Ultra-Tough, highly stable and Self-Adhesive Goatskin-Based intelligent Multi-Functional organogel e-skin as Temperature, Humidity, Strain, and bioelectric four-mode sensors for health monitoring

Chemical Engineering Journal, Год журнала: 2024, Номер 485, С. 149816 - 149816

Опубликована: Фев. 19, 2024

Язык: Английский

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Coordination/salting-out synergistic construction of multifunctional PVA/chitosan conductive organohydrogel as strain and bioelectrical sensors

Polymer, Год журнала: 2024, Номер 298, С. 126889 - 126889

Опубликована: Март 9, 2024

Язык: Английский

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CQDs-Cross-Linked Conductive Collagen/PAA-Based Nanocomposite Organohydrogel Coupling Flexibility with Multifunctionality for Dual-Modal Sensing of Human Motions

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Апрель 27, 2024

Conductive hydrogels are ideal materials for intelligent medical devices, human-machine interfaces, and flexible bioelectrodes due to their adjustable mechanical properties electrical responsiveness, whereas it is still a great challenge achieve the integration of excellent flexibility biocompatibility into one hydrogel sensor while also incorporating self-healing, self-adhesion, environmental tolerance, antimicrobial properties. Here, nanocomposite conductive organohydrogel was constructed by using collagen (Col), alginate-derived carbon quantum dots (OSA-CQDs), poly(acrylic acid) (PAA), ethylene glycol reduced AgNPs, Fe3+ ions. Depending on OSA-CQDs with multiple chemical binding sites high specific surface area as cross-linkers, coupling highly biologically active Col chains PAA serving an energy dissipation module, resulting exhibited (795% strain, 193 kPa strength), cell compatibility (>95% survival rate), self-healing efficiency (HE = 79.5%), antifreezing (−20 °C), moisturizing (>120 h), repeatable adhesion (strength >20 kPa, times >10), inhibitory activity against Escherichia coli Staphylococcus aureus (9 21.5 cm2), conductivity, strain sensitivity (σ 1.34 S/m, gauge factor (GF) 11.63). Based all-in-one multifunction, can collaboratively adapt multimode sensing electrophysiological realize wireless real-time monitoring human activities physiological health. Therefore, this work provides new common platform design next-generation hydrogel-based smart wearable sensors.

Язык: Английский

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Advanced Flexible Sensing Technologies for Soft Robots

Advanced Functional Materials, Год журнала: 2024, Номер 34(29)

Опубликована: Апрель 15, 2024

Abstract Soft robots have recently attracted increasing interest due to their advantages in durability, flexibility, and deformability, which enable them adapt unstructured environments perform various complex tasks. Perception is crucial for soft robots. To better mimic biological systems, sensors need be integrated into robotic systems obtain both proprioceptive external perception effective usage. This review summarizes the latest advancements flexible sensing feedback technologies applications. It begins with an introduction development of robots, followed by in‐depth exploration smart materials advanced manufacturing methods. A detailed description modalities methodologies also included illustrate continuous breakthrough technology. In addition, applications based on these are concluded as well. The challenges promising solutions finally discussed analyzed provide a prospect future development. By examining recent advances intelligent technologies, this dedicated highlighting potential robotics motivating innovation within field.

Язык: Английский

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Using chitosan nanofibers to simultaneously improve the toughness and sensing performance of chitosan-based ionic conductive hydrogels

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 260, С. 129272 - 129272

Опубликована: Янв. 9, 2024

Язык: Английский

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Tough, conductive hydrogels based on gelatin and oxidized sodium carboxymethyl cellulose as flexible sensors

Carbohydrate Polymers, Год журнала: 2024, Номер 335, С. 121920 - 121920

Опубликована: Фев. 9, 2024

Язык: Английский

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Poly(vinyl alcohol)/polyacrylamide double‐network ionic conductive hydrogel strain sensor with high sensitivity and high elongation at break

Journal of Polymer Science, Год журнала: 2024, Номер 62(20), С. 4599 - 4611

Опубликована: Июль 19, 2024

Abstract As a soft material with biocompatibility and stimulation response, ionic conductive hydrogel‐based wearable strain sensors show great potential across wide spectrum of engineering disciplines, but their mechanical toughness is limited in practical applications. In this study, freeze‐thawing techniques were utilized to fabricate double‐network hydrogels poly(vinyl alcohol)/polyacrylamide (PVA/PAM) both covalent physical cross‐linking networks. These demonstrate excellent performance, an elongation at break 2253% tensile strength 268.2 kPa. Simultaneously, they also display high sensitivity (Gage factor, GF = 2.32 0%–200% strain), achieve rapid response time 368 ms without the addition extra fillers or ions, stable signal transmission even after multiple cycles, fast human motion detection.

Язык: Английский

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Cellulose nanocrystals boosted hydrophobically associated self-healable conductive hydrogels for the application of strain sensors and electronic devices

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 260, С. 129376 - 129376

Опубликована: Янв. 22, 2024

Язык: Английский

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A polypyrrole-dopamine/poly(vinyl alcohol) anisotropic hydrogel for strain sensor and bioelectrodes

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150182 - 150182

Опубликована: Март 4, 2024

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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