Triboelectric micro-flexure-sensitive fiber electronics

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

Опубликована: Март 15, 2024

Abstract Developing fiber electronics presents a practical approach for establishing multi-node distributed networks within the human body, particularly concerning triboelectric fibers. However, realizing monitoring micro-physiological activities remains challenging due to intrinsic variability and subtle amplitude of physiological signals, which differ among individuals scenarios. Here, we propose technical based on dynamic stability model sheath-core fibers, integrating micro-flexure-sensitive enabled by nanofiber buckling an ion conduction mechanism. This scheme enhances accuracy signal transmission process, resulting in improved sensitivity (detectable at ultra-low curvature 0.1 mm −1 ; flexure factor >21.8% bending range 10°.) robustness under micro flexure. In addition, also developed scalable manufacturing process ensured compatibility with modern weaving techniques. By combining precise micro-curvature detection, fibers unlock their full potential various diagnoses, upper limb muscle strength rehabilitation training.

Язык: Английский

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Innovations in Tactile Sensing: Microstructural Designs for Superior Flexible Sensor Performance

Advanced Functional Materials, Год журнала: 2024, Номер 34(44)

Опубликована: Июнь 22, 2024

Abstract Tactile sensors have garnered considerable interest for their capacity to detect and quantify tactile information. The incorporation of microstructural designs into flexible has emerged as a potent strategy augment sensitivity pressure variations, thereby enhancing linearity, response spectrum, mechanical robustness. This review underscores the imperative progress in microstructured sensors. Subsequently, discourse transitions prevalent materials employed fabrication sensor electrodes, encapsulation layers, active sensing mediums, elucidating merits limitations. In‐depth discussions are devoted adorned with microstructures, including but not limited to, micropyramids, microhemispheres, micropillars, microporous configurations, microcracks, topological interconnections, multilevel constructs, random roughness, biomimetic microstructures inspired by flora fauna, accompanied exemplar studies from each category. Moreover, utility within realm intelligent environments is explicated, highlighting application monitoring physiological signals, detection sliding motions, discernment surface textures. culminates critical examination paramount challenges predicaments that must be surmounted further development enhance functional performance sensors, paving way integration advanced sensory systems.

Язык: Английский

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Skin‐Inspired Multi‐Modal Mechanoreceptors for Dynamic Haptic Exploration

Advanced Materials, Год журнала: 2024, Номер 36(21)

Опубликована: Фев. 16, 2024

Abstract Active sensing is a fundamental aspect of human and animal interactions with the environment, providing essential information about hardness, texture, tackiness objects. This ability stems from presence diverse mechanoreceptors in skin, capable detecting wide range stimuli sensorimotor control biological mechanisms. In contrast, existing tactile sensors for robotic applications typically excel identifying only limited types information, lacking versatility requisite strategies to extract proactively. Here, inspired by haptic perception, skin‐inspired artificial 3D mechanoreceptor (SENS) multiple mechanical developed bridge action closed‐loop system dynamic exploration. A tensor‐based non‐linear theoretical model established characterize deformation (e.g., tensile, compressive, shear deformation) SENS, guidance design optimization multimode properties high fidelity. Based on recognizing objects improved accuracy (≈96%) further demonstrated. exploration approach shows promise such as autonomous learning, healthcare, space deep‐sea

Язык: Английский

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Multi-photon neuron embedded bionic skin for high-precision complex texture and object reconstruction perception research

Opto-Electronic Advances, Год журнала: 2025, Номер 0(0), С. 240152 - 240152

Опубликована: Янв. 1, 2025

Язык: Английский

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Hydrogel-based pressure sensors for electronic skin systems

Matter, Год журнала: 2025, Номер 8(3), С. 101992 - 101992

Опубликована: Март 1, 2025

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Microphase‐Separated Elastic and Ultrastretchable Ionogel for Reliable Ionic Skin with Multimodal Sensation

Advanced Materials, Год журнала: 2023, Номер 36(17)

Опубликована: Ноя. 23, 2023

Bioinspired artificial skins integrated with reliable human-machine interfaces and stretchable electronic systems have attracted considerable attention. However, the current design faces difficulties in simultaneously achieving satisfactory skin-like mechanical compliance self-powered multimodal sensing. Here, this work reports a microphase-separated bicontinuous ionogel which possesses properties mimics sensing ability of biological skin by ion-driven stimuli-electricity conversion. The exhibits excellent elasticity ionic conductivity, high toughness, ultrastretchability, as well Young's modulus similar to that human skin. Leveraging ion-polymer interactions enabled selective ion transport, can output pulsing or continuous electrical signals response diverse stimuli such strain, touch pressure, temperature sensitively, demonstrating unique Furthermore, ionogel-based I-skin concurrently sense different decouple variations from voltage assistance machine-learning model. ease fabrication, wide tunability, sensing, environmental tolerance ionogels demonstrate new strategy development next-generation soft smart mechano-transduction devices.

