Self-Healing and Elastic Triboelectric Nanogenerators for Muscle Motion Monitoring and Photothermal Treatment

ACS Nano, Journal Year: 2021, Volume and Issue: 15(9), P. 14653 - 14661

Published: Sept. 15, 2021

Owing to wearing and unpredictable damage, the working lifetime of triboelectric nanogenerators (TENGs) is largely limited. In this work, we prepared a single-electrode multifunctional TENG (MF-TENG) that exhibits fast self-healing, human health monitoring capability, photothermal properties. The device consists thin self-healing poly(vinyl alcohol)-based hydrogel sandwiched between two silicone elastomer films. MF-TENG short-circuit current, transfer charge, open-circuit voltage 7.98 μA, 78.34 nC, 38.57 V, respectively. Furthermore, owing repairable networks dynamic imine bonds in charged layer borate ester electrodes, could recover its original state after mechanical damage within 10 min at room temperature. can be attached different joints for self-powered personal information. Additionally, under near-infrared laser irradiation provide therapy assisting recovery motion. It envisaged proposed applied fields wearable electronics health-monitoring devices.

Language: Английский

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Two‐dimensional MXenes: New frontier of wearable and flexible electronics

InfoMat, Journal Year: 2022, Volume and Issue: 4(4)

Published: Feb. 22, 2022

Abstract Wearable electronics offer incredible benefits in mobile healthcare monitoring, sensing, portable energy harvesting and storage, human‐machine interactions, etc., due to the evolution of rigid structure flexible stretchable devices. Lately, transition metal carbides nitrides (MXenes) are highly regarded as a group thriving two‐dimensional nanomaterials extraordinary building blocks for emerging platforms because their excellent electrical conductivity, enriched surface functionalities, large area. This article reviews most recent developments MXene‐enabled wearable electronics. Several electronic devices designed on nanometric scale highlighted by drawing attention widely developed nonstructural attributes, including 3D configured devices, textile planer substrates, bioinspired structures, printed materials. Furthermore, unique progress these nanodevices is representative applications healthcare, energy, electromagnetic interference (EMI) shielding, humanoid control machines. The prospects MXene key frontier next‐generation envisioned design challenges systems also discussed, followed proposed solutions. image

Language: Английский

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Morphological Engineering of Sensing Materials for Flexible Pressure Sensors and Artificial Intelligence Applications

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: July 5, 2022

As an indispensable branch of wearable electronics, flexible pressure sensors are gaining tremendous attention due to their extensive applications in health monitoring, human –machine interaction, artificial intelligence, the internet things, and other fields. In recent years, highly have been developed using various materials/structures transduction mechanisms. Morphological engineering sensing materials at nanometer micrometer scales is crucial obtaining superior sensor performance. This review focuses on rapid development morphological technologies for sensors. We discuss different architectures designs achieve high performance, including sensitivity, broad working range, stable sensing, low hysteresis, transparency, directional or selective sensing. Additionally, general fabrication techniques summarized, self-assembly, patterning, auxiliary synthesis methods. Furthermore, we present emerging high-performing microengineered healthcare, smart homes, digital sports, security machine learning-enabled computational platform. Finally, potential challenges prospects future developments discussed comprehensively.

Language: Английский

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Emerging MXene‐Based Flexible Tactile Sensors for Health Monitoring and Haptic Perception

Small, Journal Year: 2023, Volume and Issue: 19(27)

Published: March 25, 2023

Abstract Due to their potential applications in physiological monitoring, diagnosis, human prosthetics, haptic perception, and human–machine interaction, flexible tactile sensors have attracted wide research interest recent years. Thanks the advances material engineering, high performance been obtained. Among representative pressure sensing materials, 2D layered nanomaterials many properties that are superior those of bulk more suitable for sensors. As a class inorganic compounds materials science, MXene has excellent electrical, mechanical, biological compatibility. MXene‐based composites proven be promising candidates due stretchability metallic conductivity. Therefore, great efforts devoted development sensor applications. In this paper, controllable preparation characterization introduced. Then, progresses on fabrication strategies, operating mechanisms, device composite‐based sensors, including piezoresistive capacitive piezoelectric triboelectric reviewed. After that, material‐based electronics motion healthcare, artificial intelligence discussed. Finally, challenges perspectives summarized.

