Sea Cucumber‐Inspired Polyurethane Demonstrating Record‐Breaking Mechanical Properties in Room‐Temperature Self‐Healing Ionogels

Advanced Materials, Год журнала: 2024, Номер 36(44)

Опубликована: Сен. 12, 2024

Abstract Practical applications of existing self‐healing ionogels are often hindered by the trade‐off between their mechanical robustness, ionic conductivity, and temperature requirements for ability. Herein, this challenge is addressed drawing inspiration from sea cucumber. A polyurethane containing multiple hydrogen‐bond donors acceptors synthesized used to fabricate room‐temperature with excellent properties, high puncture resistance, impact resistance. The hard segments polyurethane, driven hydrogen bonds, coalesce into phase regions, which can efficiently dissipate energy through reversible disruption reformation bonds. Consequently, resulting exhibit record‐high tensile strength toughness compared other ionogels. Furthermore, inherent reversibility bonds within regions allows spontaneously self‐heal damaged properties conductivity times at room temperature. To underscore application potential, these employed as electrolytes in fabrication electrochromic devices, stable performance, repeatable healing ability, satisfactory This study presents a novel strategy exceptional capability.

Язык: Английский

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Stretchable ionogels: Recent advances in design, toughening mechanisms, material properties and wearable devices applications

Chemical Engineering Journal, Год журнала: 2024, Номер 490, С. 151850 - 151850

Опубликована: Май 1, 2024

Язык: Английский

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Deep Learning‐Assisted Electronic Skin System Capable of Capturing Spatiotemporal and Mechanical Features of Social Touch to Enhance Human–Robot Emotion Recognition

SmartMat, Год журнала: 2025, Номер 6(1)

Опубликована: Янв. 6, 2025

ABSTRACT In human interactions, social touch communication is widely used to convey emotions, emphasizing its critical role in advancing human–robot interactions by enabling robots understand and respond thereby significantly enhancing their service capabilities. However, the challenge dynamically capture with sufficient spatiotemporal mechanical resolution for deep haptic data analysis. This study presents a robotic system flexible electronic skin high‐frequency signal circuit, utilizing neural networks recognize emotions. The skin, made from double cross‐linked ionogels microstructured arrays, has low force detection threshold (8 Pa) wide perception range (0–150 kPa), of signals. By incorporating high‐speed readout circuit capable capturing features gesture information at 30 Hz, facilitates precise analysis interactions. A 3D convolutional network Squeeze‐and‐Excitation Attention module achieves 87.12% accuracy recognizing gestures, improving understanding emotions conveyed through touch. effectiveness validated interactive demonstrations dogs humanoid robots, demonstrating potential enhance emotional intelligence robots.

Язык: Английский

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Applications of Functional Polymeric Eutectogels

Macromolecular Rapid Communications, Год журнала: 2024, Номер 45(21)

Опубликована: Июль 15, 2024

Abstract Over the past two decades, deep eutectic solvents (DESs) have captured significant attention as an emergent class of that unique properties and applications in differing fields chemistry. One area where DES systems find utility is design polymeric gels, often referred to “eutectogels,” which can be prepared either using a replace traditional solvent, or monomers form part themselves. Due extensive network intramolecular interactions (e.g., hydrogen bonding) ionic species exist systems, eutectogels possess appealing material properties—high adhesive strength, tuneable viscosity, rapid polymerization kinetics, good conductivity, well high strength flexibility. In addition, non‐covalent crosslinking approaches are possible due inherent these materials. This review considers several key eutectogels, including organic electronics, wearable sensor technologies, 3D printing resins, adhesives, range various biomedical applications. The design, synthesis, discussed, addition advantages this synthetic approach comparison gel design. Perspectives on future directions field also highlighted.

Язык: Английский

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High‐Density, Crosstalk‐Free, Flexible Electrolyte‐Gated Synaptic Transistors Array via All‐Photolithography for Multimodal Neuromorphic Computing

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Abstract High‐density bio‐electrolyte‐gated synaptic transistors (BEGTs) array are promising for constructing neuromorphic computing architectures. Due to the bulk ion conductivity and crack sensitivity of electrolyte film, patterning is an indispensable route prevent spatial crosstalk improve flexibility device array. However, susceptibility bio‐electrolyte organic solvents poses challenges in developing reliable all‐photolithography techniques fabricating scalable, patterned, high‐density BEGTs This study introduces method that adopts a photo‐crosslinker‐enabled create (11846 devices per cm 2 ) multimodal demonstrates essential behaviors without inter‐device maintains its flexibility, enduring 200 bending cycles at 6 mm radius significant performance degradation. Meanwhile, exhibits behavior, not only successfully mimicking biological visual memory system sensing processing images but also proving highly accurate classifying handwritten digits, making it suitable systems. work offers dependable strategy scalable stable fabrication array, providing valuable insights advancing artificial