Язык: Английский

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Strong and Ultratough Ionogel Enabled by Ingenious Combined Ionic Liquids Induced Microphase Separation

Advanced Functional Materials, Год журнала: 2023, Номер 33(52)

Опубликована: Сен. 12, 2023

Abstract Ionogels have become a popular material in flexible electronics and soft robotics based on their excellent ionic conductivity, environmental tolerance, electrochemical stability. However, it remains challenge to develop an ionogel integrated with high strength, toughness, self‐healing, adhesion. Herein, novel strategy is established design high‐strength (0.97 MPa) tensile (980%), crack insensitivity, self‐healing the cosolvent method. By virtue of differential interactions between specific polymer various liquids gradient polarity, systems are employed achieve high‐performance ionogels by simple one‐step polymerization. Gel permeation chromatography, atomic force microscopy, time‐domain nuclear magnetism, density functional theoretical calculation used analyze reasons. Microphase separation can be induced hydrone or stretching enhance strength ionogel. Therefore, assembled as strain temperature sensors monitor human movement person's body low detection threshold (0.1 °C) extreme environments. This concept creates new path materials performance, provide prospective regulate situ microphase change performance resulting via

Язык: Английский

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Interface‐Anchored Covalent Organic Frameworks@Amino‐Modified Ti₃C₂T_x MXene on Nylon 6 Film for High‐Performance Deformable Supercapacitors

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(33)

Опубликована: Июнь 21, 2023

Designing deformable supercapacitors (D-SCs) that have robust skeleton and smoothly active channels for charges kinetic migration faradic storage are highly crucial wearable systems. Here, we develop the high-performance D-SCs made of covalent organic frameworks(COF)@amino-modified Ti3 C2 Tx deposited on decorated nylon 6 (DPA) film (COF@N-Ti3 /DPA) via layer-by-layer fabrication. The hierarchical COF@N-Ti3 /DPA exhibits admirable specific capacitance, rate performance cycling stability in three-electrode system due to superior H+ property large interfacial charge transfer clarified by density functional theory calculations. Additionally, solid-state deliver favourable energy practical energy-supply applications. Particularly, present high stabilities, with regard 80.7, 80.6 83.4 % capacitance retention after 5000 bending cycles, 2000 stretching cycles folding separately.

Язык: Английский

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Mechanical robust and highly conductive composite hydrogel reinforced by a combination of cellulose nanofibrils/polypyrrole toward high-performance strain sensor

Composites Part B Engineering, Год журнала: 2023, Номер 266, С. 111022 - 111022

Опубликована: Сен. 24, 2023

Язык: Английский

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Nanomaterial-based flexible sensors for metaverse and virtual reality applications

International Journal of Extreme Manufacturing, Год журнала: 2023, Номер 5(3), С. 032013 - 032013

Опубликована: Июнь 15, 2023

Abstract Nanomaterial-based flexible sensors (NMFSs) can be tightly attached to the human skin or integrated with clothing monitor physiological information, provide medical data, explore metaverse spaces. Nanomaterials have been widely incorporated into due their facile processing, material compatibility, and unique properties. This review highlights recent advancements in NMFSs involving various nanomaterial frameworks such as nanoparticles, nanowires, nanofilms. Different triggering interaction interfaces between metaverse/virtual reality (VR) applications, e.g. skin-mechanics-triggered, temperature-triggered, magnetically triggered, neural-triggered interfaces, are discussed. In context of interfacing physical virtual worlds, machine learning (ML) has emerged a promising tool for processing sensor data controlling avatars metaverse/VR many ML algorithms proposed technologies. paper discusses advantages, disadvantages, prospects applications.

Язык: Английский

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