Main Methods:
- Liquid injection-assisted thermal drawing was employed to align MXene flakes within fiber channels.
- Interfacial shear stress and osmotic pressure from hydrogel cladding induced in situ stress-induced alignments.
- Tens of meters-long, highly aligned Ti3C2Tx MXene-hydrogel core-shell fibers were fabricated.
Main Results:
- Achieved highly aligned MXene structures within continuous fibers.
- Demonstrated excellent EMI shielding effectiveness and electrical conductivity.
- Successfully fabricated multifunctional fiber-based devices, including EMI self-protective electronics and neural probes.
Conclusions:
- The scalable thermal drawing approach enables the production of versatile MXene fibers.
- These fibers hold significant potential for applications in precise electronics, smart textiles, and biomedical engineering.
- This method expands the scope of MXene utilization in advanced material systems.
Keywords:
EMI shieldingMXenecore–shell structurehydrogelmultifunctional fiberneural probethermal drawing
