High‐Conductivity, Self‐Healing, and Adhesive Ionic Hydrogels for Health Monitoring and Human‐Machine Interactions Under Extreme Cold Conditions

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Abstract Ionic conductive hydrogels (ICHs) are emerging as key materials for advanced human‐machine interactions and health monitoring systems due to their unique combination of flexibility, biocompatibility, electrical conductivity. However, a major challenge remains in developing ICHs that simultaneously exhibit high ionic conductivity, self‐healing, strong adhesion, particularly under extreme low‐temperature conditions. In this study, novel ICH composed sulfobetaine methacrylate, methacrylic acid, TEMPO‐oxidized cellulose nanofibers, sodium alginate, lithium chloride is presented. The hydrogel designed with hydrogen‐bonded chemically crosslinked network, achieving excellent conductivity (0.49 ± 0.05 S m −1 ), adhesion (36.73 2.28 kPa), self‐healing capacity even at −80 °C. Furthermore, the maintain functionality over 45 days, showcasing outstanding anti‐freezing properties. This material demonstrates significant potential non‐invasive, continuous monitoring, adhering conformally skin without signal crosstalk, enabling real‐time, high‐fidelity transmission cryogenic These offer transformative next generation multimodal sensors, broadening application possibilities harsh environments, including weather outer space.

Язык: Английский

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Highly stretchable, conductive, and self-adhesive starch-based hydrogel for high-performance flexible electronic devices

Carbohydrate Polymers, Год журнала: 2025, Номер 352, С. 123220 - 123220

Опубликована: Янв. 2, 2025

Язык: Английский

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Hybrid crosslinking cellulose nanofibers-reinforced zwitterionic poly (ionic liquid) organohydrogel with high-stretchable, anti-freezing, anti-drying as strain sensor application

Carbohydrate Polymers, Год журнала: 2025, Номер 353, С. 123253 - 123253

Опубликована: Янв. 12, 2025

Язык: Английский

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Performance investigation on strain sensors with wavy structures for direction perception

Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116194 - 116194

Опубликована: Янв. 1, 2025

Язык: Английский

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Self-healable and self-adhesive hydrogel based gas sensor using carbon quantum dots embedded ZnMn2O4 platelets for ppb level sensing of toluene at room temperature

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160601 - 160601

Опубликована: Фев. 1, 2025

Язык: Английский

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Fluorescent cellulose nanofibrils hydrogels for sensitive detection and efficient adsorption of Cu2+ and Cr6+

Carbohydrate Polymers, Год журнала: 2024, Номер 347, С. 122748 - 122748

Опубликована: Сен. 13, 2024

Язык: Английский

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Advances in polysaccharide-based conductive hydrogel for flexible electronics

Carbohydrate Polymers, Год журнала: 2024, Номер 348, С. 122836 - 122836

Опубликована: Окт. 10, 2024

Язык: Английский

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A Highly Sensitive, Conductive, and Flexible Hydrogel Sponge as a Discriminable Multimodal Sensor for Deep‐Learning‐Assisted Gesture Language Recognition

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

Abstract Flexible multimodal sensors have gained increasing popularity for applications in healthcare and extreme environment operations owing to their all‐around environmental perception data acquisition capabilities. However, fabricating a magnetism‐mechanics‐humidity sensor that possesses high sensitivity without signal overlapping while facile methodology remains great challenge. Herein, highly sensitive, conductive, flexible hydrogel sponge with discriminable magnetism, mechanics, humidity sensing capability is proposed, which shows stable pore size (19.30 µm) satisfactory mechanical properties based on the synergistic hydrogen bonding among sodium alginate, poly(vinyl alcohol) glycerol. The proposed can not only display favorable ability rapid response/recovery time (2.5/4 s) but also possess enhanced sensitivities (a gauge factor of 0.46 T −1 magnetic field, −1.16 kPa pressure), superior stability durability (over 8000 cycles). Benefiting from separated capacitive resistive response signals, precisely distinguish magnetic, mechanical, stimuli cross‐talk. Further, arrays assisted by deep learning algorithm are developed realize gesture language recognition accuracy 99.17%. It be believed this high‐performance will good prospects future soft electronics human‐machine interaction systems.

Язык: Английский

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A Reproducible and Self-Repairable Ionic Skin with Robust Performance Retention Enabled by Modulating the Noncovalent Interactions

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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Porous Carbon Nanoparticle Composite Paper Fiber with Laser-Induced Graphene Surface Microstructure for Pressure Sensing

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Янв. 24, 2025

In recent years, flexible pressure sensors have played an increasingly important role in human health monitoring. Inspired by traditional papermaking techniques, we developed a highly flexible, low-cost, and ecofriendly sensor using shredded paper fibers as the substrate. By combining properties of laser-induced graphene with structure fibers, improved internal pressure-sensitive designed conical surface microstructure, providing new insights into nanomaterial engineering. It features low resistance (424.44 Ω), energy consumption only 0.367 μW under 1.96 kPa, high sensitivity (1.68 kPa-1), wide monitoring range (98 Pa-111.720 kPa). The microstructure (MFTG) this study has total thickness comparable to A4 paper, is soft bendable, can be cut any shape like fit body, holds great potential for continuous activity status physiological information.

Язык: Английский

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