Cellulose‐Based Dual‐Network Conductive Hydrogel with Exceptional Adhesion

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: July 25, 2024

Abstract Cellulose consists of a natural, rigid polymer that is widely used to improve the mechanical and water‐holding properties hydrogels. However, its abundant hydroxyl groups make it highly absorbent free water, leading swelling behavior. This increased water content will also decrease adhesive performance. In this study, cellulose successfully hydrophobically modified reduce absorption water. Gelatin then cross‐linked with through Schiff‐base reaction, resulting in bound content. significantly enhances resistance permeability, improves freeze–thaw stability hydrogel. Due internal hydrophobicity, molecules can quickly penetrate into interior, reducing their residence time on hydrogel surface. allows maintain high adhesion natural environments, achieving an strength up 3.0 MPa wood bamboo‐based materials. The retain even after prolonged exposure humid environment. Additionally, Na + ions enhance electrical conductivity sensitivity (gauge factor (GF) = 1.51), demonstrating potential applications flexible sensing.

Language: Английский

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A novel superhydrophobic cotton fabric constructed by rosin-based polymer and nano-hydroxyapatite for oil/water separation

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 349, P. 127847 - 127847

Published: May 8, 2024

Language: Английский

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Sweat-adaptive adhesive hydrogel electronics enabled by dynamic hydrogen bond networks

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152290 - 152290

Published: May 16, 2024

Language: Английский

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Ultra-Thin Amphiphilic Hydrogel Electrolyte for Flexible Zinc-ion Paper Batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(18), P. 6507 - 6520

Published: Jan. 1, 2024

The paper-like ZIBs can be folded and unfolded using the Miura folding technique, enhancing areal energy density by a factor of 18.

Language: Английский

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From Fundamentals to Practice: Electrolyte Strategies for Zinc‐Ion Batteries in Extreme Temperature

Carbon Neutralization, Journal Year: 2024, Volume and Issue: 4(1)

Published: Nov. 24, 2024

ABSTRACT In the pursuit of advanced energy storage technologies that promote sustainable solutions, zinc‐ion batteries (ZIBs) have emerged as a promising alternative to lithium‐ion due their abundance, safety, and environmental advantages. However, failure mechanisms ZIBs under extreme temperatures are still not fully understood, presenting significant challenges development commercialization. Therefore, innovative strategies essential enhance adaptability temperature extremes. this review, we first explore thermodynamic kinetic aspects performance degradation temperatures, focusing on key factors such ion diffusion redox processes at electrode interfaces. We then comprehensively summarize discuss existing approaches for various electrolyte types, including aqueous, nonaqueous, solid state. Finally, highlight future prospects operating conditions. The insights presented in review expected accelerate advancement facilitate practical implementation large‐scale systems.

Language: Английский

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Functionalities and properties of conductive hydrogel with nanocellulose integration

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159872 - 159872

Published: Jan. 1, 2025

Language: Английский

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Recent advancements and perspectives in conductive hydrogel-based flexible all-in-one supercapacitors

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 641, P. 236902 - 236902

Published: April 2, 2025

Language: Английский

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Dynamic Proteinaceous Hydrogel Enables In‐Situ Recruitment of Endogenous TGF‐β1 and Stem Cells for Cartilage Regeneration

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

Published: March 19, 2024

Abstract Articular cartilage is a tissue with relatively poor self‐regeneration capacity due to insufficient blood vessels and chondrocytes in the region. Biomaterial‐assisted engineering has shown great potential regeneration. However, there are still many worries over uses of exogenous growth factors, stem cells scaffolds. To address these concerns, here dynamic proteinaceous hydrogel self‐recruiting ability cartilage‐inducing factor for situ regeneration reported. The (Pep‐GelSH) prepared by using thiol‐modified gelatin thiol‐capped TGF‐β1‐affinity peptide through Au‐S coordination. injectability self‐recovery Pep‐GelSH enabled not only minimally invasive implantation but also adaptability scaffold irregular defect shapes. Meanwhile, showed improved adherence host allowed quick infiltration cells. More importantly, significantly enhanced local enrichment endogenous TGF‐β1 led recruitment vivo. After implantation, triggered innate repair defects successively promoting recruitment, differentiation, resulting chondrogenesis repair. Therefore, study this work may provide feasible promising approach

Language: Английский

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Humidity‐adaptive, mechanically robust, and recyclable bioplastic films amplified by nanoconfined assembly

Aggregate, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Abstract Poly(vinyl alcohol) (PVA) is biodegradable, recyclable, and has high tensile strength. Therefore, it ideal for the development of environment‐friendly sustainable bioplastics. However, at elevated humidity, mechanical properties PVA bioplastic films undergo degradation owing to their intrinsic hydrophilic hygroscopic nature, hindering applications. This study proposes a nanoconfined assembly strategy produce humidity‐adaptive, mechanically robust, recyclable film. The strong hydrogen bonds between cellulose nanofibrils inhibit penetration water molecules into film promote humidity resistance. Further, robust coordination interactions bentonite nanoplates, PVA, restrict slip polymer chains during deformation, leading enhanced properties. Benefiting from architecture in aggregated composites, resulting reinforced simultaneously exhibits strength, stiffness, toughness, fracture energy, tearing energy 55.9 MPa, 1,275.6 162.9 MJ m −3 , 630.9 kJ −2 465.0 respectively. Moreover, maintains strength approximately 48.7 MPa even 80% relative 180 days. efficient design applies diverse scales structured biomacromolecules. facilitates application high‐performance settings that require tolerance.

Language: Английский

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Cellulose nanofibril-guided orienting response of supramolecular network enables superstretchable, robust, and antifatigue hydrogel

The Innovation Materials, Journal Year: 2024, Volume and Issue: 2(4), P. 100092 - 100092

Published: Jan. 1, 2024

<p>Hydrogels featuring randomly networked matrix typically show poor mechanical strength owing to the weak interchain interactions of matrix. Encouragingly, stretchability and toughness hydrogel materials along a certain direction were recently improved an unprecedented level with design structured oriented matrix, realization excellent concurrently isotropic performance for hydrogels now become next- research goal. Herein, self-assembling process poly(vinyl alcohol) (PVA) macromolecular chain cellulose nanofibril (CNF) induced by salting-out effect was reported, which allowed formation strongly hydrogen-bonded PVA-CNF supramolecular The resulting hydrogel, in any direction, can ultra-high 7,400% true tensile 420 MPa through orientation robustness interaction between PVA CNF experimentally demonstrated fact that showed high fracture energy (reaching up 95.7 kJ m⁻²) low notch sensitivity (fatigue threshold 3,203 J m⁻²), even outperforming most state-of-the-art anisotropic hydrogels. These results highlight constructing among various components gel holds great promise future extraordinary performance.</p>

Language: Английский

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