Recent Advances in Flexible Pressure Sensors Based on MXene Materials

Advanced Materials, Год журнала: 2024, Номер 36(24)

Опубликована: Фев. 21, 2024

In the past decade, with rapid development of wearable electronics, medical health monitoring, Internet Things, and flexible intelligent robots, pressure sensors have received unprecedented attention. As a very important kind electronic component for information transmission collection, gained wide application prospect in fields aerospace, biomedical skin, human-machine interface. recent years, MXene has attracted extensive attention because its unique 2D layered structure, high conductivity, rich surface terminal groups, hydrophilicity, which brought new breakthrough sensing. Thus, it become revolutionary pressure-sensitive material great potential. this work, advances MXene-based are reviewed from aspects sensing type, mechanism, selection, structural design, preparation strategy, application. The methods strategies to improve performance analyzed details. Finally, opportunities challenges faced by discussed. This review will bring research level, promoting wider exploitation practical materials sensors.

Язык: Английский

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Multifunctional, Ultra‐Tough Organohydrogel E‐Skin Reinforced by Hierarchical Goatskin Fibers Skeleton for Energy Harvesting and Self‐Powered Monitoring

Advanced Functional Materials, Год журнала: 2023, Номер 33(42)

Опубликована: Июнь 24, 2023

Abstract E‐skins based on conductive hydrogels are regarded as ideal candidates for sensing application. However, limited by the constructed materials and strategies, current have poor mechanical properties, single function, unsatisfactory conductivity, which seriously hinder their development Herein, natural goatskin with hierarchical 3D network structure weaved collagen fibers is used substrate material construction of ultra‐tough hydrogel through a “top‐down” strategy, in acrylic acid monomer first vacuum‐impregnated into interstices skeleton then polymerized situ to produce skin‐based unique wrapping structure. Based hydrogel, load‐carrying capacity, after loaded new multifunctional nanoscale‐conductive medium nanosilver particles (AgNPs) 1,3‐propanediol, goatskin‐derived organohydrogel S@HCP excellent self‐adhesion, transparency, ultraviolet shielding, antibacterial, biocompatibility, environmental stability, conductivity. Notably, stretchable S‐TENG assembled using can be perfectly suited real‐life applications including biomechanical energy harvesting, self‐powered tactile‐sensing, motion monitoring. It believed that, combining animal skin different functional materials, it possible reuse skin, “dead skin,” provides platform developing flexible e‐skin.

Язык: Английский

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Versatile Ion‐Gel Fibrous Membrane for Energy‐Harvesting Iontronic Skin

Advanced Functional Materials, Год журнала: 2023, Номер 33(37)

Опубликована: Май 14, 2023

Abstract Developing versatile and high sensitivity sensors is beneficial for promoting flexible electronic devices human‐machine interactive systems. Researchers are working on the exploration of various active sensing materials toward broad detection, multifunction, low‐power consumption. Here, a ion‐gel fibrous membrane presented by electrospinning technology utilized to construct capacitive triboelectric nanogenerator (TENG). The iontronic sensor exhibits inherently favorable repeatability, which retains long‐term stability after 5000 cycles. can also detect clear pulse waveform at human wrist enable mapping pressure distribution sensory matrix. For TENG, maximum peak power 54.56 µW be used commercial electronics. In addition, prepared TENG array achieve interactive, rapidly responsive, accurate dynamic monitoring, broadens direct effective devices. promising provide an outstanding approach physiological biomechanical energy harvesting, interaction, self‐powered monitoring

Язык: Английский

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High Strength and Toughness Polymeric Triboelectric Materials Enabled by Dense Crystal-Domain Cross-Linking

Nano Letters, Год журнала: 2024, Номер 24(12), С. 3826 - 3834

Опубликована: Март 18, 2024

Lightweight, easily processed, and durable polymeric materials play a crucial role in wearable sensor devices. However, achieving simultaneously high strength toughness remains challenge. This study addresses this by utilizing an ion-specific effect to control crystalline domains, enabling the fabrication of triboelectric material with tunable mechanical properties. The dense crystal-domain cross-linking enhances energy dissipation, resulting boasting both tensile (58.0 MPa) (198.8 MJ m–3), alongside remarkable 416.7% fracture elongation 545.0 MPa modulus. Leveraging these properties, is successfully integrated into self-powered devices, real-time feedback on human joint movement. work presents valuable strategy for overcoming strength-toughness trade-off materials, paving way their enhanced applicability broader use diverse sensing applications.

