Flexible electronic brush: Real-time multimodal sensing powered by reservoir computing through whisker dynamics

Science Advances, Год журнала: 2025, Номер 11(5)

Опубликована: Янв. 29, 2025

Multimodal sensing using soft body dynamics plays a crucial role in controlling robotic motions. An intriguing application of such robot control is to mimic whiskers and digitize motion through whisker dynamics. The challenge herein simultaneously monitor the directions, speed, force, slip information motion. existing whisker-like sensors cannot detect effectively. To address this challenge, study develops multitasking electronic brush (e-brush) composed bundle powered by reservoir computing (RC). Four pressure are integrated into its motion, slip, target surface. These can provide long-term, low-pressure detection as low 50 pascals, allowing for precise monitoring movements. A RC algorithm developed extract multiple parameters, including slip. As proof concept e-brush, trajectory handwriting successfully detected.

Язык: Английский

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Laser-Induced Nanowire Percolation Interlocking for Ultrarobust Soft Electronics

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Янв. 31, 2025

Metallic nanowires have served as novel materials for soft electronics due to their outstanding mechanical compliance and electrical properties. However, weak adhesion low robustness of nanowire networks substrates significantly undermine reliability, necessitating the use an insulating protective layer, which greatly limits utility. Herein, we present a versatile generalized laser-based process that simultaneously achieves strong on diverse without need layer. In this method, laser-induced photothermal energy at interface between network substrate facilitates interpenetration polymer matrix, resulting in interlocking through percolation. This mechanism is broadly applicable across different metallic thermoplastic substrates, enhancing its universality applications. Thereby, demonstrated reusable wearable physiological sensors skin compromising performance sensor. Furthermore, enhanced conductivity by enables stable functionalization conducting polymers wet environment, broadening application into various electrochemical devices.

Язык: Английский

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Trends in Flexible Sensing Technology in Smart Wearable Mechanisms–Materials–Applications

Nanomaterials, Год журнала: 2025, Номер 15(4), С. 298 - 298

Опубликована: Фев. 15, 2025

Flexible sensors are revolutionizing our lives as a key component of intelligent wearables. Their pliability, stretchability, and diverse designs enable foldable portable devices while enhancing comfort convenience. Advances in materials science have provided numerous options for creating flexible sensors. The core their application areas like electronic skin, health medical monitoring, motion human-computer interaction is selecting that optimize sensor performance weight, elasticity, comfort, flexibility. This article focuses on sensors, analyzing "sensing mechanisms-materials-applications" framework. It explores development trajectory, material characteristics, contributions various domains such interaction. concludes by summarizing current research achievements discussing future challenges opportunities. expected to continue expanding into new fields, driving the evolution smart wearables contributing society.

Язык: Английский

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Temperature-Sensitive Polymer Composite-Enabled All-Printed Flexible Temperature Sensors for Safety Monitoring

Composites Part B Engineering, Год журнала: 2025, Номер unknown, С. 112474 - 112474

Опубликована: Апрель 1, 2025

Язык: Английский

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Magnetic micro-protrusion arrays with wrinkled polypyrrole surfaces for enhancing the performance of flexible pressure sensors

APL Materials, Год журнала: 2025, Номер 13(1)

Опубликована: Янв. 1, 2025

Flexible sensing technology has been developed and improved rapidly in recent years, attracting widespread attention research. Magnetic composites have great potential the field of flexible due to their excellent conductivity magnetic controllability. Here, a performance enhanced double-layer piezocapacitive sensor, PPy-SMPA, was proposed. The sensor consists substrate with surface micro-protrusion arrays formed by materials wrinkled PPy sensitive layer polymerized chemical deposition. internal micro-capacitance model at different pressures constructed, effects distribution degree particles aspect ratio on equivalent capacitance were discussed. exhibited cyclic stability, dynamic characteristics, mechanical durability, sensitivity reaching five times that planar low pressure range. On this basis, grip strength tests performed accelerate practical development, these sensors integrated into smart insoles for fall detection early warning, demonstrating applications wearable devices, homes, human health monitoring.

