Wearable All‐Fabric Hybrid Energy Harvester to Simultaneously Harvest Radiofrequency and Triboelectric Energy

Advanced Science, Journal Year: 2024, Volume and Issue: 11(17)

Published: Feb. 21, 2024

Distributed micro-energy harvesting devices offer the flexibility, sustainability, and multi-scenario applicability that will be critical to wearable electronic products in Internet of Things. The radiofrequency triboelectric (RF-TE) hybrid energy harvester (HEH) concept prototype is presented for first time, simultaneously capture from ambient electromagnetic waves biological motions. proposed system consists a rectenna, nanogenerator (TENG), power management circuit (PMC). Among them, all-fabric rectenna exhibits good impedance matching characteristics ISM frequency. flexible TENG unit can generate maximum density 0.024 µW cm

Language: Английский

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Lanthanide‐Coordinated Multifunctional Hydrogel for Detecting Human Motion and Encrypting Information

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

Published: Jan. 2, 2025

Abstract Smart hydrogels with multi‐fluorescent properties hold great promise for information encryption. However, conventional fluorescent often lack adequate mechanical and multiple responsiveness, limiting their range of applications. In this study, a multifunctional hydrogel featuring an interpenetrating polymer network (IPN) composed poly(vinyl alcohol) (PVA) poly(acrylic amide‐co‐2‐acrylamido‐2‐methylpropane sulfonic acid) P(AM/AMPS) chemical cross‐linking networks is designed. Through the coordination lanthanide ions (Eu 3+ , Tb ) glycine, achieves exceptional stretchability (over 900%) adjustable photoluminescence properties. Due to acid groups on 2‐acrylamide‐2‐methylpropanesulfonic (AMPS), which support various noncovalent interactions, PVA‐P(AM/AMPS)‐Gly‐Ln displays strong reversible adhesive diverse substrates. Ultimately, assembled into multifunctional, flexible sensor, boasting satisfactory sensitivity (GF = 5.3), rapid response rate (100 ms), outstanding characteristics, highlighting its potential applications in human motion detection

Language: Английский

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All-Textile Piezoelectric Nanogenerator Based on 3D Knitted Fabric Electrode for Wearable Applications

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(6), P. 2989 - 2998

Published: May 21, 2024

Flexible, air permeable and elastic self-powered sensors for human motion monitoring assisted medical rehabilitation have recently become a hot research topic. However, most current piezoelectric can not account many characteristics. Addressing this challenge, an all-textile sensor (ATPS) based on 3D structured knitted fabric electrodes is reported. The ATPS consists of element polyvinylidene fluoride nanofiber membrane, flexible electrodes, self-adhesive bandage. Based the efficient knitting technology, has advantages low cost, flexibility, simple structure, convenient large-area manufacturing. Experimental finite simulation results show that pattern enhance output ATPS. optimal high voltage response sensitivity up to 0.68 V/kPa. proposed responds wide range input forces from 0.098 724 N in mode, verifying its feasibility as tactile detection recognition (throat swallowing, wrist bending, elbow knee walking slowly, running fast) pressure (Morse code, digit recognition) demonstrating potential tracking, rehabilitation, human-computer interaction.

Language: Английский

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Bladeless Wind Turbine Triboelectric Nanogenerator for Effectively Harvesting Random Gust Energy

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

Published: June 6, 2024

Abstract In the environment, there is an abundance of gust energy which challenging to harvest with conventional rotating wind turbines, such as gusts generated by passing vehicles along roadsides. Addressing irregular and low‐frequency characteristics gusts, a bladeless turbine triboelectric nanogenerator (BWT‐TENG) enhanced aerodynamic performance proposed, enabling effective harvesting random energy. First, cylindrical bluff body shape designed, its principles under gust‐driven conditions are elucidated through computational fluid dynamics method. Subsequently, parameter optimization conducted for multilayered TENG. Systematic experiments demonstrated that BWT‐TENG achieved peak power density 4.08 W m −3 driven 10 s −1 , can even operate at frequencies low 0.1 Hz. Finally, showcased powering warning light in simulated rainfall environment from real roadside wireless gyroscopic sensors, thereby achieving self‐powered structural health monitoring roads or bridges. This work provides novel strategy utilizing TENGs environmental demonstrates vast potential field monitoring.

Language: Английский

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Advances and Classification of Autonomous Systems in Biomedical Devices: Integration of Energy Harvesting and Ultra-Low Power Consumption

Electronics, Journal Year: 2025, Volume and Issue: 14(1), P. 144 - 144

Published: Jan. 1, 2025

Autonomous electronic systems are becoming increasingly important in people’s lives, as a result of advances efficient energy storage systems, devices that can be permanently implanted humans, and the trend towards compact function an extension human body. In addition, strategies continue to found for integration harvesting constant manner. Covering numerous made biomedical quite overwhelming. This work presents review latest developed produce from body activity, collectors devices, create ultra-low-power wearable devices. The focuses on potential sufficiency required power or worn, while also providing information about patient’s condition. A comparison between energies produced by different instruments improvements development low-consumption is presented, with focus type medical new approach established classify locate most recent autonomous biomedicine based their complexity/function.

Language: Английский

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Self-powered and self-sensing triboelectric electromagnetic hybrid generator with dual motion amplification mechanism for application in floating slab track system

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110663 - 110663

Published: Jan. 1, 2025

Language: Английский

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All-in-one self-powered wearable biosensors systems

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 163, P. 100934 - 100934

Published: Feb. 8, 2025

Language: Английский

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Graphene‐Based Vitrimeric Ink with Self‐Healing Properties Enables Simple E‐Textile Triboelectric Coating Development

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

Published: Feb. 17, 2025

Abstract Advances in research electronic textiles (E‐textiles) that primarily cater to wearable sensing technology have found amalgamation with self‐powered technology, especially triboelectric nanogenerators (TENGs). However, developing E‐textiles properties involves a multi‐step process and complex device structure, which is unsuitable for actual wearables. Also, the cellulose‐based fabrics highest wearability are TENG fabrication, limiting usage synthetic fabrics. Apart from wearability, self‐healing behavior another significant property recently being looked upon sensors, providing long‐term functionality. Herein, simple yet effective approach proposed develop dielectrically optimized coatings cellulose fabric‐based sensors by leveraging elastomers tunable dielectric other properties, otherwise catering domain of skin separately. The record high output performance power density 4.69 W m −2 accomplished using single fabric layer thickness 0.56 mm supports elastomeric next‐generation strategic utilization dynamic covalent chemistry imparted coating. This report provides single‐step dip coating method self‐healable E‐textile.

Language: Английский

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Clothing comfort sensing system based on triboelectric and tribological behavior of fabrics

Nano Energy, Journal Year: 2024, Volume and Issue: 127, P. 109721 - 109721

Published: May 11, 2024

Language: Английский

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Highly breathable and sensitive iontronic wearable sensor based on porous ionic electrolyte and microstructure for human movement sensing

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153525 - 153525

Published: June 27, 2024

Language: Английский

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