Recent progress in flexible sensors based on 2D materials

Journal of Semiconductors, Год журнала: 2025, Номер 46(1), С. 011607 - 011607

Опубликована: Янв. 1, 2025

Abstract With the rapid development of internet things (IoT) and wearable electronics, role flexible sensors is becoming increasingly irreplaceable, due to their ability process convert information acquisition. Two-dimensional (2D) materials have been widely welcomed by researchers as sensitive layers, which broadens range application advantages large specific surface area, tunable energy bands, controllable thickness at atomic level, stable mechanical properties, excellent optoelectronic properties. This review focuses on five different types 2D for monitoring pressure, humidity, sound, gas, so on, realize recognition conversion human body environmental signals. Meanwhile, main problems possible solutions based layers are summarized.

Язык: Английский

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Flexible Pressure Sensor Composed of Multi-Layer Textile Materials for Human–Machine Interaction Applications

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Flexible pressure sensors have shown significant application prospects in fields such as artificial intelligence and precision manufacturing. However, most flexible are often prepared using polymer materials precise micronano processing techniques, which greatly limits the widespread of sensors. Here, this work chooses textile material construction for sensor, its latitude longitude structure endows sensor with a natural structure. The was designed multilayer stacking strategy by combining two-dimensional MXene materials. experiment shows that sensitivity is 52.08 kPa

Язык: Английский

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Polymer-based flexible piezoresistive pressure sensors based on various micro/nanostructures array

Composites Part A Applied Science and Manufacturing, Год журнала: 2024, Номер 190, С. 108648 - 108648

Опубликована: Дек. 9, 2024

Язык: Английский

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Recent Developments and Applications of Tactile Sensors with Biomimetic Microstructures

Biomimetics, Год журнала: 2025, Номер 10(3), С. 147 - 147

Опубликована: Фев. 27, 2025

Humans possess an innate ability to perceive a wide range of objects through touch, which allows them interact effectively with their surroundings. Similarly, tactile perception in artificial sensory systems enables the acquisition object properties, human physiological signals, and environmental information. Biomimetic sensors, as emerging sensing technology, draw inspiration from biological exhibit high sensitivity, rapid response, multimodal perception, stability. By mimicking mechanisms microstructures, these sensors achieve precise detection mechanical thereby paving way for advancements applications. This review provides overview key mechanisms, microstructure designs, advanced fabrication techniques biomimetic sensors. The system architecture design is also explored. Furthermore, highlights significant applications recent years, including texture recognition, health detection, human–machine interaction. Finally, challenges future development prospects related are discussed.

Язык: Английский

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Dynamic Bonding for In‐Situ Welding of Multilayer Elastomers Enables High‐Performance Wearable Electronics for Machine Learning‐Assisted Active Rehabilitation

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract Patients with hand dysfunction require joint rehabilitation for functional restoration, and wearable electronics can provide physical signals to assess guide the process. However, most are susceptible failure under large deformations owing instability in layered structure, thereby weakening signal reliability. Herein, an in‐situ self‐welding strategy that uses dynamic hydrogen bonds at interfaces integrate conductive elastomer layers into highly robust is proposed. This enables interlocking of different microstructures, achieving high interfacial toughness (e.g., ≈700 J m −2 micropyramid layer smallest welding areas) preventing structural failure. The welded exhibit excellent pressure‐sensing performance, including sensitivity, a wide sensing range, long‐term stability, surpassing those unwelded electronics. reliable collection comprehensive pressure during rehabilitation, which beneficial assessing levels patient. Furthermore, machine learning‐assisted system using t ‐distributed stochastic neighbor embedding artificial neural network models facilitate home‐based active established, reduces need frequent hospital visits. analyzes quantifies timely manner, allowing patients adjust training programs autonomously, accelerating

Язык: Английский

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Biomimetic Self-Powered Smart Insole with AI-Enhanced Mechanodiagnosis for Continuous Gait Monitoring

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Continuous gait analysis is essential for early detection and management of neuromuscular disorders, yet current wearable technologies face limitations in sensing capacity, energy autonomy, real-time diagnostic capabilities, restricting their clinical adoption. Here, we present a biomimetic smart insole that synergizes nature-inspired sensing, self-sustaining harvesting, artificial intelligence (AI) to enable continuous, clinically actionable monitoring. Mimicking the mechanosensory architecture mantis legs, our dual-microstructure capacitive sensor achieves sensitivity 0.602 kPa^⁻¹, limit 0.10 Pa, broad range (0.10 Pa–1.40 MPa) with exceptional durability (>12,000 cycles), outperforming state-of-the-art sensors. A custom-designed flexible circuit wirelessly streams 16-channel pressure data companion APP, providing visualization dynamic force fields through chromatic mapping. The system’s autonomy ensured by hybrid perovskite solar cell/lithium-sulfur battery, enabling continuous operation across diverse environments. An embedded AI framework combines random forest classifier (96% accuracy foot arch abnormality detection) convolutional neural network (97.6% classifying 12 pathological patterns), translating raw into insights. This platform bridges gap between precision diagnostics, offering transformative potential disease detection, personalized rehabilitation, telemedicine, thus establishing paradigm next-generation intelligent wearables global healthcare.

