Stretchable Thermochromic Fluorescent Fibers Based on Self-Crystallinity Phase Change for Smart Wearable Displays DOI Open Access

Yongmei Guo,

Zixi Hu,

Luyao Zhan

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3575 - 3575

Published: Dec. 21, 2024

Smart fibers with tunable luminescence properties, as a new form of visual output, present the potential to revolutionize personal living habits in future and are receiving more attention. However, huge challenge smart wearable materials is their stretching capability for seamless integration human body. Herein, stretchable thermochromic fluorescent prepared based on self-crystallinity phase change, using elastic polyurethane (PU) fiber matrix, meet dynamic requirements The switching fluorescence-emitting characteristic derived from reversible conversion dispersion/aggregation state fluorophore coumarin 6 (C6) quencher methylene blue (MB) phase-change material hexadecanoic acid (HcA) during heating/cooling processes. Considering important role materials, dye encapsuled solid via piercing–solidifying method avoid dissolution HcA by organic solvent PU spinning solution maintain excellent behavior fibers. obtained wet exhibit good emission contrast reversibility, well high elasticity 800% elongation. This work presents strategy constructing human–machine interaction communications.

Language: Английский

Smart liquid crystal elastomer fibers DOI

Jiazhe Ma,

Zhongqiang Yang

Matter, Journal Year: 2025, Volume and Issue: 8(2), P. 101950 - 101950

Published: Feb. 1, 2025

Citations

3
Diamond‐Structured Fabric‐Based Triboelectric Nanogenerators for Energy Harvesting and Healthcare Application DOI
Taosif Ahmed,

Yuanyuan Gao,

Mei Yi So

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: Aug. 16, 2024

Abstract Wearable technology is experiencing remarkable progress, prompting the need for sustainable power sources like triboelectric nanogenerators (TENGs). However, integrating TENGs into fabrics and insufficient outputs that allows comfortable wear without obstructing user's movements presents a significant challenge. In this study, novel kind of diamond‐structured fabric‐based (DSF‐TENGs) introduced utilizing an easy, economical, scalable weaving method any chemical modification. Owing to its 3D diamond pattern, surface interactions are enhanced greater charge generation together with strengthened mechanical engagement more effective transfer. The DSF‐TENG, unique self‐resilient structure, achieves impressive electric performance, including output voltage ≈763 V, short‐circuit current ≈20.4 µA, density 2862.78 mW m −2 , which multiple times higher than most existing TENGs. It also offers excellent air permeability 560 mm s −1 consistent electricity sensing even after ten washing cycles, incredible durability, withstanding over 30 000 cycles. Furthermore, DSF‐TENG included in insole capable gait patterns, walking speed, fall detections patients Parkinson's disease. capabilities indicate strong potential future developments wearable electronics healthcare applications.

Language: Английский

Citations

11
Recent Advances in Twisted and Coiled Artificial Muscles and Their Applications DOI Creative Commons
J. F. Sun, Shijing Zhang, Jie Deng

et al.

Published: Feb. 17, 2025

ABSTRACT Twisted and coiled artificial muscles (TAMs) have been extensively studied in the field of soft robots due to their exceptional properties, including high energy density, large load‐to‐weight ratio, deformation, low driving voltage, hysteresis. The advancements TAMs hold potential for enhancing performance broadening functional capabilities robots, thus demonstrating substantial practical value. This review outlines recent progress diverse applications robots. First, commonly used materials fabricate TAMs, inorganic fibers, composite organic natural are discussed along with characteristics. Then, actuation strategies summarized across four aspects: thermal method, solvent electrochemical method other non‐contact methods. Moreover, configurations classified into single, parallel braided structures. In addition, various driven by introduced according functions, manipulation, locomotion, smart textile, sensor. Finally, research hotspots development trends evaluated. It is expected that this article can serve as a valuable reference source inspiration researchers actuators

Language: Английский

Citations

1
Ultra‐Compact MXene/Alginate/PVA Composite Fibers by Intercalation and Chelation for Enhanced Flame Retardancy and Energy Harvesting DOI Open Access
Ke Wu, Yide Liu,

Cunzhen Geng

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

MXene fibers with electro-conductivity and electrochemical properties have drawn growing research interest for its promising applications in wearable electronics, flexible electrodes, smart textiles. However, producing high strength keeps challenging because loose sheets are hard to compact tightly due electrostatic repulsion. Herein, ultra-compact MXene-based produced by intercalating alginate polyvinyl alcohol (PVA) layers into nanosheets chelating via metal ions (i.e., Ca2+). The hydrogen ionic bond beneficial decrease the interplanar spacing, which improves tensile strength. These result low porosity (0.2 vol%) a orientation factor of 0.877 exhibiting electrical conductivity (1006 S cm‒1). In addition, flame retardancy is enhanced without smoldering owing synergistic effect ions. Moreover, these electromagnetic interference shielding, mechanical stability, acid, alkali-resistant properties, photo-thermal can be achieved scale production. This strategy paves way continuous production functional fibers, applicable retardant fabric, wireless communication, energy harvesting,

