MultiDimensional Bionic Structure-based Superhydrophobic and Stretchable Yarn Sensor for Motion Monitoring

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: 8(5), P. 2432 - 2442

Published: Jan. 21, 2025

The trade-off between electrical conductivity and mechanical flexibility in fiber sensors impedes their widespread adoption. During sports activities, extensive exposure to body sweat leads a decline the performance of sensors. A multidimensional biomimetic superhydrophobic yarn sensor was prepared, utilizing polyurethane (PU) as core dopamine-modified MXene sheath. This achieved by drawing inspiration from structure cerebral cortex combine unique plate-tile Nepenthes. Its surface bionic microstructure constructed increase number conductive connection points, resulting plate tile realizing high sensitivity ultrahigh hydrophobicity sensor. final prepared exhibited low resistance (0.6 KΩ), (3397.6), characteristics (contact angle = 135.3°). Integrating yarns with polyamide knit fabric, fabric are designed effectively detect minor muscle movements. capability is essential for precise movement monitoring ensuring prompt medical assistance patients severe injuries. approach enhances yarn-based stretch implementing multistage structure. Additionally, it remains unaffected when integrated into athlete fabrics, thereby accuracy.

Language: Английский

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Bioinspired Intelligent Electronic Skin for Medicine and Healthcare

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

Published: Feb. 5, 2025

Abstract Intelligent electronic skin aims to mimic, enhance, and even surpass the functions of biological skin, enabling artificial systems sense environmental stimuli interact more naturally with humans. In healthcare, intelligent is revolutionizing diagnostics personalized medicine by detecting early signs diseases programming exogenous for timely intervention on‐demand treatment. This review discusses latest progress in bioinspired its application healthcare. First, strategies development simulate or human are discussed, focusing on basic characteristics, as well sensing regulating functions. Then, applications health monitoring wearable therapies illustrating potential provide warning Finally, significance bridging gap between emphasized challenges future perspectives summarized.

Language: Английский

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Skin‐Tailored Adhesive Bio‐Electrode with Tunable Poisson's Ratio for Stable Electrophysiological Communication

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Abstract Stretchable electrodes are crucial healthcare device components for electrophysiology signal sensing. Compared to conventional rigid gel electrodes, stretchable advantageous long‐term monitoring with superior skin conformality. However, current devices often show limited compliance and adhesive reliability, especially during human motion. Here, a skin‐tailored bio‐electrode (STABL) is fabricated using substrate designed comply the deformation behavior of wrist skin. The patch possesses negative Poisson's ratio (PR) through an auxetic structured glass fabric reinforcement embedded in soft, elastomer film. Based on direct measurement behavior, chemical composition geometry optimized match PR Using this tailored substrate, STABL EGaIn liquid metal conductors exhibits stability communication repetitive motion compared pristine PDMS substrates. This result highlights potential substrates reliable, wearable bioelectronics applications.

Language: Английский

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Deep-Learning-Based Analysis of Electronic Skin Sensing Data

Sensors, Journal Year: 2025, Volume and Issue: 25(5), P. 1615 - 1615

Published: March 6, 2025

E-skin is an integrated electronic system that can mimic the perceptual ability of human skin. Traditional analysis methods struggle to handle complex e-skin data, which include time series and multiple patterns, especially when dealing with intricate signals real-time responses. Recently, deep learning techniques, such as convolutional neural network, recurrent transformer methods, provide effective solutions automatically extract data features recognize significantly improving data. Deep not only capable handling multimodal but also response personalized predictions in dynamic environments. Nevertheless, problems insufficient annotation high demand for computational resources still limit application e-skin. Optimizing algorithms, efficiency, exploring hardware-algorithm co-designing will be key future development. This review aims present techniques applied inspiration subsequent researchers. We first summarize sources characteristics models applicable their applications analysis. Additionally, we discuss use e-skin, particularly health monitoring human-machine interactions, explore current challenges development directions.

Language: Английский

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A Low-Cost Hydrogel Electrode for Multifunctional Sensing: Strain, Temperature, and Electrophysiology

Biosensors, Journal Year: 2025, Volume and Issue: 15(3), P. 177 - 177

Published: March 11, 2025

With the rapid development of wearable technology, multifunctional sensors have demonstrated immense application potential. However, limitations traditional rigid materials restrict flexibility and widespread adoption such sensors. Hydrogels, as flexible materials, provide an effective solution to this challenge due their excellent stretchability, biocompatibility, adaptability. This study developed a sensor based on composite hydrogel polyvinyl alcohol (PVA) sodium alginate (SA), using poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT:PSS) conductive material achieve detection strain, temperature, physiological signals. The features simple fabrication process, low cost, impedance. Experimental results show that prepared exhibits outstanding mechanical properties conductivity, with strength 118.8 kPa, elongation 334%, conductivity 256 mS/m. In strain sensing, demonstrates response minor strains (4%), high sensitivity (gauge factors 0.39 for 0–120% 0.73 120–200% ranges), short time (2.2 s), hysteresis, cyclic stability (over 500 cycles). For temperature achieves sensitivities −27.43 Ω/K (resistance mode) 0.729 mV/K (voltage mode), along stable performance across varying ranges. Furthermore, has been successfully applied monitor human motion (e.g., finger bending, wrist movement) signals electrocardiogram (ECG), electromyogram (EMG), electroencephalogram (EEG), highlighting its significant potential in health monitoring. By employing efficient method, presents high-performance sensor, offering novel insights technical support advancement devices.

Language: Английский

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Wearable, Wireless, Stretchable, High‐Density Surface Electromyography Interface

Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown

Published: May 4, 2025

Abstract Surface electromyography (sEMG) provides rich neural information as the human‐machine interfaces. However, it is still challenging to achieve wearable sEMG‐based interfaces, owing non‐conformal electrode arrays and bulky monitoring systems. Herein, a wearable, wireless, high‐density sEMG interface incorporating soft multi‐channel minimized signal circuit presented. The stretchable (≈150%) array fabricated by 3D printing silver paste onto adhesive (0.37 N cm −1 ) silicone‐based substrates demonstrates capability of eliminating artifacts in dynamic hand motions. with customize wireless further integrated for real‐time recording eight‐channel signals on deforming skin. Using this conformal system, various wrist‐hand gesture recognition achieved through single flexor digitorum superficialis (FDS) muscle detection. also enables high‐precision under exercises upper lower limbs, exploring diverse applications interaction daily healthcare.

Language: Английский

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