Wearable Resistive‐Type Stretchable Strain Sensors: Materials and Applications

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Abstract The rapid advancement of wearable electronics over recent decades has led to the development stretchable strain sensors, which are essential for accurately detecting and monitoring mechanical deformations. These sensors have widespread applications, including movement detection, structural health monitoring, human–machine interfaces. Resistive‐type gained significant attention due their simple design, ease fabrication, adaptability different materials. Their performance, evaluated by metrics like stretchability sensitivity, is influenced choice strain‐sensitive This review offers a comprehensive comparison evaluation materials used in resistive metal semiconductor films, low‐dimensional materials, intrinsically conductive polymers, gels. also highlights latest applications motion healthcare interfaces examining device physics material characteristics. comparative analysis aims support selection, application, tailored specific applications.

Language: Английский

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Tannic acid facilitated layer-by-layer nanoarchitectonics for hydrophobic conductive cotton fabric with improved stability for thermal management and flexible sensing

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 301, P. 140493 - 140493

Published: Jan. 29, 2025

Language: Английский

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Nanofibrous PVDF-Based Smart Flexible Fabrics with High Piezoelectric Properties for Human Motion Monitoring

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Language: Английский

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A novel mesoscopic modeling method of triaxial woven fabric composites considering yarn-yarn contact geometry

Composite Structures, Journal Year: 2025, Volume and Issue: unknown, P. 119247 - 119247

Published: May 1, 2025

Language: Английский

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Intelligent Thermoelectric Sensing with Sustainable Strain‐Hardening Geopolymeric Composites

Small Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Traditional thermoelectric (TE) building materials are limited in both performance and durability, requiring enhancements for effective energy solutions. This research investigates strain‐hardening geopolymeric composites (SHGC) TE sensing applications. The influence of metal oxides on mechanical strength characteristics is evaluated using isothermal calorimetry, computed tomography scanning, focused ion beam (FIB)–transmission electron microscopy analysis. At ambient temperature, SHGC samples with MnO 2 exhibit the highest Seebeck coefficient 5470 μV K −1 a measured power density 29 μW m −2 . Despite presence small strain cracks, maintains about 69% its original ZT value even after long‐term use. discovery underlines durability efficiency SHGC, demonstrating their potential future infrastructure cost‐effectiveness, temperature‐sensing abilities, environmental advantages make them well suited large‐scale smart

Language: Английский

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One stone kills two birds: Novel recycled fiber spinning engineering for one-step yarn reinforcement and clean dyeing

Fundamental Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Nanoarchitectonics of High-Performance and Flexible n-Type Organic–Inorganic Composite Thermoelectric Fibers for Wearable Electronics

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Since most conductive polymers are p-type, developing high-performance n-type organic–inorganic composite thermoelectric (TE) fibers is a great challenge. Herein, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)-coated Ag2Te nanowires (PC-Ag2Te NWs) were prepared by liquid-phase reaction using PEDOT:PSS-coated Te (PC-Te as templates, and the PEDOT:PSS/PC-Ag2Te NWs then wet spinning. As content of PC-Ag2Te increases, fiber changes from p-type to n-type. The PEDOT: PSS coating greatly improves dispersibility in matrix, resulting an ultrahigh 87.5 wt % fibers, which exhibited Seebeck coefficient −61.3 μV K–1 power factor 65.3 μW m–1 K–2. value higher than those previously reported TE fibers. Contrary estimated thermal conductivity other reports, this work, was measured via transient photoelectrothermal (TPET) technique. In addition, has good tensile properties mechanical strength, elongating at break 47.37% stress 6.59 MPa. For application demonstration, self-powered temperature sensor assembled, can utilize vertical difference between human body environment respond quickly small difference.

Language: Английский

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N-Type Silver Selenide Thermoelectric Cotton Thread for Antibacterial and Versatile Textile Electronics

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Thermoelectric textiles have garnered significant attention in energy harvesting and temperature sensing due to their comfort reliable long-term power generation capabilities. However, existing thermoelectric rarely realize antibacterial, high output performance, capabilities simultaneously. Here, we present a facile scalable method for fabricating n-type silver selenide (Ag2Se) cotton threads with exceptional output, advanced The Ag-Ag2Se segmented structures are prepared using the selenization method. Subsequently, textile consisting of 50 pairs p-n legs is fabricated, which can generate density 500 μW m-2 at difference 30 K, it provide an voltage 24.7 mV when worn on arm room temperature. textile-based sensor exhibits detection (0.7 K) response time (2.49 s). Integrating Ag2Se onto enables utilization multipixel touchpads writing communication. Additionally, these sensors be incorporated into gloves accurately detect surrounding objects' temperatures. This thread not only facilitates but also establishes solid foundation widespread application multifunctional electronics.

Language: Английский

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Structural Design and Performance of Cut-Resistant Fabrics with Concave–Convex Arrays

Polymers, Journal Year: 2024, Volume and Issue: 16(15), P. 2137 - 2137

Published: July 27, 2024

As the risk of social security increases, it is crucial to develop flexible protective materials that combine flexibility with high performance. Ultra-high-molecular-weight polyethylene (UHMWPE) was selected as raw material, and four types flat-knitting cut-resistant fabrics were ultimately designed prepared from a three-dimensional longitudinal dimension concave–convex array structure based on rib knitting. A series experiments must be conducted in order study law protection performance different structural fabrics. They thus subjected comprehensive evaluation theoretical analysis cut resistance. The results demonstrate exhibited resilience abrasion tests, withstanding over 100,000 cycles without failure. weighting algorithm employed determine cutting resistance S1, S2, S3, S4 fabrics, resulting values 1939.9 gf, 2298.6 2577.1 2822.2 respectively. Therefore, S1 reached class A4, which sufficient address medium hazard. Similarly, A5, adequate obtained fitting equation, uniform yarn fineness T dependent variable, demonstrates improved density level increased.

Language: Английский

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Flexible Bridged Thermoelectric Device with an Optimized Heatsink for Personal Thermal Management

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(46), P. 64042 - 64049

Published: Nov. 6, 2024

A wearable thermoelectric cooler (TEC) for personal thermal management exhibits significant growth in numerous applications comfort and saving the energy consumed by space cooling. Most TECs provide a large cooling performance with assistance of rigid heatsinks electrodes, limiting wearability practical implementation. Here, we design propose flexible bridged TEC high heatsink spray-printed liquid metal electrodes. The system combines bendable heatsink, thermally insulative TE layer, bottom conductive layer. Especially, composed foam, phase change material, fin structure greatly enhances conduction, storage, diffusion capacities. Our desired comfortability obtains an ideal temperature drop 3 °C on human skin. Also, it could work as self-generator providing 45 mV ΔT 5 °C, which improves generation efficiency more than times due to stable difference between two sides. This provides effective way develop devices paves achieving practical, personalized applications.

Language: Английский

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