Crosslinking‐Modulated Hydrogel Piezoionic Senor for Pattern Security Authentication in Human‐Machine Interfaces DOI Open Access
Yue Sun, Guo Tian, Tao Yang

et al.

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

Published: Dec. 27, 2024

Abstract Ionic hydrogels are uniquely suited as force‐sensing layers because of their good biocompatibility and controlled electromechanical properties. The emerging piezoionic effect allows them to sense the position pressure, but low response rate limits applications. Herein, this work focuses on modulating time outputs through crosslinking. underlying mechanism is investigated perspective deformation recovery ion migration behavior in ionic hydrogels. As a result, developed sensors capable distinguishing static forces range 0.1–5 s while monitoring dynamic force, breaking limitations conventional self‐powered pressure that have trouble tracking forces. Furthermore, by utilizing convert touch indentation into transverse gradient potential, constructed achieve accurate finger pressing sliding trajectory. proof‐of‐concept, pattern unlocking security authentication successfully validated based sensors. This design strategy tactile sensor crosslinking expected provide fresh path for large‐scale flexible human‐machine interfaces.

Language: Английский

Intelligent Wind Vector Monitoring System Based on Wind Energy Harvesting DOI
Heng Tang,

Wandi Chen,

Zhigang Peng

et al.

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

Published: Jan. 13, 2025

Wind conditions are crucial in agricultural production, and wind vectors play a significant role planting plans. However, traditional anemometers rely on external power sources such as lithium batteries, while energy farmlands is usually neglected. This paper proposes an intelligent vector monitoring system based dual-module triboelectric nanogenerator (DM-TENG), which consists of fan-blade type soft-contact (FBTSC-TENG) disc-shaped (DS-TENG). FBTSC-TENG collects the environment to temperature humidity sensors, determining speed through frequency voltage pulses. DS-TENG can monitor direction, identifying 8 directions output pulse signals deep learning algorithms. Therefore, DM-TENG proposed this study expected field smart agriculture future.

Language: Английский

Citations

1
Highly sensitive and robust soft tri-axial tactile sensors enabled by dual inductive sensing mechanismss DOI Open Access
Si Chen, Li Su, Yiting Zheng

et al.

Soft Science, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 18, 2025

Tri-axial tactile sensors that provide real-time information on both normal and shear forces are enabling technologies for perception, which open up new possibilities in robotics, human-machine interfaces, environmental sensing, health monitoring. Among tri-axial based different mechanisms, inductive possess good robustness against contamination. Their low sensitivity to loads, however, is a critical barrier. This work presents the rational design of soft capable distinguishing static or dynamic with exceptional sensitivity. Dual mechanisms Biot-Savart law Eddy current effect explored overcome long-standing issue. In addition, hybrid coil non-uniform spacing designed generate uniform magnetic fields, addressing limitations traditional coils significantly improving sensor’s The picosecond pulsed laser scribing technique makes it possible pattern silver nanowires into high fidelity. A porous compressible layer adopted enable adjustable sensing range meet diverse application demands. Finally, sensor integrated between user’s leg orthosis, showcasing capability monitoring its objects.

Language: Английский

Citations

1
Bionic Recognition Technologies Inspired by Biological Mechanosensory Systems DOI Open Access
Xiangxiang Zhang, Chang-Guang Wang, Xin Pi

et al.

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

Published: Jan. 21, 2025

Abstract Mechanical information is a medium for perceptual interaction and health monitoring of organisms or intelligent mechanical equipment, including force, vibration, sound, flow. Researchers are increasingly deploying recognition technologies (MIRT) that integrate acquisition, pre‐processing, processing functions expected to enable advanced applications. However, this also poses significant challenges acquisition performance efficiency. The novel exciting mechanosensory systems in nature have inspired us develop superior bionic (MIBRT) based on materials, structures, devices address these challenges. Herein, first strategies pre‐processing presented their importance high‐performance highlighted. Subsequently, design considerations sensors by mechanoreceptors described. Then, the concepts neuromorphic summarized order replicate biological nervous system. Additionally, ability MIBRT investigated recognize basic information. Furthermore, further potential applications robots, healthcare, virtual reality explored with view solve range complex tasks. Finally, future opportunities identified from multiple perspectives.

Language: Английский

Citations

1
Multifunctional PVA/PNIPAM conductive hydrogel sensors enabled human-machine interaction intelligent rehabilitation training DOI
Yan-Long Zhao,

Xichong Zhang,

Yilin Hao

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 7(6)

Published: Nov. 18, 2024

Language: Английский

Citations

7
Ultrastretchable, Ultralow Hysteresis, High-Toughness Hydrogel Strain Sensor for Pressure Recognition with Deep Learning DOI
Wei‐Chen Huang, Xi Wang,

Fanchen Luo

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49834 - 49844

Published: Sept. 4, 2024

Hydrogel, as a promising material for wide range of applications, has demonstrated considerable potential use in flexible wearable devices and engineering technologies. However, simultaneously realizing the ultrastretchability, low hysteresis, high toughness hydrogels is still great challenge. Here, we present dual physically cross-linked polyacrylamide (PAM)/sodium hyaluronate (HA)/montmorillonite (MMT) hydrogel. The introduction HA increases degree chain entanglement, addition MMT acts stress dissipation center cross-linking agent, resulting hydrogel with hysteretic properties. This synthesized by simple strategy exhibited ultrahigh stretchability (3165%), breaking (228 kPa), (4.149 MJ/m

Language: Английский

Citations

6
Triboelectric‐Inertial Sensing Glove Enhanced by Charge‐Retained Strategy for Human‐Machine Interaction DOI Creative Commons

Bo Yang,

Jia Cheng, Xuecheng Qu

et al.

