Fishbone and nettle fiber inspired stretchable strain sensor with high sensitivity and wide sensing range for wearable electronics

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152281 - 152281

Published: May 15, 2024

Language: Английский

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Breaking the Saturation of Sensitivity for Ultrawide Range Flexible Pressure Sensors by Soft‐Strain Effect

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

Published: July 26, 2024

Abstract The flexible pressure sensors with a broad range and unsaturated sensitivity are highly desired in practical applications. However, by piezoresistive effect always limited the compressibility of sensing layers, resulting theoretically decreasing less than 100%. Here, unique strategy is proposed that utilizes strain effect, simultaneously achieving trade‐off between wider detection sensitivity. Ascribed to layers induced interlaced microdomes, possess an increased (5.22–70 MPa −1 ) over ultrawide (45 Pa–4.1 MPa), high‐pressure resolution (5 Pa), fast response/recovery time (30/45 ms), robust response under loading 3.5 for more 5000 cycles. These superior performances allow sensor monitor large pressure. array can assist doctors restoring neutral mechanical axis, tracking knee flexion angles, extracting gait features. Moreover, be integrated into joint motion surveillance system map balance medial–lateral contact forces on metal compartments real time, demonstrating potential further development precise medical human–machine interfaces during total replacement surgery.

Language: Английский

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Ag–thiolate interactions to enable an ultrasensitive and stretchable MXene strain sensor with high temporospatial resolution

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 25, 2024

Abstract High-sensitivity strain sensing elements with a wide range, fast response, high stability, and small areas are desirable for constructing sensor arrays temporospatial resolution. However, current sensors rely on crack-based conductive materials having an inherent tradeoff between their area performance. Here, we present molecular-level crack modulation strategy in which use layer-by-layer assembly to introduce strong, dynamic, reversible coordination bonds MXene silver nanowire-matrixed film. We this approach fabricate stretchable very (0.25 mm 2 ). It also exhibits ultrawide working range (0.001–37%), sensitivity (gauge factor ~500 at 0.001% >150,000 35%), response time, low hysteresis, excellent long-term stability. Based high-performance element facile process, array device density of 100 per cm is realized. demonstrate the practical high-density as multichannel pulse system monitoring pulses terms spatiotemporal

Language: Английский

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A fully integrated multifunctional flexible sensor based on nitrile rubber/carbon nanotubes/graphene composites for smart tire

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150104 - 150104

Published: Feb. 29, 2024

Language: Английский

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Elastic Janus Microarray Film Strain Sensors with Heterogeneous Modulus and Conductivity for Healthcare and Braille Identification

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(30)

Published: April 3, 2024

Abstract Most stretchable film strain sensors generally present nonlinear electrical responses to applied strain, leading an inaccurate acquisition of sophisticated signals, difficult signal processing, and zero‐calibration, which hampers practical applications severely. Here, a Janus hetero‐structured microarray sensor is developed by in‐situ growth silver nanoparticles on the surface micro‐patterned elastomer films fabricated via low‐temperature imprinting followed scraping‐induced particle trapping. Heterogeneous property designs in both modulus conductivity introducing polymer microarrays enable modulating electron transport manner conductive layer elastic upon stretching, allowing tune linearity effectively. Therefore, such shows good (fluctuation gauge factor [GF] below ±0.02) relatively high sensitivity (GF > 10) within 55% detection limit 0.2% response/recovery time 16.3/46.9 ms, respectively. Correspondingly, it enables monitoring human respiration body motion with higher resolution compared one, meanwhile, capable detecting tiny pressure discriminate braille alphabets touch identification. Overall, unveils simple strategy fabricate for high‐resolution healthcare monitoring, as well electronic skins toward tactile sensing

Language: Английский

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Full‐Range On‐Body Strain Sensor of Laser‐Induced Graphene Embedded in Thermoplastic Elastomer via Hot Pressing Transfer for Monitoring of the Physiological Signals

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: 9(7)

Published: Feb. 12, 2024

Abstract Acquiring physical and mechanical strain information of the human body with wearable sensors can provide essential data from personal healthcare to human‐machine interfaces others. Recent research reveals that CO 2 laser scribing convert polyimide films into porous graphene sponges under ambient atmospheres. However, electrically conductive laser‐induced (LIG) film mismatches tough rigid plastic substrates when it is employed as stretchable sensors. In this work, by leveraging advantageous properties atoms‐level configured defects within crystalline LIG heat transfer printing techniques, a flexible LIG‐SEBS (styrene‐ethylene‐butylene‐styrene) sensor made. It able achieve exceptional electromechanical including remarkable sensitivity in terms gauge factor (413–3118), minimal hysteresis, broad range (>100% strain). Meanwhile, SEBS‐LIG has stable fast dynamic response good repeatability. Additionally, be integrated wireless communication module for remote monitoring physiological signals real‐time manner smartphone App.

Language: Английский

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Bioinspired Stretchable Strain Sensor with High Linearity and Superhydrophobicity for Underwater Applications

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

Published: Oct. 4, 2024

Abstract Flexible strain sensors are of great significance in health monitoring, wearable electronic devices, intelligent robot sensing, and other fields. Most the reported works focus on enhancement sensitivity or working range, while linearity is ignored exhibits strong nonlinearity. Conflict among performances remains a serious challenge for development flexible sensors. Herein, inspired by architecture butterfly's wings, sensor with double conductive layers wrinkles/holes structures proposed. The fabricated shows high >0.98 over full range 120%, up to 0.999 within 0%–30%. Apart from that, also presents 8.28, stability 40 000 cycles when subjected full‐scale strain, as well water contact angle >167.4°. Meanwhile, strains low 0.075% can be identified, maximum frequency Hz responded sensor. It demonstrated that capable enabling grippers sense monitor motions underwater vehicles, indicating its greater potential diverse applications, such human–machine interaction, marine environmental protection, biological research.

Language: Английский

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Building a multi-performance wearable rubber-based strain sensor: for human motion capture, optical heating and underwater sensing

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120274 - 120274

Published: April 1, 2025

Language: Английский

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High performance fully-printed strain-sensing e-textile for human posture recognition

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146197 - 146197

Published: Sept. 24, 2023

Language: Английский

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Highly aligned electrospun film with wave-like structure for multidirectional strain and visual sensing

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149952 - 149952

Published: Feb. 23, 2024

Language: Английский

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