An ultra-stretchable fiber sensor with high linearity and durability via thermal drawing DOI Creative Commons
Shao‐Yun Fu, Xiaxia Cheng, Jiawei Liu

et al.

International Journal of Smart and Nano Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 16

Published: Dec. 18, 2024

With the fast-evolving landscape of flexible and wearable electronics, functional fibers for withstanding high strains in smart wearables, soft robotics, health monitoring systems are under increasing demands. We report ultra-stretchable conductive with a thermal drawing process, controlled engineered precise motion sensing. This approach enables uniform microcavities, facilitating scalable production elastic through simple fabrication process. Integrating liquid metal (Eutectic Gallium-Indium-Tin alloys) into fiber yielded device gauge factor (GF) 0.91, remarkable linearity (R2 = 0.999), rapid response time (100 ms), low hysteresis (<3%) up to 1000% strain. The SFCSS could be readily integrated textiles, such as gloves clothing, enabling detection wide range human motions, including static sensing finger motion, knee posture dynamic activities standing, sitting, squatting, walking, running. Additionally, demonstrated effectiveness measuring boundary-lengths irregular objects, supporting applications robotics. capacitive strain sensor developed this work provides new enable electronics textiles upcoming era interactive human-machine interfaces digital healthcare.

Language: Английский

Improved Morse Code Recognition and Real-Time Translation System Based on a Low-Cost, Tailorable Flexible Capacitive Sensor DOI
Feilu Wang, Hao Wang, Lang Wu

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: 7(1), P. 388 - 399

Published: Jan. 3, 2025

The increasing demand for flexible wearable electronic devices has prompted the rapid development of pressure sensors capable monitoring a range human movements and physiological signals. However, an number studies are requiring with high performance while also seeking low-cost, large-scale, or even disposable manufacturing methods. In this study, we propose capacitive sensor based on tailorable materials. employs polyurethane sponge coated inert metals, namely copper nickel (Cu@Ni/PUS), as electrodes polyimide (PI) film dielectric layer. prepared exhibit sensitivity (0–17.5 kPa, 49.14% kPa–1), response time (80 ms), low hysteresis (6.49%), stability. Furthermore, Cu@Ni/PUS was integrated into insulated glove, innovative, improved Morse code encoding scheme developed. By combining CNN-TCN dual-channel neural network model, achieved high-precision classification 26 alphabet letters (99.20%), providing method high-efficiency transmission using tactile sensors. Based these findings, developed real-time translation system that completes encryption decryption gestures. experimental results demonstrate research broad application prospects in accessible human–computer interaction individuals disabilities.

Language: Английский

Citations

1
Unlocking Novel Functionality: Pseudocapacitive Sensing in MXene-Based Flexible Supercapacitors DOI Creative Commons
Eunji Kim, Seongbeen Kim, Hyeong Min Jin

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Dec. 9, 2024

Extensively explored for their distinctive pseudocapacitance characteristics, MXenes, a distinguished group of 2D materials, have led to remarkable achievements, particularly in the realm energy storage devices. This work presents an innovative Pseudocapacitive Sensor. The key lies switching kinetics from pseudocapacitor electrical double layer capacitor by employing change local pH (-log[H

Language: Английский

Citations

4
Soft Materials and Devices Enabling Sensorimotor Functions in Soft Robots DOI

Jiangtao Su,

Ke He, Yanzhen Li

et al.

Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Sensorimotor functions, the seamless integration of sensing, decision-making, and actuation, are fundamental for robots to interact with their environments. Inspired by biological systems, incorporation soft materials devices into robotics holds significant promise enhancing these functions. However, current systems often lack autonomy intelligence observed in nature due limited sensorimotor integration, particularly flexible sensing actuation. As field progresses toward soft, flexible, stretchable materials, developing such becomes increasingly critical advanced robotics. Despite rapid advancements individually devices, combined applications enable capabilities emerging. This review addresses this emerging providing a comprehensive overview that functions robots. We delve latest development technologies, actuation mechanism, structural designs, fabrication techniques. Additionally, we explore strategies control, artificial (AI), practical application across various domains as healthcare, augmented virtual reality, exploration. By drawing parallels aims guide future research robots, ultimately adaptability unstructured

Language: Английский

Citations

0
Capacitive Stretch Sensors for Knee Motion and Muscle Activity Tracking for Gait Analysis DOI Creative Commons

Fei Huang,

Yuting Zhu, Lei Shi

et al.

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116574 - 116574

Published: April 1, 2025

Language: Английский

Citations

0
Next-gen strain sensors: self-healing, ultra-sensitive, lightweight, and durable MWCNT-silicone rubber for advanced human motion tracking DOI Creative Commons
Muhammad Luthfi Hakim,

Herianto Herianto,

Muhammad Akhsin Muflikhun

et al.