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

Published: Nov. 22, 2024

Abstract As technology advances, human‐machine interaction (HMI) demands more intuitive and natural methods. To meet this demand, smart gloves, capable of capturing intricate hand movements, are emerging as vital HMI tools. Moreover, triboelectric‐based sensors, with their self‐powered, cost‐effective, material various characteristics, can offer promising solutions for enhancing existing glove systems. However, a key limitation these sensors is that charge leakage in the measurement circuit results only transient signals, rather than continuous changes. address issue, charge‐retained effectively prevents triboelectric signal attenuation developed, enabling accurate finger movements. This innovation forms foundation highly integrated system, functionality by combining signals inertial sensor data. The system showcases diverse range applications, including complex robotic control, virtual reality interaction, home lighting adjustments, interface operations. Furthermore, leveraging artificial intelligence (AI) techniques, achieves recognition sign language an impressive 99.38% accuracy. work presents approach sensing offering valuable insights developing future multifunctional proposed its dual‐mode AI integration, holds great potential revolutionizing domains user experiences.

Language: Английский

Citations

5
Nerve‐Inspired Optical Waveguide Stretchable Sensor Fusing Wireless Transmission and AI Enabling Smart Tele‐Healthcare DOI Creative Commons
Tianliang Li,

Qian’ao Wang,

Zhanghua Cao

et al.

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

Published: Dec. 4, 2024

Abstract Flexible strain monitoring of hand and joint muscle movement is recognized as an effective method for the diagnosis rehabilitation neurological diseases such stroke Parkinson's disease. However, balancing high sensitivity large strain, improving wearing comfort, solving separation treatment are important challenges further building tele‐healthcare systems. Herein, a hydrogel‐based optical waveguide stretchable (HOWS) sensor proposed in this paper. A double network structure adopted to allow HOWS exhibit stretchability tensile up 600% 0.685 mV % −1 . Additionally, flexible smart bionic fabric embedding sensor, produced through warp weft knitting, significantly enhances comfort. small circuit board prepared enable wireless signal transmission designed thereby daily portability. speech recognition human‐machine interaction system, based on acquisition, constructed, convolutional neural algorithm integrated disease assessment. By integrating sensing, transmission, artificial intelligence (AI), system sensors demonstrated hold great potential early warning diseases.

Language: Английский

Citations

4
High‐Performance Bimodal Temperature/Pressure Tactile Sensor Based on Lamellar CNT/MXene/Cellulose Nanofibers Aerogel with Enhanced Multifunctionality DOI Open Access
Lin Tian,

Fu‐Lin Gao,

Yu‐Xiao Li

et al.

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

Published: Dec. 23, 2024

Abstract The rapid development of thermoelectric‐piezoresistive dual‐mode sensors has opened new avenues for enhancing the functionality, miniaturization, and integration flexible tactile sensors. However, existing research primarily focuses on decoupling temperature pressure responses, which leaves a significant gap in optimizing sensor performance exploring multifunctional applications. To address this limitation, composite aerogel with layered porous structure is developed, integrating carbon nanotubes MXene as conductive materials reinforced cellulose nanofibers. innovative design, characterized by ultra‐low thermal conductivity along superior electrical thermoelectric properties, allows resulting to monitor stimuli without interference through piezoresistive mechanisms. Demonstrated results reveal exceptional sensing capabilities, including minimum detectable variation 0.03 K detection limit 0.3 Pa. exhibits high sensitivities 33.5 µV −1 −45.2% kPa , stability across both stimuli. Furthermore, unique multi‐modal mechanism supports various applications, such energy harvesting, material recognition, complex information transmission, smart wearable devices, electronic skin, human‐computer interaction interfaces. This presents robust solution designing high‐performance dual‐modal significantly advances their practical applications multiple domains.

Language: Английский

Citations

4
Soft Pressure Sensor Array Inspired by Human Skin for Detecting 3D Robotic Movement DOI
Qiang Zhang, Chunyan Zhang, Haoyu Song

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(9), P. 14604 - 14614

Published: Feb. 19, 2025

3D soft pressure sensors play an important role in precise robotic operations. Multimodal that detect both static and dynamic allow robots to respond accurately real time. Here, we present a sensor array with size of 1.5 cm × composed capacitive piezoelectric units, inspired by Merkel cells Vater-Pacini corpuscles human skin. The tangential force from 0.1 2 N at angles 0°, 45°, 180°, 225° can be resolved analyzing the signals 16 sensors. 4 exhibit consistent stable performance when sensing normal forces 0.5 N. weight objects, as well direction grasping, effectively distinguish weight, size, grasping objects integrated on gripper. Running walking movements are recognized attached robot's knee.

Language: Английский

Citations

0
Self‐Powered Artificial Neuron Devices: Towards the All‐In‐One Perception and Computation System DOI Open Access
Tong Zheng,

Xinkai Xie,

Qiongfeng Shi

et al.

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

Published: Feb. 18, 2025

Abstract The increasing demand for energy supply in sensing units and the computational efficiency of computation has prompted researchers to explore novel, integrated technology that offers high low consumption. Self‐powered enables environmental perception without external sources, while neuromorphic provides energy‐efficient high‐performance computing capabilities. integration self‐powered presents a promising solution an all‐in‐one system. This review examines recent developments advancements artificial neuron devices based on triboelectric, piezoelectric, photoelectric effects, focusing their structures, mechanisms, functions. Furthermore, it compares electrical characteristics various types discusses effective methods enhancing performance. Additionally, this comprehensive summary systems, encompassing tactile, visual, auditory systems. Moreover, elucidates recently systems combine perception, computing, actuation into configurations, aspiring realize closed‐loop control. seamless holds significant potential shaping more intelligent future humanity.

Language: Английский

Citations

0