A stretchable, environmentally tolerant, and photoactive liquid metal/MXene hydrogel for high performance temperature monitoring, human motion detection and self-powered application

Nano Energy, Год журнала: 2023, Номер 117, С. 108875 - 108875

Опубликована: Сен. 6, 2023

Язык: Английский

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Artificial Neuron Devices

Chemical Reviews, Год журнала: 2023, Номер 123(23), С. 13796 - 13865

Опубликована: Ноя. 17, 2023

Efforts to design devices emulating complex cognitive abilities and response processes of biological systems have long been a coveted goal. Recent advancements in flexible electronics, mirroring human tissue's mechanical properties, hold significant promise. Artificial neuron devices, hinging on artificial synapses, bioinspired sensors, actuators, are meticulously engineered mimic the systems. However, this field is its infancy, requiring substantial groundwork achieve autonomous with intelligent feedback, adaptability, tangible problem-solving capabilities. This review provides comprehensive overview recent devices. It starts fundamental principles synaptic explores sensory systems, integrating synapses sensors replicate all five senses. A systematic presentation nervous follows, designed emulate system functions. The also discusses potential applications outlines existing challenges, offering insights into future prospects. We aim for illuminate burgeoning inspiring further innovation captivating area research.

Язык: Английский

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Design of stretchable and self-powered sensing device for portable and remote trace biomarkers detection

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

Опубликована: Авг. 26, 2023

Timely and remote biomarker detection is highly desired in personalized medicine health protection but presents great challenges the devices reported so far. Here, we present a cost-effective, flexible self-powered sensing device for H2S analysis various application scenarios based on structure of galvanic cells. The mechanism attributed to change electrode potential resulting from chemical adsorption gas molecules surfaces. Intrinsically stretchable organohydrogels are used as solid-state electrolytes enable stable long-term operation under stretching deformation or environments. open-circuit exhibits high sensitivity, low limit, excellent selectivity H2S. Its non-invasive halitosis diagnosis identification meat spoilage demonstrated, emerging commercial value portable medical electronics food security. A wireless sensory system has also been developed monitoring with participation Bluetooth cloud technologies. This work breaks through shortcomings traditional chemiresistive sensors, offering direction theoretical foundation designing wearable sensors catering other stimulus requirements.

Язык: Английский

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3D Janus structure MXene/cellulose nanofibers/luffa aerogels with superb mechanical strength and high-efficiency desalination for solar-driven interfacial evaporation

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 645, С. 306 - 318

Опубликована: Апрель 24, 2023

Язык: Английский

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Deep‐Learning‐Assisted Thermogalvanic Hydrogel E‐Skin for Self‐Powered Signature Recognition and Biometric Authentication

Advanced Functional Materials, Год журнала: 2024, Номер 34(18)

Опубликована: Янв. 11, 2024

Abstract Self‐powered electronic skins (e‐skins), as on‐skin human‐machine interfaces, play a significant role in cyber security and personal electronics. However, current self‐powered e‐skins are primarily constrained by complex fabricating process, intrinsic stiffness, signal distortion under deformation, inadequate comprehensive performance, thereby hindering their practical applications. Herein, novel highly stretchable (534.5%), ionic conductive (4.54 S m −1 ), thermogalvanic (1.82 mV K ) hydrogel (TGH) is facilely fabricated one‐pot method. Owing to the formation of Li + (H 2 O) n hydration structure, TGH presents excellent anti‐freezing non‐drying performance. It remains flexible (3.86 at −20 °C shows no obvious degradation thermoelectrical performance over 10 days. Besides, acting e‐skin, combined with deep learning technology for signature recognition biometric authentication successfully demonstrated, achieving an accuracy 92.97%. This work exhibits TGH‐based e‐skin's tremendous potential new generation human‐computer interaction information security.

Язык: Английский

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A Robust and Adhesive Hydrogel Enables Interfacial Coupling for Continuous Temperature Monitoring

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

Опубликована: Апрель 25, 2023

Abstract Continuous temperature monitoring by flexible hydrogel‐based electronics achieves rapid advances, overcoming the drawbacks of rigid and unportable thermocouples. However, an open question is whether how thermosensitive hydrogel designing can prevent mechanical mismatching between devices skin‐tissues reduces interfacial failure. Herein, a versatile thermistor epidermal sensor (HTES) paradigm engineered consisting self‐adhesive function layer (PEST) in tandem with surface spraying Ag interdigital electrode. Leveraging advantage catechol chemistry inspired tannic acid‐coated cellulose nanocrystals, resultant PEST adhesion‐cohesion equilibrium along superior thermosensitivity. The assembled HTES thereby yields unprecedented features thermosensitivity (TCR = 1.43% °C −1 ), exceptional integrity (hammering 200 cycles, current variation <9%), impressive compatibility (adhesion strength, 25 kPa), environmental stability (thermosensation retention 98% over 5 days). By in‐situ microstructure observation, unique geometrical synchronization arbitrary curvilinear surfaces (e.g., sphere, cone, saddle) stemming from elastic dissipation discrete rupture adhesive fibrillar bridges validated, affording competitive advantages than that state‐of‐the‐art for alleviating deterioration, which dramatically inspires advanced design strategies paves way commercialization attachable electronics.

Язык: Английский

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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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Nature-inspired interfacial engineering for energy harvesting

Nature Reviews Electrical Engineering, Год журнала: 2024, Номер 1(4), С. 218 - 233

Опубликована: Март 18, 2024

Язык: Английский

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Intrinsically stretchable organic photovoltaics by redistributing strain to PEDOT:PSS with enhanced stretchability and interfacial adhesion

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Июнь 8, 2024

Abstract Intrinsically stretchable organic photovoltaics have emerged as a prominent candidate for the next-generation wearable power generators regarding their structural design flexibility, omnidirectional stretchability, and in-plane deformability. However, formulating strategies to fabricate intrinsically that exhibit mechanical robustness under both repetitive strain cycles high tensile strains remains challenging. Herein, we demonstrate high-performance with an initial conversion efficiency of 14.2%, exceptional stretchability (80% maintained at 52% strain), cyclic durability (95% retained after 100 10%). The is primarily realised by delocalising redistributing in active layer highly PEDOT:PSS electrode developed straightforward incorporation ION E, which simultaneously enhances itself meanwhile reinforces interfacial adhesion polyurethane substrate. Both enhancements are pivotal factors ensuring excellent electrode, further effectively delays crack initiation propagation top layer, enables limited performance degradation cycles.

Язык: Английский

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Cellulose nanofiber/MXene/AgNWs composite nanopaper with mechanical robustness for high-performance humidity sensor and smart actuator

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 406, С. 135375 - 135375

Опубликована: Фев. 5, 2024

Язык: Английский

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