Conductive hydrogels for bioenergy harvesting and self-powered application

Progress in Materials Science, Journal Year: 2023, Volume and Issue: 138, P. 101156 - 101156

Published: June 23, 2023

Language: Английский

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Anti-bacterial, anti-freezing starch/ionic liquid/PVA ion-conductive hydrogel with high performance for multi-stimulation sensitive responsive sensors

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 477, P. 147065 - 147065

Published: Nov. 10, 2023

Language: Английский

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An Environment-Tolerant Ion-Conducting Double-Network Composite Hydrogel for High-Performance Flexible Electronic Devices

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 29, 2024

Abstract High-performance ion-conducting hydrogels (ICHs) are vital for developing flexible electronic devices. However, the robustness and behavior of ICHs deteriorate at extreme temperatures, hampering their use in soft electronics. To resolve these issues, a method involving freeze–thawing ionizing radiation technology is reported herein synthesizing novel double-network (DN) ICH based on poly(ionic liquid)/MXene/poly(vinyl alcohol) (PMP DN ICH) system. The well-designed exhibits outstanding ionic conductivity (63.89 mS cm −1 25 °C), excellent temperature resistance (− 60–80 prolonged stability (30 d ambient temperature), high oxidation resistance, remarkable antibacterial activity, decent mechanical performance, adhesion. Additionally, performs effectively wireless strain sensor, thermal all-solid-state supercapacitor, single-electrode triboelectric nanogenerator, thereby highlighting its viability constructing highly integrated gel structure endows devices with stable, reliable signal output performance. In particular, supercapacitor containing PMP electrolyte areal specific capacitance 253.38 mF −2 (current density, 1 mA ) environmental adaptability. This study paves way design fabrication high-performance multifunctional/flexible wearable sensing, energy-storage, energy-harvesting applications.

Language: Английский

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Strain-induced crystallization and phase separation used for fabricating a tough and stiff slide-ring solid polymer electrolyte

Science Advances, Journal Year: 2023, Volume and Issue: 9(47)

Published: Nov. 24, 2023

The demand for mechanically robust polymer-based electrolytes is increasing applications to wearable devices. Young’s modulus and breaking energy are essential parameters describing the mechanical reliability of electrolytes. former plays a vital role in suppressing short circuit during charge-discharge, while latter indicates crack propagation resistance. However, polymer with high moduli generally brittle. In this study, tough slide-ring solid electrolyte (SR-SPE) through trade-off between stiffness toughness designed on basis strain-induced crystallization (SIC) phase separation. SIC makes material highly (breaking energy, 80 100 megajoules per cubic meter). Phase separation enhanced (Young’s modulus, 10 70 megapascals). combined effect made SR-SPE stiff, these mechanisms do not impair ionic conductivity. This strategy could be other toughening design gel materials.

Language: Английский

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Functional conductive hydrogels: from performance to flexible sensor applications

Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(15), P. 2925 - 2957

Published: Jan. 1, 2023

Conductive hydrogels combine the softness of and conductivity conductive media, functionalized with practical application functions will become ideal materials for fabricating flexible sensors.

Language: Английский

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Synergistic strengthening of PVA ionic conductive hydrogels using aramid nanofibers and tannic acid for mechanically robust, antifreezing, water-retaining and antibacterial flexible sensors

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 654, P. 1260 - 1271

Published: Oct. 26, 2023

Language: Английский

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Silk fibroin hydrogel adhesive enables sealed-tight reconstruction of meniscus tears

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 26, 2024

Abstract Despite orientationally variant tears of the meniscus, suture repair is current clinical gold treatment. However, inaccessible in company with re-tears susceptibility remain unresolved. To extend meniscal tools from perspective adhesion and regeneration, we design a dual functional biologic-released bioadhesive (S-PIL10) comprised methacrylated silk fibroin crosslinked phenylboronic acid-ionic liquid loading growth factor TGF-β1, which integrates chemo-mechanical restoration inner regeneration. Supramolecular interactions β-sheets hydrogen bonds richened by (PIL) result enhanced wet adhesion, swelling resistance, anti-fatigue capabilities, compared to neat gel. Besides, elimination reactive oxygen species (ROS) S-PIL10 further fortifies localized meniscus tear affecting inflammatory microenvironment dynamic borate ester bonds, continuously releases TGF-β1 for cell recruitment bridging defect edge. In vivo rabbit models functionally evidence seamless dense reconstruction torn verifying that concept adhesive feasible providing promising revolutionary strategy preclinical research tears.

Language: Английский

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Biomimetic Spun Silk Ionotronic Fibers for Intelligent Discrimination of Motions and Tactile Stimuli

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(36)

Published: April 1, 2023

Abstract Innovation in the ionotronics field has significantly accelerated development of ultraflexible devices and machines. However, it is still challenging to develop efficient ionotronic‐based fibers with necessary stretchability, resilience, conductivity due inherent conflict producing spinning dopes both high polymer ion concentrations low viscosities. Inspired by liquid crystalline animal silk, this study circumvents tradeoff other methods dry a nematic silk microfibril dope solution. The texture allows flow through spinneret form free‐standing under minimal external forces. resultant silk‐sourced ionotronic (SSIFs) are highly stretchable, tough, resilient, fatigue‐resistant. These mechanical advantages ensure rapid recoverable electromechanical response SSIFs kinematic deformations. Further, incorporation into core–shell triboelectric nanogenerator provides outstanding stable sensitive precisely sensitively perceive small pressures. Moreover, implementing combination machine learning Internet Things techniques, can sort objects made different materials. With these structural, processing, performance, functional merits, prepared herein expected be applied human–machine interfaces.

Language: Английский

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Starch/polyvinyl alcohol with ionic liquid/graphene oxide enabled highly tough, conductive and freezing-resistance hydrogels for multimodal wearable sensors

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 320, P. 121262 - 121262

Published: Aug. 6, 2023

Language: Английский

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Highly stretchable, environmentally stable, self-healing and adhesive conductive nanocomposite organohydrogel for efficient multimodal sensing

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 480, P. 148305 - 148305

Published: Dec. 25, 2023

Language: Английский

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