Язык: Английский

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Effect of NiO Nanofiller on P(VdC‐Co‐AN) With PEG Polymer Blend Electrolyte for Energy Storage Applications

Journal of Polymer Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

ABSTRACT Solid‐state polymer electrolytes with safety and high energy density are promising novel options for storage devices. Nevertheless, the low ionic conductivity limited mobility of lithium ions at room temperature have significantly impeded their practical application. A flexible composite electrolyte was fabricated using a solution casting method. This consisted blend poly (vinylidene chloride‐co‐acrylonitrile) (PVdC‐co‐AN) polyethylene glycol (PEG), incorporated perchlorate (LiClO 4 ) as salt, propylene carbonate (PC) plasticizer, nickel oxide (NiO) nanoparticles filler. The is prepared by various concentrations NiO (Nps) (0, 5, 10, 15, 20 wt.%). confirmed XRD analysis, incorporation in also determined. salt plasticizer filler interactions FTIR analysis. At temperature, sample containing 15% has value up to 10 −3 S cm −1 . electrochemical thermal stability this achieved 4.8 V 312°C. mechanical enhanced 29 MPa. remarkable performance enhancement attributed NiO, which facilitated improved conductivity, properties, compatibility applications.

Язык: Английский

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Water‐Dynamics Monitoring Using a Flexible Resistive Sensor and Reservoir Computing

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Abstract Water droplets exhibit different dynamics upon contact with an object, depending on several factors, including the impact angle and droplet volume. Insights gained from monitoring might be valuable in rain‐sensing applications for analyzing precipitation wind velocity. Notably, a resistive‐type flexible rain sensor exists, which monitors changes resistance time when water contacts object. However, sensing mechanism contacting conductive superhydrophobic surface has not been systematically explored, importantly, sensors can only used at 20° tilt angle. Therefore, this study aims to reveal of resistive by vertical energy impacting surface. By varying conditions surrounding impact, we observe that minimum increases decreases dropping heights angles. Further, reservoir‐computing algorithm is developed assess angles, resulting successful estimation water‐droplet volume

Язык: Английский

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Simultaneous Measurement of Surface Tension and Viscosity Using a Liquid Dynamics Sensor

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Abstract The dynamics of liquids upon impact with an object exhibit distinctive behaviors influenced by physical parameters such as surface tension and viscosity, which can be determined analyzing a liquid's dynamic response. However, measuring these typically requires different tools, complicated setup, increased space, higher costs. To streamline this process, liquid sensor capable simultaneously extracting viscosity via single‐step measurement is proposed. proposed method uses superhydrophobic comprising three electrode pairs, are fabricated using laser‐induced graphene on polydimethylsiloxane. monitors time‐series resistance changes triggered dynamics. results show that the vary allowing for differentiation properties. By implementing echo state network algorithm, successfully estimated simultaneously. In addition, system demonstrates reliable generalization capability, accurately estimating properties unknown liquids, confirms sensor's robustness simultaneous parameters.

Язык: Английский

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Bioinspired Sensor and Actuator Hybrid Pixel Array for Moisture/Temperature Mapping, Electrothermal Display and Programmable Deformation

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Natural soft organisms with sophisticated perception and deformation abilities provide inspiration for developing flexible electronics. However, the development of sensing actuating hybrid systems remains a challenge. Herein, we report bioinspired sensor actuator pixel array (SA-HPA) that enables moisture/temperature mapping, electrothermal display, programmable deformation. The SA-HPA is fabricated by femtosecond laser patterning Cu electrodes/circuits, controllable deposition graphene, selective encapsulation, liquid crystal elastomer integration. versatile can work as temperature moisture recognition, interference between them be overcome encapsulation adjacent pixels. Additionally, SA-HPAs also serve pixels infrared display actuation. As proof-of-concept, robotic system active humidity was demonstrated. We deem may new paradigm

Язык: Английский

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Closing the loop: Autonomous intelligent control for hypoxia pre-acclimatization and high-altitude health management

National Science Review, Год журнала: 2025, Номер 12(5)

Опубликована: Март 7, 2025

Hypobaric hypoxia at high altitudes threatens the health of high-altitude residents. The development effective methods to guarantee safety frequent human activities in locations is therefore needed. Pre-acclimatization sea level an approach mitigate subsequent altitude sickness for rapid ascent, which offers a viable substitute on-site acclimatization, minimizes associated risks that are linked prolonged exposure environments and can be personalized individual hypoxic responses. Another critical aspect prevent long-term physical damage management altitudes, enabled by emerging technologies wearable sensors, Internet Medical Things artificial intelligence. In this review, we outline progress pre-acclimatization management, as well understanding physiological mechanisms under hypoxia, highlighting important role played sensors closed-loop control systems developing intelligent solutions. We also discuss challenges prospects deploying autonomous monitoring management.

Язык: Английский

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