Язык: Английский

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Flexible Pressure Sensors Enhanced by 3D‐Printed Microstructures

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 18, 2025

Abstract 3D printing has revolutionized the development of flexible pressure sensors by enabling precise fabrication diverse microstructures that significantly enhance sensor performance. These advancements have substantially improved key attributes such as sensitivity, response time, and durability, facilitating applications in wearable electronics, robotics, human–machine interfaces. This review provides a comprehensive analysis sensing mechanisms these sensors, emphasizing role microstructures, micro‐patterned, microporous, hierarchical designs, optimizing The advantages techniques, including direct indirect methods, creation complex with high precision adaptability are highlighted. Specific applications, human physiological signal monitoring, motion detection, soft emerging explored to demonstrate versatility sensors. Additionally, this briefly discusses challenges, material compatibility, optimization difficulties, environmental stability, well trends, integration advanced technologies, innovative multidimensional promising avenues for future advancements. By summarizing recent progress identifying opportunities innovation, critical insights into bridging gap between research real‐world helping accelerate evolution sophisticated 3D‐printed microstructures.

Язык: Английский

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A Flexible Smart Healthcare Platform Conjugated with Artificial Epidermis Assembled by Three-Dimensionally Conductive MOF Network for Gas and Pressure Sensing

Nano-Micro Letters, Год журнала: 2024, Номер 17(1)

Опубликована: Окт. 25, 2024

The rising flexible and intelligent electronics greatly facilitate the noninvasive timely tracking of physiological information in telemedicine healthcare. Meticulously building bionic-sensitive moieties is vital for designing efficient electronic skin with advanced cognitive functionalities to pluralistically capture external stimuli. However, realistic mimesis, both skin's three-dimensional interlocked hierarchical structures synchronous encoding multistimuli capacities, remains a challenging yet need simplifying design logic circuits. Herein, we construct an artificial epidermal device by situ growing Cu

Язык: Английский

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Cilia-Inspired Bionic Tactile E-Skin: Structure, Fabrication and Applications

Sensors, Год журнала: 2024, Номер 25(1), С. 76 - 76

Опубликована: Дек. 26, 2024

The rapid advancement of tactile electronic skin (E-skin) has highlighted the effectiveness incorporating bionic, force-sensitive microstructures in order to enhance sensing performance. Among these, cilia-like with high aspect ratios, whose inspiration is mammalian hair and lateral line system fish, have attracted significant attention for their unique ability enable E-skin detect weak signals, even extreme conditions. Herein, this review critically examines recent progress development cilia-inspired bionic E-skin, a focus on columnar, conical filiform microstructures, as well fabrication strategies, including template-based template-free methods. relationship between performance approaches thoroughly analyzed, offering framework optimizing sensitivity resilience. We also explore applications these systems across various fields, such medical diagnostics, motion detection, human–machine interfaces, dexterous robotics, near-field communication, perceptual decoupling systems. Finally, we provide insights into pathways toward industrializing aiming drive innovation unlock technology’s potential future applications.

Язык: Английский

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Two‐Photon Pumped Wavelength‐Tunable Single‐Mode Plasmonic Nanolaser with Ultralow Threshold

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 18, 2024

Abstract Nonlinear optics play an important role in laser technology, optical communication, integrated optics, and other fields. However, conventional two‐photon lasing faces challenges such as high thresholds large size, which hinder the miniaturization of lasers. In this study, structure single‐crystal Au/Al 2 O 3 /CsPbBr (ScAu/Al /CPB) is constructed to achieve pumped frequency upconversion single‐mode plasmonic lasing. The strong spatial confinement near‐field enhancement surface plasmons metals enable mode output a hybrid nanocavity, significantly reducing threshold. Additionally, by applying external mechanical strain, resonant wavelength dynamically regulated, further threshold 0.48 mJ cm −2 based on piezo‐electronic effect. These results provide effective strategy for all‐optical integration development smaller, faster, more efficient nanophotonics devices.

Язык: Английский

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