A strain-resistant flexible thermistor sensor array based on CNT/MXene hybrid materials for lithium-ion battery and human temperature monitoring

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 368, P. 115059 - 115059

Published: Jan. 21, 2024

Language: Английский

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Adaptive Exoskeleton Device for Stress Reduction in the Ankle Joint Orthosis

Sensors, Journal Year: 2025, Volume and Issue: 25(3), P. 832 - 832

Published: Jan. 30, 2025

Treating ankle fractures in athletes, commonly resulting from training injuries, remains a significant challenge. Current approaches to managing both non-surgical and postoperative foot disorders have focused on integrating sensory systems into orthotic devices. Recent analyses identified several gaps rehabilitation strategies, especially regarding gait pattern reformation during recovery. This work aims enhance effectiveness for patients with injuries by controlling load distribution monitoring joint flexion/extension angles, as well the reactive forces therapeutic exercises walking. We developed an exoskeleton device model using SolidWorks 2024 software, based data two patients: one healthy fracture. Pressure measurements posterior limb region were taken F-Socket system custom electromechanical sensor designed authors. The collected analyzed butterfly parameterization method. research led development of adaptive that provided pressure data, cycle graphs, diagram correlating angles duration use. demonstrated improvement patients’ conditions, facilitating more normalized pattern. A reduction applied was also observed, parameter confirming device’s correct operation.

Language: Английский

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Nonlinear vibration analysis of sandwich plates with inverse-designed 3D auxetic core by deep generative model

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: unknown, P. 112599 - 112599

Published: Oct. 1, 2024

Language: Английский

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A Strain-Resistant Flexible Thermistor Sensor Array Based on Cnt/Mxene Hybrid Materials for Lithium-Ion Battery and Human Temperature Monitoring

Published: Jan. 1, 2023

Flexible thermistor sensors (FTSs) are well-suited for myriad applications involving strain and dynamic temperature monitoring due to the outstanding thermosensitive performance flexibility but still challenging. In this study, a novel FTS is proposed based on hybrid materials of carbon nanotubes (CNTs) MXene, integrated with an innovative flexible substrate (paper/polydimethylsiloxane (PDMS)/Si3N4 nanoparticles), which achieves low cost, stain resistance results in wide detection range (-20 220 °C) superior thermosensitivity (-0.52% °C⁻¹), exceptional resolution (~ 0.3°C), rapid response recovery times (~300ms 3s, respectively), excellent mechanical durability (withstanding 2000 bending fatigue cycles). And excel diverse conditions like compression, underwater, curved surfaces. Additionally, optimal achieved 1:2 ratio CNT MXene. Mechanistic analysis reveals that addition can effectively adjust interlayer spacing enhancing its electrical properties. Furthermore, 2x2 array successfully applied comprehensive lithium-ion batteries (LiBs), as well human body environmental temperatures wearable devices. This technology offers high sensitivity real-time recognition, providing possibilities monitoring, medical electronics, electric vehicles.

Language: Английский

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Optimizing Stretchability and Electrical Stability in Bilayer-Structured Flexible Liquid Metal Composite Electrodes

Micromachines, Journal Year: 2024, Volume and Issue: 15(12), P. 1467 - 1467

Published: Nov. 30, 2024

Gallium-based liquid metals remain in a state at room temperature and exhibit excellent electrical thermal conductivities, low viscosity, toxicity, making them ideal for creating highly stretchable conductive composites suitable flexible electronic devices. Despite these benefits, conventional single-layer metal face challenges, such as leakage during deformation (e.g., stretching or bending) limited elongation due to incomplete integration of the within elastomer matrix. To address limitations, we introduced bilayer structure into composites, comprising lower polydimethylsiloxane (PDMS) layer an upper PDMS-liquid mixed layer. In layer, precipitates, forming network spanning both layers. This composite demonstrated significantly improved stretchability compared pure PDMS composites. Additionally, by adjusting size content particles, optimized composite’s mechanical properties. Under optimal conditions, spherical particles deform elliptical shapes under tensile stress, increasing pathways reducing resistance. The combined effects particle shape enhanced elongation, supporting its potential electronics applications.

Language: Английский

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A Flexible Sensing Material with High Force and Thermal Sensitivity Based on GaInSn in Capillary Embedded in PDMS

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3426 - 3426

Published: Dec. 5, 2024

Flexible sensing materials have become a hot topic due to their sensitive electrical response external force or temperature and promising applications in flexible wear human-machine interaction. In this study, PDMS/capillary GaInSn material with high thermal sensitivity was prepared utilizing liquid metal (LM, GaInSn), silicone capillary, polydimethylsiloxane (PDMS). The resistance (

Language: Английский

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