Language: Английский

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Super-Tough and Environmentally Stable Aramid. Nanofiber@MXene Coaxial Fibers with Outstanding Electromagnetic Interference Shielding Efficiency

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: April 24, 2022

Although electrically conductive and hydrophilic MXene sheets are promising for multifunctional fibers electronic textiles, it is still a challenge to simultaneously enhance both conductivity mechanical properties of because the high rigidity insufficient inter-sheet interactions. Herein, we demonstrate core-shell wet-spinning methodology fabricating highly conductive, super-tough, ultra-strong, environmentally stable Ti3C2Tx MXene-based with cores tough aramid nanofiber (ANF) shells. The orientated low-defect structure endows ANF@MXene fiber super-toughness ~ 48.1 MJ m-3, strength 502.9 MPa, 3.0 × 105 S m-1. super-tough can be woven into exhibiting an excellent electromagnetic interference (EMI) shielding efficiency 83.4 dB at small thickness 213 μm. Importantly, protection ANF shells provides satisfactory cyclic stability under dynamic stretching bending, resistance acid, alkali, seawater, cryogenic temperatures, fire. oxidation demonstrated by their well-maintained EMI performances. would in fields wearable electronics aerospace.

Language: Английский

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A wearable self-powered fire warning e-textile enabled by aramid nanofibers/MXene/silver nanowires aerogel fiber for fire protection used in firefighting clothing

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 460, P. 141661 - 141661

Published: Feb. 2, 2023

Language: Английский

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Personal thermal management techniques for thermal comfort and building energy saving

Materials Today Physics, Journal Year: 2021, Volume and Issue: 20, P. 100465 - 100465

Published: June 25, 2021

Language: Английский

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2D MXene‐Based Biosensing: A Review

Small, Journal Year: 2022, Volume and Issue: 19(2)

Published: Nov. 22, 2022

Abstract MXene emerged as decent 2D material and has been exploited for numerous applications in the last decade. The remunerations of ideal metallic conductivity, optical absorbance, mechanical stability, higher heterogeneous electron transfer rate, good redox capability have made a potential candidate biosensing applications. hydrophilic nature, biocompatibility, antifouling, anti‐toxicity properties opened avenues to perform vitro vivo analysis. In this review, concept, operating principle, detailed mechanism, characteristic are comprehensively assessed compiled along with breakthroughs fabrication conjugation strategies development unique electrochemical biosensors. Further, current challenges summarized suggested future aspects. This review article is believed shed some light on will open new opportunities advanced translational application bioassays.

Language: Английский

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Ultra-compact MXene fibers by continuous and controllable synergy of interfacial interactions and thermal drawing-induced stresses

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Aug. 5, 2022

Recent advances in MXene (Ti3C2Tx) fibers, prepared from electrically conductive and mechanically strong nanosheets, address the increasing demand of emerging yet promising electrode materials for development textile-based devices beyond. However, to reveal full potential reaching a balance between electrical conductivity mechanical property is still fundamental challenge, mainly due difficulties further compact loose nanosheets. In this work, we demonstrate continuous controllable route fabricate ultra-compact fibers with an in-situ generated protective layer via synergy interfacial interactions thermal drawing-induced stresses. The resulting high orientation low porosity exhibit not only excellent tensile strength ultra-high toughness, but also conductivity. Then, construct meter-scale textiles using these achieve high-performance electromagnetic interference shielding personal management, accompanied by durability stability even after multiple washing cycles. demonstrated generic strategy can be applied broad range nanostructured functional large-scale applications both space daily lives.

Language: Английский

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In Situ Loading of Polypyrrole onto Aramid Nanofiber and Carbon Nanotube Aerogel Fibers as Physiology and Motion Sensors

ACS Nano, Journal Year: 2022, Volume and Issue: 16(5), P. 8161 - 8171

Published: April 28, 2022

Nanocomposite conductive fiber has been newly developed as a lightweight material with high flexibility and strong weavability, which can meet the requirements of flexible wearable devices. Herein, porous aramid nanofibers (ANF) carbon nanotube (CNT) aerogel fibers coated polypyrrole (PPy) layers are prepared by wet spinning method for motion detection information transmission. The ANF/CNT/PPy low density (56.3 mg/cm3), conductivity (6.43 S/m), tensile strength (2.88 MPa) were used sensors sensitivity (0.12) long life (1000 cycles). At same time, differential is utilized to reduce transmission time (up 46%). High- low-temperature-resistant (-196 100 °C) also available quick heater ionic solution detector. In summary, be multifunctional sensor human-health monitoring.

Language: Английский

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