Polymer, Год журнала: 2024, Номер 317, С. 127937 - 127937
Опубликована: Дек. 9, 2024
Язык: Английский
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 8, 2025
Abstract Hydrogels have received great attention due to their molecular designability and wide application range. However, they are prone freeze at low temperatures the existence of mass water molecules, which can damage flexibility transparency, greatly limiting use in cold environments. Although adding cryoprotectants reduce freezing point hydrogels, it may also deteriorate mechanical properties face risk cryoprotectant leakage. Herein, microphase‐separated structures hydrogels regulated confine molecules sub‐6 nm nanochannels increase proportion bound water, endowing with intrinsic anti‐freezing properties, high strength, good stretchability, remarkable fracture energy, puncture resistance. Even after being kept liquid nitrogen for 1000 h, hydrogel still maintains transparency. The exhibit excellent low‐temperature shape memory intelligent optical waveguide properties. Additionally, be assembled into strain pressure sensors flexible sensing both room temperatures. intrinsically offers broad prospects electronic applications.
Язык: Английский
Процитировано
8
Advanced Functional Materials, Год журнала: 2024, Номер 34(38)
Опубликована: Май 14, 2024
Abstract Ion‐conductive elastomers have emerged as ideal candidates for ionic skin and wearable devices due to their intrinsic stretchability excellent electrical properties. Despite continuous efforts in this field, strain‐stiffening, robust yet compliant are still unattainable the limited intermolecular interactions, restricting reliability durability practical applications. Inspired by interwoven collagen fiber network synergistic non‐covalent interaction dermis, an immense ultra‐stretchable, highly tough, elastic elastomer reported introducing metal–oxygen interactions into entangled network. The also show intriguing self‐healing ability, high adhesion, environmental tolerance, contributed dynamic noncovalent interactions. prepared displays sensitive stable responses temperature strain. This work demonstrates a new design strategy fabricating high‐performance with mechanical properties, showing great prospects flexible devices.
Язык: Английский
Процитировано
13
Advanced Materials, Год журнала: 2024, Номер 36(45)
Опубликована: Сен. 18, 2024
Abstract Ionogels have garnered significant interest due to their great potential in flexible iontronic devices. However, limited mechanical tunability and environmental intolerance posed challenges for integration into next‐generation electronics different scenarios. Herein, the synergistic effect of cation‐oxygen coordination interaction hydrogen bonding is leveraged construct a 3D supramolecular network, resulting ionogels with tunable modulus, stretchability, strength, achieving an unprecedented elongation at break 10 800%. Moreover, network endows extremely high fracture energy, crack insensitivity, elasticity. Meanwhile, stability hydrophobic further shield them from unfavorable effects temperature variations water molecules, enabling operate within broad range exhibit robust underwater adhesion. Then, ionogel assembled wearable sensor, demonstrating its sensing (temperature, pressure, strain) signal transmission. This work can inspire applications multifunctional fields.
Язык: Английский
Процитировано
12
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(2), С. 4165 - 4175
Опубликована: Янв. 7, 2025
Silver nanowire (Ag NW)-based elastic conductors have been considered a promising candidate for key stretchable electrodes in wearable devices. However, the weak interface interaction of Ag NWs and substrates leads to poor durability electronic For everyday usage, an additional self-healing ability is required resist scratching damage. Therefore, robust NW-based possessing stretchability, self-healing, stability are highly desirable challenging. Here, we present universal tailoring strategy that introduces thiols onto dynamically cross-linked substrate surface. The surface thiol groups strongly interact with through Ag–S bonds, forming stable conductive layer on substrate. At elevated temperatures, partially embedded buffer formed release concentrated stress. As result, conductor displays combination good conductivity, high stretchability (>1000%), efficient capability (>95%), remarkable stability. Besides, combining properties mentioned above suitable fabricating sensitive durable strain sensor against cyclic strain. presented can be versatile effective route generating other thiol-rich covalently elastomers dynamic disulfide bonds.
Язык: Английский
Процитировано
1
Chemical Engineering Journal, Год журнала: 2024, Номер 493, С. 152887 - 152887
Опубликована: Июнь 5, 2024
Язык: Английский
Процитировано
9
Advanced Functional Materials, Год журнала: 2024, Номер 34(46)
Опубликована: Июль 18, 2024
Abstract Ion‐conductive elastomers capable of damping can significantly mitigate the interference caused by mechanical noise during data acquisition in wearable and biomedical devices. However, currently available often lack robust properties have a narrow temperature range for effective damping. Here, precise modulation weak to strong ion‐dipole interactions plays crucial role bolstering network stability tuning relaxation behavior supramolecular ion‐conductive (SICEs). The SICEs exhibit impressive properties, including modulus 13.2 MPa, toughness 65.6 MJ m −3 , fracture energy 74.9 kJ −2 . Additionally, they demonstrate remarkable capabilities, with capacity 91.2% peak tan δ 1.11. Furthermore, entropy‐driven rearrangement ensures SICE remain stable even at elevated temperatures (18–200 °C, > 0.3), making it most thermally resistant elastomer reported date. Moreover, proves filtering out various noises physiological signal detection strain sensing, highlighting its vast potential flexible electronics.
Язык: Английский
Процитировано
8
Biomimetics, Год журнала: 2024, Номер 9(9), С. 545 - 545
Опубликована: Сен. 9, 2024
Biological structures optimized through natural selection provide valuable insights for engineering load-bearing components. This paper reviews six key strategies evolved in nature efficient mechanical load handling: hierarchically structured composites, cellular structures, functional gradients, hard shell–soft core architectures, form follows function, and robust geometric shapes. The also discusses recent research that applies these to design, demonstrating their effectiveness advancing technical solutions. challenges of translating nature’s designs into applications are addressed, with a focus on how advancements computational methods, particularly artificial intelligence, accelerating this process. need further development innovative material characterization techniques, modeling approaches heterogeneous media, multi-criteria structural optimization advanced manufacturing techniques capable achieving enhanced control across multiple scales is underscored. By highlighting holistic approach designing components, advocates adopting similarly comprehensive methodology practices shape the next generation
Язык: Английский
Процитировано
6
International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141354 - 141354
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Nano Energy, Год журнала: 2025, Номер unknown, С. 110878 - 110878
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 20, 2025
Abstract Inspired by the sensory functions of human skin, development electronic skins (e‐skins) has garnered significant attention. Ionogels, as an emerging class soft materials, show promise in serving e‐skins. The pursuit a sustainable society motivates recyclable ionogels, typically achieved introducing dynamic non‐covalent bonds. However, these current state‐of‐the‐art methods often result poor elasticity or strain softening, which significantly limits their suitability for e‐skin applications. This study introduces multifunctional and based on hierarchical double‐network ionogel that integrates covalent bonds interactions. seamlessly key including strain‐stiffening capability, self‐healing ability within 12 h, rapid response time (120 ms), high (energy loss coefficient 0.07 at 150% strain), all single material. enhance cohesive energy, ensuring elasticity, while improve adhesive properties. As proof concept, can be fabricated into strain‐temperature dual‐modal e‐skin, exhibiting sensitivity, reliability, state‐independent performance. advancement highlights potential ionogels next‐generation wearable devices.
Язык: Английский
Процитировано
0