Journal of Engineering Research, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

3
Design, Fabrication, and Application of Large-Area Flexible Pressure and Strain Sensor Arrays: A Review DOI Creative Commons

Xikuan Zhang,

J. W. Chai,

Y. H. Zhan

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(3), P. 330 - 330

Published: March 12, 2025

The rapid development of flexible sensor technology has made arrays a key research area in various applications due to their exceptional flexibility, wearability, and large-area-sensing capabilities. These can precisely monitor physical parameters like pressure strain complex environments, making them highly beneficial for sectors such as smart wearables, robotic tactile sensing, health monitoring, electronics. This paper reviews the fabrication processes, operational principles, common materials used sensors, explores application different materials, outlines two conventional preparation methods. It also presents real-world examples large-area arrays. Fabrication techniques include 3D printing, screen laser etching, magnetron sputtering, molding, each influencing performance ways. Flexible sensors typically operate based on resistive capacitive mechanisms, with structural designs (e.g., sandwich fork-finger) affecting integration, recovery, processing complexity. careful selection materials—especially substrates, electrodes, sensing materials—is crucial efficacy. Despite significant progress design application, challenges remain, particularly mass production, wireless real-time data processing, long-term stability. To improve production feasibility, optimizing reducing material costs, incorporating automated lines are essential scalability defect reduction. For enhancing energy efficiency through low-power communication protocols addressing signal interference stability critical seamless operation. Real-time requires innovative solutions edge computing machine learning algorithms, ensuring low-latency, high-accuracy interpretation while preserving flexibility Finally, environmental adaptability demands new protective coatings withstand harsh conditions. Ongoing overcoming these challenges, that meet needs diverse remaining cost-effective reliable.

Language: Английский

Citations

0
Modelling and Optimisation of Hysteresis and Sensitivity of Multicomponent Flexible Sensing Materials DOI Creative Commons
Kai Chen,

Qiang Gao,

Yijin Ouyang

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(6), P. 3271 - 3271

Published: March 17, 2025

The development of high-performance polymeric sensing materials is urgently needed for the force sensors. Hysteresis and sensitivity are considered to be one two key metrics evaluating performance sensors, their performance-influencing factors optimisation models have not been addressed. In this paper, a new Kepler algorithm (HKOA) long short-term memory network model (HKOA-LSTM) based on HKOA proposed, analytical hysteresis derived, respectively. First, multifactor experiments were conducted obtain experimental data prediction models; constructed using response surface methodology (RSM), Random Forest (RF), (LSTM) network, HKOA-LSTM. Next, four evaluated; comparison results show that HKOA-LSTM performs best. Finally, optimal solution obtained multi-objective RIME (MORIME) algorithm. findings indicate 3.279% an average 0.046 kPa⁻1 across broad pressure range 0–30 kPa when Fe₃O₄ content 0.665 g, carbon nanotube (CNT) 1.098 multilayer graphene (MLG) 0.99 moulding temperature (MT) 67 °C. simulation outcomes closely align with test values, exhibiting relative errors 0.765% 0.434%, Furthermore, in study shows significant enhancement compared prior research, improved by 31% increased 26%. This approach enhances efficiency reduces costs. It also offers novel strategy large-scale, rapid fabrication flexible sensor materials.

Language: Английский

Citations

0
Fully 3D Printed Capacitive Bending Sensor Enabled by 3D Structuring DOI
Ryan van Dommelen, D. Briand

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

Published: April 15, 2025

Abstract Advancing 3D printing fabrication methodologies can enable customized wearables and robotic sensing systems with novel architectures, tuned mechanical properties, higher feature density. In this work, a design approach is developed used to produce soft elastomeric capacitive sensor conceived measure bending motions. Analytical finite element modeling are create non‐intrusive that the angle of joint independent direction. Transduction achieved by printed angular features, integrated silver plates, fabricated Direct Ink Writing (DIW) shear thinning UV‐curable silicone ink. The achieves sensitivity 2.50 ± 0.04 fF/° detects direction, matching model. This work makes significant contribution fully 3D‐printed electronics, enabling devices architectures functionalities.

Language: Английский

Citations

0
High-Performance Flexible Strain Sensor Based on Thermoplastic Polyurethane Melt-Blown Nonwoven with Molybdenum Disulfide for Human Motion Monitoring DOI
Hui Sun,

Youxiu Xie,

Xinyu Liu

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Language: Английский

Citations

2
Liquid Metal-Based Dual-Response Pressure Sensor for Dual-Modality Sensing and Robotic Object Recognition DOI Creative Commons
Yanru Bai, Zhi Wang, Yizhuo Zhang

et al.

Bioengineering, Journal Year: 2024, Volume and Issue: 11(12), P. 1211 - 1211

Published: Nov. 29, 2024

Characterized by their high sensitivity and flexible deformation, pressure sensors have been extensively applied in various fields such as wearable electronics, health monitoring, soft robotics, human–computer interaction. In this research, we developed a dual-response sensor (DRPS) designed to identify object materials. By integrating the operating principles of capacitive resistive employing microstructured dielectric layers, enhanced detection range sensor. Additionally, research introduced an innovative, simple, cost-effective method for preparing sensors. Following comprehensive performance evaluation, DRPS exhibited sensitivity, broad range, robust stability. Finally, utilizing mechanical claw equipped with intelligent perception data collection system, effectively distinguished materials, further corroborating practicality applications.

Language: Английский

Citations

2