Recent Progress on Smart Fiber and Textile Based Wearable Strain Sensors: Materials, Fabrications and Applications

Advanced Fiber Materials, Journal Year: 2022, Volume and Issue: 4(3), P. 361 - 389

Published: Feb. 11, 2022

Language: Английский

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Highly Sensitive and Stretchable MXene/CNTs/TPU Composite Strain Sensor with Bilayer Conductive Structure for Human Motion Detection

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(13), P. 15504 - 15516

Published: March 28, 2022

The universal application of wearable strain sensors in various situations for human-activity monitoring is considerably limited by the contradiction between high sensitivity and broad working range. There still remains a huge challenge to design featuring simultaneous range sensitivity. Herein, typical bilayer-conductive structure Ti3C2Tx MXene/carbon nanotubes (CNTs)/thermoplastic polyurethane (TPU) composite film was developed simple scalable vacuum filtration process utilizing porous electrospun thermoplastic mat as skeleton. MXene/CNTs/TPU sensor composed two parts: brittle densely stacked MXene upper lamella flexible MXene/CNT-decorated fibrous network lower layer. Benefiting from synergetic effect parts along with hydrogen-bonding interactions TPU fiber sheets, possesses both (up 330%) (maximum gauge factor 2911) well superb long-term durability (2600 cycles under 50%). Finally, can be successfully employed human movement monitoring, tiny facial expressions, respiration, pulse beat large-scale finger elbow bending, demonstrating promising attractive devices human-machine interaction.

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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Two-dimensional transition metal carbides and/or nitrides (MXenes) and their applications in sensors

Materials Today Physics, Journal Year: 2021, Volume and Issue: 21, P. 100527 - 100527

Published: Sept. 16, 2021

Language: Английский

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Topographic design in wearable MXene sensors with in-sensor machine learning for full-body avatar reconstruction

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

Published: Sept. 9, 2022

Abstract Wearable strain sensors that detect joint/muscle changes become prevalent at human–machine interfaces for full-body motion monitoring. However, most wearable devices cannot offer customizable opportunities to match the sensor characteristics with specific deformation ranges of joints/muscles, resulting in suboptimal performance. Adequate design is highly required achieve user-designated working windows without sacrificing high sensitivity, accompanied real-time data processing. Herein, Ti 3 C 2 T x MXene modules are fabricated in-sensor machine learning (ML) models, either functioning via wireless streaming or edge computing, classifications and avatar reconstruction. Through topographic on piezoresistive nanolayers, exhibited ultrahigh sensitivities within meet all joint ranges. By integrating a ML chip, an module fabricated, enabling reconstruction high-precision animations mimic continuous motions average determination error 3.5 cm, additional computing devices.

Language: Английский

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Next-Generation Intelligent MXene-Based Electrochemical Aptasensors for Point-of-Care Cancer Diagnostics

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

Published: April 11, 2022

Delayed diagnosis of cancer using conventional diagnostic modalities needs to be addressed reduce the mortality rate cancer. Recently, 2D nanomaterial-enabled advanced biosensors have shown potential towards early The high surface area, functional groups availability, and excellent electrical conductivity MXene make it material choice for fabrication electrochemical disease diagnostics. MXene-enabled aptasensors great promise detection biomarkers with a femtomolar limit detection. Additionally, stability, ease synthesis, good reproducibility, specificity offered by hold mainstream approach. In this review, design MXene-based been discussed. Besides, various synthetic processes useful properties MXenes which can tuned optimized easily efficiently fabricate sensitive elucidated. Further, futuristic sensing applications along challenges will deliberated herein.

Language: Английский

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A Stretchable, Breathable, And Self‐Adhesive Electronic Skin with Multimodal Sensing Capabilities for Human‐Centered Healthcare

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(44)

Published: July 7, 2023

Abstract Electronic skins (E‐skins) capable of biomechanical/bioelectrical signal acquisition are intensively pursued for human‐centered healthcare daily life. For practical use, it is highly desired, yet challenging, to mass‐produce E‐skins that soft and breathable wearing comfort, skin‐adhesive robust acquisition, multi‐signal sensing enhanced data. Herein, a scalable fabrication strategy bioinspired E‐skin (SPRABE‐skin) with multi‐layered architecture reported integrates skin‐like softness, self‐protection, self‐adhesion, breathability, bimodal in single patch. The fibrous thermoplastic polyurethane (TPU) scaffold endows the SPRABE‐skin tissue‐like softness (Young's modulus 3.36 MPa) stretchability, good permeability water vapor, self‐protection against adverse loading events. A strain layer composed MXene‐carbon nanotubes@TPU (MXene‐CNT@TPU) composition exhibits ultra‐high sensitivity wide range (gauge factor at 485% reaches 63 494). An electrode made MXene‐waterborne (MXene‐WPU) provides adhesive electrode‐skin interface, which enables biopotentials, such as electrocardiograph (ECG), electromyograph (EMG), electroencephalo‐graph (EEG), improved fidelity even under various dynamic interferences. Finally, based system demonstrated realizes wireless, long‐duration, monitoring ECG running activities.

Language: Английский

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Carbon Nanotube‐Based Strain Sensors: Structures, Fabrication, and Applications

Advanced Materials Technologies, Journal Year: 2022, Volume and Issue: 8(1)

Published: Sept. 15, 2022

Abstract Flexible strain sensors have received widespread attention because of their great potential in many fields. Carbon nanotubes (CNTs) been used as conductive materials for flexible due to excellent electrical and mechanical properties, the fabricated sensing performance. This paper systematically summarizes advances resistance‐type based on CNTs. The mechanisms are introduced, including crack extension, tunneling effect, disconnection overlapping materials. performance parameters sensors, sensitivity, stretchability, linearity, hysteresis, dynamic durability, transparency, discussed comprehensively. coating methods, 3D printing techniques, chemical vapor deposition, transfer spinning processes fabricate CNT highlighted. effect isolated porous internal structures, folded microcracked surface films fabrics macroscopic structures sensor were analyzed. applications medical health, motion monitoring, gesture recognition, human–computer interaction, soft robotics provided detail. Finally, future challenges summarized outlook is presented. Although made progress so far, there still problems that need researchers’ solutions.

Language: Английский

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Heterogeneous Structure Omnidirectional Strain Sensor Arrays With Cognitively Learned Neural Networks

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(13)

Published: Jan. 5, 2023

Mechanically stretchable strain sensors gain tremendous attention for bioinspired skin sensation systems and artificially intelligent tactile sensors. However, high-accuracy detection of both intensity direction with simple device/array structures is still insufficient. To overcome this limitation, an omnidirectional perception platform utilizing a sensor array triangular-sensor-assembly (three tilted by 45°) coupled machine learning (ML) -based neural network classification algorithm, proposed. The sensor, which constructed strain-insensitive electrode regions strain-sensitive channel region, can minimize the undesirable electrical intrusion from electrodes strain, leading to heterogeneous surface structure more reliable sensing characteristics. exhibits decent sensitivity gauge factor (GF) ≈8, moderate range (≈0-35%), relatively good reliability (3000 stretching cycles). More importantly, employing multiclass-multioutput behavior-learned cognition highly accurate recognition arbitrary interpretating correlated signals three-unit its algorithm overall accuracy around 98% ± 2% over ≈0-30% in various stimuli environments.

Language: Английский

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Tuning MXene electrical conductivity towards multifunctionality

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146361 - 146361

Published: Oct. 2, 2023

Language: Английский

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