Language: Английский

Citations

1
Recent Advances in Fibrous Materials for Hydroelectricity Generation DOI Creative Commons
Can Ge, Duo Xu, Xiao Feng

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 30, 2024

Abstract Depleting fossil energy sources and conventional polluting power generation pose a threat to sustainable development. Hydroelectricity from ubiquitous spontaneous phase transitions between liquid gaseous water has been considered promising strategy for mitigating the crisis. Fibrous materials with unique flexibility, processability, multifunctionality, practicability have widely applied fibrous materials-based hydroelectricity (FHG). In this review, mechanisms, design principles, electricity enhancement factors of FHG are first introduced. Then, fabrication strategies characteristics varied constructions including 1D fiber, yarn, 2D fabric, membrane, 3D framework, gel demonstrated. Afterward, advanced functions during harvesting, proton dissociation, ion separation, charge accumulation processes analyzed in detail. Moreover, potential applications supply, storage, electrical sensor, information expression also discussed. Finally, some existing challenges prospects future development sincerely proposed.

Language: Английский

Citations

5
Mechanical sensing by cellulose-aided composites: A critical overview DOI
Hongjian Zhang, Yebin Lee, Tiandong Zhang

et al.

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112145 - 112145

Published: Jan. 1, 2025

Language: Английский

Citations

0
Bioinspired natural fibers-derived wearable thermochromic materials for all-season self-adapting thermal management DOI

Long Xie,

Xuechuan Wang,

Yageng Bai

et al.

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Designing and Fabrication of a Biomimetic Soft Gripper Utilizing Phase Transition 3D Printing Technology DOI Open Access
Hongchao Cui,

Heng Zhou,

Haitian Xu

et al.

Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

The reversible phase‐change 3D printing technology offers significant advantages in creating magnetic biomimetic soft fixtures. A novel gripper is developed using thixotropic fluid, known for its complex rheological properties. consists of a modified silicone shell and fluid actuator, fabricated dual‐channel platform field module. Various shapes were modeled simulated, with cylindrical designs proving easy to produce highly deformable. Refined parameters, based on data, enhanced precision performance. gripper's variable stiffness, controlled by strength, successfully grips POM balls different sizes, demonstrating potential flexible clamping, aerospace, low‐friction transmission.

Language: Английский

Citations

0
High-performance Twisted Nylon Actuators for Soft Robots DOI Creative Commons
Jin Sun, Shijing Zhang, Jie Deng

et al.

Research, Journal Year: 2025, Volume and Issue: 8

Published: Jan. 1, 2025

Twisted nylon actuators (TNAs) are widely recognized in soft robotics for their excellent load-to-weight ratio and cost-effectiveness. However, limitations deformation output force restrict ability to support more advanced applications. Here, we report 3 performance-enhancing strategies inspired by the construction process of chromosome, which validated through novel types TNAs. First, design a dual-level helical structure, demonstrating remarkable improvements (60.2% vertically approximately 100% horizontally) energy storage capability (launching miniature basketball 131 cm height). Second, present parallel-twisted method, where TNAs reaches 11.0 N, achieving 12.1% contraction under load 15 N (10,000 times its weight). Additionally, construct structure based on TNAs, resulting 439.7% improvement capability. We have adopted several applications: (a) two bionic elbows capable rotating shooting over 130 cm; (b) robot that can rapidly jump 30 (c) finger achieves contracting (15.3% 2 kg load), precise bending (tracking errors less than 2.0%), twisting motions. This work presents approaches fabricating high-performance explores potential applications these driving robots with multifunctional capabilities.

Language: Английский

Citations

0
Adaptive Ultra‐Low Resilience Woven Triboelectric Nanogenerators for High‐Performance Wearable Energy Harvesting and Motion Sensing DOI Open Access
Mei Yi So, Bingang Xu

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

As electronic devices become increasingly compact and functional, the demand for renewable energy sources self-powered systems has risen dramatically. Triboelectric nanogenerators (TENGs) provide a sustainable solution, converting mechanical into electrical energy. This study introduces an advanced woven double-cloth triboelectric nanogenerator (WDC-TENG) harvesting sensing applications. Composed of BaTiO₃-doped polydimethylsiloxane (PDMS) copper-nickel alloy fabric (CNF), WDC-TENG features structure that minimizes deformation during contact-separation process, making it ideal applications such as insoles. Its modular design allows each weft yarn to function independent energy-generating unit, which can operate individually or in combination, significantly enhancing flexibility scalability. The achieves high-power density 15 W m2, generating current output 0.7 mA. Furthermore, its ensures excellent durability, enabling long-term wearing. Beyond harvesting, exhibits multifunctionality reliably powering microelectronic insole, while carpets, not only harvests from foot but also acts sensor real-time wireless monitoring pedestrian walking paths. WDC-TENG's low deformation, versatility position promising solution advancing wearable technology intelligent environments.

Language: Английский

Citations

0