Sodium alginate-based coaxial fibers synergistically integrate moisture actuation, length tracing, humidity sensing, and electric heating

The development of wearable electronics has driven the need for smart fibers with advanced multifunctional synergy. In this paper, we present a design of a multifunctional coaxial fiber that is composed of a biopolymer-derived core and an MXene/silver nanowire (AgNW) sheath by wet spinning. The fibe...

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Bibliographic Details
Published in:Materials horizons 2024-09, Vol.11 (19), p.4769-478
Main Authors: Dong, Lizhong, Ren, Ming, Wang, Yulian, Yuan, Xiaojie, Wang, Xiaobo, Yang, Guang, Li, Yuxin, Li, Wei, Shao, Yunfeng, Qiao, Guanlong, Li, Weiwei, Sun, Hongli, Di, Jiangtao, Li, Qingwen
Format: Article
Language:English
Subjects:
Actuation
Biopolymers
Electric heating
Electrical resistivity
Electronics
Fibers
Humidity
Moisture
MXenes
Nanowires
Portable equipment
Sheaths
Sodium alginate
Tracing
Wearable technology
Wet spinning
Wound healing
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Summary:The development of wearable electronics has driven the need for smart fibers with advanced multifunctional synergy. In this paper, we present a design of a multifunctional coaxial fiber that is composed of a biopolymer-derived core and an MXene/silver nanowire (AgNW) sheath by wet spinning. The fiber synergistically integrates moisture actuation, length tracing, humidity sensing, and electric heating, making it highly promising for portable devices and protective systems. The biopolymer-derived core provides deformation for moisture-sensitive actuation, while the MXene/AgNW sheath with good conductivity enables the fiber to perform electric heating, humidity sensing, and self-sensing actuation. The coaxial fiber can be programmed to rapidly desorb water molecules to shrink to its original length by using the MXene/AgNW sheath as an electrical heater. We demonstrate proof-of-concept applications based on the multifunctional fibers for thermal physiotherapy and wound healing/monitoring. The sodium alginate@MXene-based coaxial fiber presents a promising solution for the next-generation of smart wearable electronics. A sodium alginate@MXene-based fiber prepared continuously enables the multifunctional synergy of moisture actuation, length tracing, humidity sensing, and electric heating.
ISSN:2051-6347
2051-6355
2051-6355
DOI:10.1039/d4mh00631c