Monomer Trapping Synthesis Toward Dynamic Nanoconfinement Self‐healing Eutectogels for Strain Sensing

Advanced Science, Journal Year: 2024, Volume and Issue: 11(42)

Published: Sept. 16, 2024

Abstract The rapid advancement in attractive platforms such as biomedicine and human‐machine interaction has generated urgent demands for intelligent materials with high strength, flexibility, self‐healing capabilities. However, existing ability are challenged by a trade‐off between low elastic modulus, healing due to the inherent strength of noncovalent bonding. Here, drawing inspiration from human fibroblasts, monomer trapping synthesis strategy is presented based on dissociation reconfiguration amphiphilic ionic restrictors (7000‐times volume trapping) develop eutectogel. Benefiting nanoconfinement dynamic interfacial interactions, molecular chain backbone formed confined domains mechanically reinforced while preserving soft movement resulting eutectogels demonstrate superior mechanical properties (1799% 2753% higher tensile toughness than pure polymerized deep eutectic solvent), excellent efficiency (>90%), tangential modulus (0.367 MPa during working stage), sensitively monitor activities. This poised offer new perspective developing wearable electronics tailored body motion.

Language: Английский

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Liquid Metal Nanoparticle‐Based Multifunctional Printable Electronics Enabled by Polymerizable Deep Eutectic Solvents

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

Published: Jan. 10, 2025

Abstract Liquid metal nanoparticles (LMNPs) are being considered as promising candidates for printable electronics owing to their high conductivity and fluidity, well improved wettability comparable that of bulk LMs. However, the surface tension weak adhesion LMNPs pose formidable challenges facile patterning on various substrates diverse applications. Herein, a new LMNP‐polymer composite is reported multifunctional electronics, which achieved by introducing α ‐lipoic acid (LA)/choline chloride (ChCl) polymerizable deep eutectic solvents (PDESs) ideal polymer carriers. Simply with ring‐opening polymerization (ROP) LA, highly conductive LMNP‐PDES composites can be patterned using printing methods. Benefiting from hydrogen bondings within PDES, printed traces feature enhance consistent performances under different deformations. More importantly, they easily dissolved in ethanol via thermal treatment reprinted further use, showing excellent recyclable capability. Demonstrations stretchable sensor, conformal electrode, smart actuator validate versatility reliability this composite, ensuring its broad prospects electronics.

Language: Английский

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Damping Supramolecular Elastomer for Steady Hypothermic Sensing

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

Published: Feb. 24, 2025

Abstract Flexible temperature sensors often use gels to achieve skin‐inspired softness, but the water evaporation and freezing of hydrogel leakage ionogel, cause unstable signal transmission inaccurate measurement at sub‐zero temperatures. Here steady hypothermic sensing is achieved by designing a supramolecular elastomer containing two types segments: liquid‐free iontronic segment transmit electrical charges prevent ion leakage, neutral with pendant chains damp vibration for stable transmission. The exhibits excellent tensile properties, adhesiveness, self‐healing, ionic conductivity A wireless system fabricated based on supermolecule elastomer, realizing accurate, steady, sensitive real‐time detection. Especially, sensor coefficient resistance (TCR) 8.87% °C −1 from −20 −15 °C, three five times higher than that most flexible sensors. There no significant difference in detected this an infrared thermal imaging camera. Such represents step toward highly accurate cold chain transportation beyond.

Language: Английский

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A facile strategy to fabricate stretchable, low hysteresis and adhesive zwitterionic elastomers by concentration-induced polymerization for wound healing

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153804 - 153804

Published: July 6, 2024

Language: Английский

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High-performance poly(thioctic acid)-based thermosets featuring upcycling ability for in situ foaming enabled by dual-dynamic networks

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

Published: Sept. 1, 2024

Language: Английский

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Eutectogels: The Multifaceted Soft Ionic Materials of Tomorrow

