Continuous dual-network alginate hydrogel fibers with superior mechanical and electrical performance for flexible multi-functional sensors.
Int J Biol Macromol
; 273(Pt 2): 133151, 2024 Jul.
Article
de En
| MEDLINE
| ID: mdl-38880440
ABSTRACT
Hydrogel fibers play a crucial role in the design and manufacturing of flexible electronic devices. However, continuous production of hydrogel fibers with high strength, toughness, and conductivity remains a significant challenge. In this study, ion-conductive sodium alginate/polyvinyl alcohol composite hydrogel fibers with an interlocked dual network structure were prepared through continuous wet spinning based on the pH-responsive dynamic borate ester bonds. Owing to the interlocked dual network structure, the resulting hydrogel fibers integrated superior performance of strength (4.31 MPa), elongation-at-break (>1500 %), ion conductivity (17.98 S m-1) and response sensitivity to strain (GF = 3.051). Benefiting from the excellent performance, the composite hydrogel fiber could be applied as motion-detecting sensors, including high-frequency, high-speed reciprocating mechanical motion, and human motion. Furthermore, the superior compatibility for human-computer interaction of the hydrogel fiber was also demonstrated, which a manipulator could be controlled to perform different actions, by a smart glove equipped with the hydrogel fiber sensors.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Poly(alcool vinylique)
/
Hydrogels
/
Conductivité électrique
/
Alginates
Limites:
Humans
Langue:
En
Journal:
Int J Biol Macromol
Année:
2024
Type de document:
Article
Pays d'affiliation:
Chine