Язык: Английский

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Flexible resistive tactile pressure sensors

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(16), С. 9296 - 9321

Опубликована: Янв. 1, 2024

This review covers recent advancements in flexible resistive tactile pressure sensors, including operational principles, performance metrics, material choices, structural design, and applications, as well future challenges.

Язык: Английский

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Toward an AI Era: Advances in Electronic Skins

Chemical Reviews, Год журнала: 2024, Номер 124(17), С. 9899 - 9948

Опубликована: Авг. 28, 2024

Electronic skins (e-skins) have seen intense research and rapid development in the past two decades. To mimic capabilities of human skin, a multitude flexible/stretchable sensors that detect physiological environmental signals been designed integrated into functional systems. Recently, researchers increasingly deployed machine learning other artificial intelligence (AI) technologies to neural system for processing analysis sensory data collected by e-skins. Integrating AI has potential enable advanced applications robotics, healthcare, human–machine interfaces but also presents challenges such as diversity model robustness. In this review, we first summarize functions features e-skins, followed feature extraction different models. Next, discuss utilization design e-skin address key topic implementation e-skins accomplish range tasks. Subsequently, explore hardware-layer in-skin before concluding with an opportunities various aspects AI-enabled

Язык: Английский

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Tough and Strain-Sensitive Organohydrogels Based on MXene and PEDOT/PSS and Their Effects on Mechanical Properties and Strain-Sensing Performance

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(9), С. 11914 - 11929

Опубликована: Фев. 21, 2024

Conductive hydrogels have shown promising application prospects in the field of flexible sensors, but they often suffer from poor mechanical properties, low sensitivity, and lack frost resistance. Herein, we report a tough, highly sensitive, antifreeze strain sensor assembled conductive organohydrogel composed dual-cross-linked polyacrylamide poly(vinyl alcohol) (PVA) network, as well MXene nanosheets nanofillers poly(3,4-ethylenedioxythiophene)-doped poly(styrenesulfonate) (PEDOT/PSS) main conducting component (PPMP-OH organohydrogel). The tensile strength toughness PPMP-OH had been greatly enhanced by due to reinforcement nanosheets, various strong noncovalent interactions formed organohydrogels. PPM1P-OH organohydrogels showed 1.48 MPa at 772% 5.59 MJ/m3. Moreover, conductivity strain-sensing performance were significantly improved PEDOT/PSS, which can form hydrogen bonds with PVA electrostatic MXene. This was beneficial for constructing uniformly distributed stable 3D network helped obtain strain-dependent resistance PPMP-OH. sensors PPMP1-OH exhibited high sensitivity 5.16, wide range detectable strains up 500%, short response time 122 ms, effectively detect physiological activities human body stability. In addition, corresponding pressure array also identifying magnitude position.

Язык: Английский

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MXenes for Wearable Physical Sensors toward Smart Healthcare

ACS Nano, Год журнала: 2024, Номер 18(36), С. 24705 - 24740

Опубликована: Авг. 26, 2024

The gradual rise of personal healthcare awareness is accelerating the deployment wearable sensors, whose ability acquiring physiological vital signs depends on sensing materials. MXenes have distinct chemical and physical superiorities over other 2D nanomaterials for sensors. This review presents a comprehensive summary latest advancements in MXenes-based materials It begins with an introduction to special structural features performance, followed by in-depth exploration versatile functionalities. A detailed description different mechanisms also included illustrate contribution performance its improvement. In addition, real-world applications sensors monitoring are as well. remaining challenges their promising opportunities finally narrated, conjunction prospective future development.

Язык: Английский

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A Comprehensive Review on Fabrication and Structural Design of Polymer Composites for Wearable Pressure Sensors

Polymer science & technology., Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Язык: Английский

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Noncontact monolayered triboelectric nanogenerator based on stretchable MWCNTs/MXene/Ecoflex film for human–machine interface and high-accuracy handwritten recognition

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159562 - 159562

Опубликована: Янв. 1, 2025

Язык: Английский

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