JACS Au, Journal Year: 2024, Volume and Issue: 4(10), P. 3744 - 3758

Published: Oct. 3, 2024

Eutectogels, a rising category of soft materials, have recently garnered significant attention owing to their remarkable potential in various domains. This innovative class materials consists eutectic solvent immobilized three-dimensional network structure. The use eco-friendly and cost-effective solvents further emphasizes the appeal these multiple applications. Eutectogels exhibit key characteristics most solvents, including environmental friendliness, facile preparation, low vapor pressure, good ionic conductivity. Moreover, they can be tailored display functionalities such as self-healing capability, adhesiveness, antibacterial properties, which are facilitated by incorporating specific combinations mixture constituents. perspective article delves into current landscape challenges associated with eutectogels, particularly focusing on applications CO

Language: Английский

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Enhancement of Hybrid Organohydrogels by Interpenetrating Crosslinking Strategies for Multi-Source Signal Recognition over a Wide Temperature Range

Materials Horizons, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

With substantial temperature differentials between summer and winter in polar regions, there exists a pressing necessity for flexible sensors capable of functioning across broad spectrum to facilitate the construction more intelligent human-machine interface. Nevertheless, developing resilient extremely low temperatures remains significant challenge. In this study, we present an organohydrogel ranging from ambient -78 °C, enabling real-time monitoring multi-source signals, including motion, physiology, speech, pressure. We synthesize employing singular methodology: interpenetrating network structures as matrix frameworks, dynamic hydrophobic linkages physical cross-linking points, incorporating bionic binder. H-Bonding chain entanglement synergistic supramolecular interactions build with microphase-separated domains, which, together combination binary solvents inorganic salts, allows it exhibit excellent properties, large stretchability (≈1700%), high ionic conductivity (1.57 S m

Language: Английский

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Thioctic Acid-Based Solvent-Free and Recoverable Adhesive for Dry/Wet Environments

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Metal adhesive synthesis typically involves heating and solvents, the resultant adhesives lack degradability suffer from recycling sustainable problems. Herein, we developed a solvent-free chemically degradable biobased (p(Elp-TA)+PVP) thioctic acid (TA), its derivative (Elp), polyvinylpyrrolidone (PVP). Through rapid acid-triggered cationic ring-opening polymerization of dithiolane at ambient conditions, p(Elp-TA)+PVP could build up strong lap shear strength 1123 kPa in air an underwater 534 to copper plate. Molecular dynamics simulations show that compared p(Elp-TA), presence appropriate amount PVP can significantly enhance binding energy molecules metal substrate, adhesion substrates was achieved through synergistically dynamic adaptive network enhanced by hydrogen bonding, reversible coordination bonding 40 ps. More importantly, applied be easily degraded reverted small-molecular-weight lipoic species. Upon exposure dithiothreitol, green reducing agent, average molecular weight quickly decrease 1603 kDa 274 Da. This constructed simple method provides promising general strategy for developing controlled recoverable natural resources.

Language: Английский

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Cation‐π Interactions Based Conductive Hydrogels with Slide‐Ring Structure Toward Super Long‐Time in‐air/Underwater Linear Sensing and Communication

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

Published: Oct. 4, 2024

Abstract Conductive hydrogels (CHs) are attracted more attention in the flexible wearable sensors field, however, how to stably apply CHs underwater is still a big challenge. In order achieve usage of aquatic environments, integrated properties such as water retention ability, resistance swelling, toughness, adhesiveness, linear GF sensing, and long‐term necessary consider, but rarely reported previous reports. This paper proposes prepared using cationic aromatic monomers along with polyrotaxanes‐based crosslinkers. Due intermolecular cation‐π interactions topological slide‐ring‐based polyrotaxanes, exhibit good mechanical performance, adhesive nature, anti‐swelling properties. The presence architecture effectively mitigates stress concentration. Additionally, encapsulation PA allows maintain functionality even after 240 days direct placement at room temperature. Notably, designed sensitivity detecting land/underwater human motions, serve Morse code signal transmitters for information transmission. Thus, may have broad applications field.

Language: Английский

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Controllable structure, super adhesion, multifunctional, conductive pressure-sensitive adhesive for electronic skin: Enhancing cohesion by cellulose-derived covalent crosslinking

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 156561 - 156561

Published: Oct. 12, 2024

Language: Английский

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