Initiatorless Solar Photopolymerization of Versatile and Sustainable Eutectogels as Multi‐Response and Self‐Powered Sensors for Human–Computer Interface

Advanced Functional Materials, Год журнала: 2023, Номер 33(51)

Опубликована: Сен. 8, 2023

Abstract Eutectogels are emerging as an appealing soft conductor for self‐powered sensing and the next generation of flexible human–computer interactive devices owing to their inherent mechanical elasticity high ionic conductivity. However, it still remains a challenge simultaneously achieve multi‐functional multi‐response integrations through facile sustainable approach. Herein, self‐healing, environment tolerant, intrinsically conductive, recyclable eutectogel with multiple responses is developed via one‐step solar‐initiated polymerization deep eutectic solvents (DESs) liquids (ILs). Abundant hydrogen bonds ion‐dipole interactions impart eutectogels strength (8.8 MPa), ultra‐stretchability (>1100%), strong self‐adhesion (≈12 recyclability, autonomously self‐healing ability. Furthermore, conductive versatile sensations on strain, temperature, humidity can serve wearable sensors wireless motion recognition interaction control. More importantly, eutectogel‐assembled single‐electrode triboelectric nanogenerator (TENG) exhibits extreme environment‐tolerant fast self‐healable properties that contribute maintaining excellent stable electrical outputs in wide work temperature range (approximately −40–60 °C), which appear be promising electronics environmental adaptability.

Язык: Английский

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Designing Ultratough Single‐Network Hydrogels with Centimeter‐Scale Fractocohesive Lengths via Inelastic Crack Blunting

Advanced Materials, Год журнала: 2024, Номер 36(23)

Опубликована: Март 7, 2024

Abstract Fractocohesive length, defined as the ratio of fracture toughness to work fracture, measures sensitivity materials in presence flaws. The larger fractocohesive more flaw‐tolerant and crack‐resistant hydrogel. For synthetic soft materials, length is short, often on scale 1 mm. Here, highly flaw‐insensitive (HFI) single‐network hydrogels containing an entangled inhomogeneous polymer network widely distributed chain lengths are designed. HFI demonstrate a centimeter‐scale 2.21 cm, which highest ever recorded for hydrogels, unprecedented ≈13 300 J m −2 . uncommon flaw insensitivity results from inelastic crack blunting inherent network. When hydrogel stretched, large number short chains break while coiled long can disentangle, unwind, straighten, producing deformation that substantially blunts tip plastic manner, thereby deconcentrating crack‐tip stresses blocking extension. design strategy applicable various such polyacrylamide poly(N,N‐dimethylacrylamide) enables development composites.

Язык: Английский

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Leech‐Inspired Amphibious Soft Robot Driven by High‐Voltage Triboelectricity

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Leech locomotion, characterized by alternating sucker attachment and body contraction provides high adaptability stability on complex terrains. Herein, a leech‐inspired triboelectric soft robot is proposed for the first time, capable of amphibious movement, climbing, load‐carrying crawling. A high‐performance bionic system developed to drive control electro‐responsive robots. Its core components include: i) (LSR) made from segmented dielectric elastomer muscles. ii) The produces anisotropic frictional forces. iii) multi‐channel high‐voltage output nanogenerator (HDC‐TENG) effectively drives LSR. iv) unit adapted HDC‐TENG enables flexible LSR control. Using scalable structure muscles achieve maximum crawling speed 0.39 lengths per minute land (45 mm min −1 ) 0.22 in liquid (30.5 ). It can also carry payload 11.55 grams acrylic while This research sustainable promising new solution self‐powered energy sources suitable

Язык: Английский

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Thermoresponsive Hydrogels for the Construction of Smart Windows, Sensors, and Actuators

Accounts of Materials Research, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Язык: Английский

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Light-triggered multi-joint microactuator fabricated by two-in-one femtosecond laser writing

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Июль 17, 2023

Inspired by the flexible joints of humans, actuators containing soft have been developed for various applications, including grippers, artificial muscles, and wearable devices. However, integrating multiple microjoints into robots at micrometer scale to achieve multi-deformation modalities remains challenging. Here, we propose a two-in-one femtosecond laser writing strategy fabricate composed hydrogel metal nanoparticles, develop multi-joint microactuators with (>10), requiring short response time (30 ms) low actuation power (<10 mW) deformation. Besides, independent joint deformation control linkage deformation, co-planar spatial linkage, enables microactuator reconstruct variety complex human-like modalities. Finally, as proof concept, collection microcargos different locations is achieved double-joint micro robotic arm. Our will bring many potential application opportunities in microcargo collection, microfluid operation, cell manipulation.

