Highly Oxidation‐Resistant and Self‐Healable MXene‐Based Hydrogels for Wearable Strain Sensor

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(24)

Published: March 2, 2023

Abstract Very recently, MXene‐based wearable hydrogels have emerged as promising candidates for epidermal sensors due to their tissue‐like softness and unique electrical mechanical properties. However, it remains a challenge achieve with reliable sensing performance prolonged service life, because MXene inevitably oxidizes in water‐containing system of the hydrogels. Herein, catechol‐functionalized poly(vinyl alcohol) (PVA‐CA)‐based is proposed inhibit oxidation MXene, leading rapid self‐healing superior strain behaviors. Sufficient interaction hydrophobic catechol groups surface reduces oxidation‐accessible sites reaction water eventually suppresses hydrogel. Furthermore, PVA‐CA‐MXene hydrogel demonstrated use sensor real‐time motion monitoring, such detecting subtle human motions handwriting. The signals can be accurately classified using deep learning models.

Language: Английский

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A Self-Powered Piezoelectric Nanofibrous Membrane as Wearable Tactile Sensor for Human Body Motion Monitoring and Recognition

Advanced Fiber Materials, Journal Year: 2023, Volume and Issue: 5(4), P. 1417 - 1430

Published: April 11, 2023

Language: Английский

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Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Advanced Engineering Materials, Journal Year: 2023, Volume and Issue: 25(21)

Published: Aug. 29, 2023

Stimuli‐responsive polymers (SRPs) are special types of soft materials, which have been extensively used for developing flexible actuators, robots, wearable devices, sensors, self‐expanding structures, and biomedical thanks to their ability change shapes functional properties in response external stimuli including light, humidity, heat, pH, electric field, solvent, magnetic field or combinations two more these stimuli. In recent years, additive manufacturing (AM) aka 3D printing technology SRPs, also known as 4D printing, has gained phenomenal attention different engineering fields, its unique develop complex, personalized, innovative undergo twisting, elongating, swelling, rolling, shrinking, bending, spiraling, other complex morphological transformations. Herein, an effort made provide insightful information about the AM techniques, type applications including, but not limited tissue engineering, bionics, construction, smart textiles. This article incorporates current challenges prospects, hoping basis utilization this fields. It is expected that amalgamation with SRPs would unparalleled advantages arenas.

Language: Английский

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Rational Design of Cellulosic Triboelectric Materials for Self-Powered Wearable Electronics

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: May 11, 2023

With the rapid development of Internet Things and flexible electronic technologies, there is a growing demand for wireless, sustainable, multifunctional, independently operating self-powered wearable devices. Nevertheless, structural flexibility, long time, wearing comfort have become key requirements widespread adoption electronics. Triboelectric nanogenerators as distributed energy harvesting technology great potential application in sensing. Compared with rigid electronics, cellulosic electronics significant advantages terms breathability, functionality. In this paper, research progress advanced triboelectric materials reviewed. The interfacial characteristics cellulose are introduced from top-down, bottom-up, composite material preparation process. Meanwhile, modulation strategies properties presented. Furthermore, design such surface functionalization, structure design, vacuum-assisted self-assembly systematically discussed. particular, fields human harvesting, tactile sensing, health monitoring, human-machine interaction, intelligent fire warning outlined detail. Finally, current challenges future directions

Language: Английский

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A review on flexible wearables – Recent developments in non-invasive continuous health monitoring

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 366, P. 114993 - 114993

Published: Jan. 2, 2024

Language: Английский

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A Review of Durable Flame-Retardant Fabrics by Finishing: Fabrication Strategies and Challenges

Advanced Fiber Materials, Journal Year: 2023, Volume and Issue: 5(3), P. 731 - 763

Published: Feb. 15, 2023

Language: Английский

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Multiscale Dot‐Wire‐Sheet Heterostructured Nitrogen‐Doped Carbon Dots‐Ti₃C₂T_x/Silk Nanofibers for High‐Performance Fiber‐Shaped Supercapacitors

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(20)

Published: March 14, 2023

Fiber-shaped supercapacitors (FSCs) have become one of the significantly strategical flexible energy-storage materials towards future wearable textile electronics and metaverse technologies. Here, we develop high-performance FSCs based on multiscale dot-wire-sheet heterostructure microfiber nitrogen-doped carbon dots-Ti3 C2 Tx /silk nanofibers (NCDs-Ti3 /SNFs) hybrids via microfluidic fabrication. Due to enlarged interlayer spacing, plentiful porous channels, accelerated H+ ion transport dynamics, large electrical conductivity excellent mechanical strength/flexibility, NCDs-Ti3 /SNFs possesses high volumetric capacitance (2218.7 F cm-3 ) reversible charge-discharge stability in 1 M H2 SO4 electrolyte. Furthermore, solid-state present energy density (57.9 mWh ), good (1157 long-life cycles (82.3 % retention after 40000 cycles), which realize actual energy-supply applications (powering lamp, watch toy car).

Language: Английский

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Fabrication Techniques and Sensing Mechanisms of Textile-Based Strain Sensors: From Spatial 1D and 2D Perspectives

Advanced Fiber Materials, Journal Year: 2023, Volume and Issue: 6(1), P. 36 - 67

Published: Oct. 25, 2023

Language: Английский

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MXene-based fibers: Preparation, applications, and prospects

Science Bulletin, Journal Year: 2024, Volume and Issue: 69(17), P. 2776 - 2792

Published: July 15, 2024

Language: Английский

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Hybrid Piezoelectric/Triboelectric Wearable Nanogenerator Based on Stretchable PVDF–PDMS Composite Films

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(5), P. 6239 - 6249

Published: Jan. 25, 2024

Hybrid piezoelectric/triboelectric nanogenerators combine the merits of piezoelectric (PENGs) and triboelectric (TENGs), possessing enhanced electrical output sensitivity. However, structures majority hybrid are rather complex in integrating both functions, limiting their practical application wearable electronics. Herein, we propose to construct a nanogenerator (PT-NG) with simple structure based on composite film simultaneously achieve coupling charge generation triboelectrification improved energy conversion efficiency. The consists electrospun PVDF nanofibers embedded surface PDMS film, which not only forms rough nanomorphology but also provides structural protection by during compressive deformation. results have shown that PT-NG can generate much higher outputs than individual TENG PENG devices. devices exhibit high level mechanical-to-electrical efficiency superior performance charging capacitors functioning as self-powered sensors for detection different signals from finger movement, recognition various gestures, monitoring respiration. More importantly, device possesses an impressive durability, maintaining its layered over 5000 testing cycles without noticing any obvious damage or detachment between layers. Our demonstrated combining substrate is efficient way fabricate highly harvesting intelligent identification health monitoring.

Language: Английский

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