Язык: Английский

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THz Shielding Properties of Optically Transparent PEDOT:PSS/AgNW Composite Films and Their Sandwich Structures

Polymers, Год журнала: 2025, Номер 17(3), С. 321 - 321

Опубликована: Янв. 24, 2025

The modern pace of scientific and technological development dictates unprecedented requirements for the speed information transfer. THz range is considered one most promising has been actively developing in recent years. Along with need to develop transmitting devices, demand shielding materials this range, including transparent ones, also growing. In work, we present two types composite films based on silver nanowires PEDOT:PSS. We characterized these terms optoelectrical parameters, as well characteristics range. found that our have a sheet resistance (R□) about 8.6 ± 1.2 Ω/□ transparency 83.41 % efficiency 25.85 dB region, which makes them excellent candidates materials. made bilayer sandwich structure from films, showed 49.34 0.2–0.8 66.33%. addition, assessed possibility real application structures stability external conditions. Our sustain atmospheric corrosion maintain stable 30 days.

Язык: Английский

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Ionogel Adhesives: From Structural Design to Emerging Applications

Macromolecular Rapid Communications, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract Adhesives are indispensable in both daily household applications and advanced industrial settings, where they must deliver exceptional bonding performance. Ionogel adhesives, which feature a supporting polymer network infused with ionic liquid (IL), have emerged as promising candidates due to their unique structural functional properties. The presence of species within ionogels promotes non‐covalent interactions—such bonds, ion‐dipole interactions, hydrogen bonding—that enhance cohesion the material adhesion various substrates. These characteristics make ideal for that require robust adhesive performance, especially demanding environments. Despite growing interest ionogel comprehensive review latest advancements this area is lacking. This paper aims fill gap by categorizing adhesives based on composition discussing strategies Additionally, novel designed specific highlighted. Finally, current state research summarized, offers insights into challenges future opportunities development adhesives.

Язык: Английский

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Enhanced Electrochromic Smart Windows Based on Supramolecular Viologen Tweezers

Chemistry of Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Язык: Английский

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Enhancing the Electro‐Stimulation Performance of Polyvinyl Chloride Matrix With Nanofillers: A Comprehensive Review

Polymers for Advanced Technologies, Год журнала: 2025, Номер 36(4)

Опубликована: Апрель 1, 2025

ABSTRACT Electroactive polymers (EAPs) such as plasticized polyvinyl chloride (PVC) reinforced with nanofillers have emerged a promising approach for developing soft composite materials or gels stimuli‐responsive properties. This review explores the integration of highly electro‐stimuli nanofillers, including carbon nanotubes (CNTs), reduced graphene oxide (rGO), ionic liquids (ILs), and cellulose nanocrystals (CNCs), into PVC matrix. The strategic incorporation these significantly enhances mechanical properties gel composites while maintaining their flexibility lightweight nature. paper provides comprehensive discussion on roles in composites, impact physicochemical interactions, deformation mechanisms, actuator performance. Furthermore, it delves preparation techniques critical parameters that influence structural functional PVC‐based composites. findings highlight potential PVC‐nanofiller advanced applications, wearable artificial muscles, robotics, flexible actuators, adaptive lenses, biomedical devices. By synthesizing recent advancements this field, underscores transformative enabling next‐generation responsive systems.

Язык: Английский

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Eutectogels: Recent Advances and Emerging Biological Applications

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract Eutectogels, a family of emerging materials, integrate the characteristics deep eutectic solvents (DES) and gels, presenting unique application potential in biomedical engineering. However, latest progress eutectogels their applications field remain to be summarized refined. This review first introduces composition properties generated by interaction between DES gel matrix. Subsequently, classifications advantages are comprehensively discussed according cross‐linked preparation methods, including physical, chemical, multiple cross‐linked. By analyzing eutectogels, such as mechanical performance, thermal properties, conductivity, injectability, structure‐function relationships, is overviewed. Then, eutectogel's prospects engineering elaborated detail, drug delivery improve stability precise control release, enhancing curative effects reducing side effects. Also, functional utilization tissue engineering, biosensing, bioadhesives, related domains explored. Finally, existing challenges prospective research directions delineated.

Язык: Английский

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