Язык: Английский

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Nature's Blueprint in Bioinspired Materials for Robotics

Advanced Functional Materials, Год журнала: 2023, Номер 34(35)

Опубликована: Авг. 22, 2023

Abstract Soft robotics, an emerging field that focuses on the development of robots utilizing soft, flexible, and deformable materials, is revolutionizing traditional robotics (reliant rigid materials motors) broadening its range applications potential uses. In addition, by emulating structure, function, characteristics biological systems, bioinspired are facilitating significant progress in a diverse array soft robotic applications. This review offers overview employed exploring their applications, challenges, future research directions. For intuitive understanding, based primary abilities required habitats (terrestrial, aquatic, aerial) animals plants they mimic categorized. Furthermore, real‐world developed everyday human life presented. The novel category classification comprehensive analysis presented this provide insights into systems with to transform various industries enhance quality life.

Язык: Английский

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Soft Robots with Plant‐Inspired Gravitropism Based on Fluidic Liquid Metal

Advanced Science, Год журнала: 2024, Номер 11(18)

Опубликована: Март 6, 2024

Abstract Plants can autonomously adjust their growth direction based on the gravitropic response to maximize energy acquisition, despite lacking nerves and muscles. Endowing soft robots with gravitropism may facilitate development of self‐regulating systems free electronics, but remains elusive. Herein, acceleration‐regulated actuators are described that respond gravitational field by leveraging unique fluidity liquid metal in its self‐limiting oxide skin. The actuator is obtained magnetic printing fluidic heater circuit a thermoresponsive crystal elastomer. Joule heat gravity‐regulated resistance be programmed changing actuator's pose induce flow metal. bending degree dynamic interaction between thermomechanical gravity. A gravity‐interactive gripper also created controllable grasping releasing rotating actuator. Moreover, it demonstrated self‐regulated oscillation motion achieved interfacing monostable tape spring, allowing electronics‐free control bionic walker. This work paves avenue for metal‐based reconfigurable electronics perceive gravity or acceleration.

Язык: Английский

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Mechanical Regulation of Polymer Gels

Chemical Reviews, Год журнала: 2024, Номер 124(18), С. 10435 - 10508

Опубликована: Сен. 16, 2024

The mechanical properties of polymer gels devote to emerging devices and machines in fields such as biomedical engineering, flexible bioelectronics, biomimetic actuators, energy harvesters. Coupling network architectures interactions has been explored regulate supportive characteristics gels; however, systematic reviews correlating mechanics interaction forces at the molecular structural levels remain absent field. This review highlights engineering gel a comprehensive mechanistic understanding regulation. Molecular alters architecture manipulates functional groups/moieties level, introducing various permanent or reversible dynamic bonds dissipative energy. usually uses monomers, cross-linkers, chains, other additives. Structural utilizes casting methods, solvent phase regulation, mechanochemistry, macromolecule chemical reactions, biomanufacturing technology construct tailor topological structures, heterogeneous modulus compositions. We envision that perfect combination may provide fresh view extend exciting new perspectives this burgeoning also summarizes recent representative applications with excellent properties. Conclusions are provided from five aspects concise summary, mechanism, biofabrication upgraded applications, synergistic methodology.

Язык: Английский

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Modular multi-degree-of-freedom soft origami robots with reprogrammable electrothermal actuation

Proceedings of the National Academy of Sciences, Год журнала: 2024, Номер 121(20)

Опубликована: Май 6, 2024

Soft robots often draw inspiration from nature to navigate different environments. Although the inching motion and crawling of caterpillars have been widely studied in design soft robots, steering with local bending control remains challenging. To address this challenge, we explore modular origami units which constitute building blocks for mimicking segmented caterpillar body. Based on concept, report a Kresling robot enabled by electrothermal actuation. A compact lightweight structure is designed, fabricated, characterized integrated thermal bimorph actuators consisting liquid crystal elastomer polyimide layers. With reprogrammable actuation, multiunit caterpillar-inspired composed both active passive developed bidirectional locomotion precise curvature control. We demonstrate an robotic module picking up cargo assembling another achieve function. The concept can provide insight into future that grow, repair, enhance functionality.

Язык: Английский

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Recent advances on thermosensitive hydrogels-mediated precision therapy

Asian Journal of Pharmaceutical Sciences, Год журнала: 2024, Номер 19(3), С. 100911 - 100911

Опубликована: Апрель 14, 2024

Precision therapy has become the preferred choice attributed to optimal drug concentration in target sites, increased therapeutic efficacy, and reduced adverse effects. Over past few years, sprayable or injectable thermosensitive hydrogels have exhibited high potential. These can be applied as cell-growing scaffolds drug-releasing reservoirs by simply mixing a free-flowing sol phase at room temperature. Inspired their unique properties, been widely delivery treatment platforms for precision medicine. In this review, state-of-the-art developments are investigated, which covers from thermo-gelling mechanisms main components biomedical applications, including wound healing, anti-tumor activity, osteogenesis, periodontal, sinonasal ophthalmic diseases. The most promising applications trends of also discussed light features.

Язык: Английский

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