High-performance fibrous strain sensor with synergistic sensing layer for human motion recognition and robot control

Advanced Composites and Hybrid Materials, Год журнала: 2023, Номер 6(4)

Опубликована: Июнь 17, 2023

Язык: Английский

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Thermal and Moisture Managing E‐Textiles Enabled by Janus Hierarchical Gradient Honeycombs

Advanced Materials, Год журнала: 2023, Номер 36(13)

Опубликована: Дек. 19, 2023

Moisture and thermal comfort are critical for long-term wear. In recent years, there has been rapidly growing attention on the importance of comfortability in wearable electronic textiles (e-textiles), particularly fields such as health monitoring, sports training, medical diagnosis treatment, where is crucial. Nonetheless, simultaneously regulating moisture human body without compromising performance remains a significant challenge to date. Herein, managing e-textile (TMME-textile) that integrates unidirectional water transport daytime radiative cooling properties with highly sensitive sensing developed. The TMME-textile made by patterning electrodes rationally designed Janus hierarchical gradient honeycombs offer wetting optical management. can unidirectionally pump excessive sweat, providing dry comfortable microenvironment users. Moreover, it possesses high solar reflectivity (98.3%) mid-infrared emissivity (89.2%), which reduce skin temperature ≈7.0 °C under intensity 1 kW m

Язык: Английский

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Electrochemical self-powered strain sensor for static and dynamic strain detections

Nano Energy, Год журнала: 2023, Номер 118, С. 108997 - 108997

Опубликована: Окт. 17, 2023

Язык: Английский

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High-Fidelity, Low-Hysteresis Bionic Flexible Strain Sensors for Soft Machines

ACS Nano, Год журнала: 2024, Номер 18(3), С. 2520 - 2530

Опубликована: Янв. 10, 2024

Stretchable flexible strain sensors based on conductive elastomers are rapidly emerging as a highly promising candidate for popular wearable electronic and soft-mechanical sensing devices. However, due to the intrinsic limitations of low fidelity high hysteresis, existing unable exploit their full application potential. Herein, design strategy successive three-dimensional crack network is proposed cope with uncoordinated variation output resistance signal arising from elastomer. The electrical characteristics sensor dominated by through greater concise mechanism. As result, developed elastomer bionic exhibit excellent performance in terms smaller overshoot response, lower hysteresis (∼2.9%), an ultralow detection limit (0.00179%). What's more, universal applicable many different fillers (including 0-D, 1-D, 2-D fillers). This approach improves accuracy reliability holds potential various applications fields e-skin soft robotic systems.

Язык: Английский

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Flexible Metasurfaces for Multifunctional Interfaces

ACS Nano, Год журнала: 2024, Номер 18(4), С. 2685 - 2707

Опубликована: Янв. 19, 2024

Optical metasurfaces, capable of manipulating the properties light with a thickness at subwavelength scale, have been subject extensive investigation in recent decades. This research has mainly driven by their potential to overcome limitations traditional, bulky optical devices. However, most existing metasurfaces are confined planar and rigid designs, functions, technologies, which greatly impede evolution toward practical applications that often involve complex surfaces. The disconnect between two-dimensional (2D) structures three-dimensional (3D) curved surfaces is becoming increasingly pronounced. In past two decades, emergence flexible electronics ushered an emerging era for metasurfaces. review delves into this cutting-edge field, focus on both conformal design fabrication techniques. Initially, we reflect milestones trajectories modern complemented brief overview theoretical underpinnings primary classifications. We then showcase four advanced emphasizing promising prospects relevance areas such as imaging, biosensing, cloaking, multifunctionality. Subsequently, explore three key trends including mechanically reconfigurable digitally controlled Finally, summarize our insights ongoing challenges opportunities field.

Язык: Английский

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Fishbone and nettle fiber inspired stretchable strain sensor with high sensitivity and wide sensing range for wearable electronics

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152281 - 152281

Опубликована: Май 15, 2024

Язык: Английский

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New Carbon Materials for Multifunctional Soft Electronics

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Март 16, 2024

Soft electronics are garnering significant attention due to their wide-ranging applications in artificial skin, health monitoring, human-machine interaction, intelligence, and the Internet of Things. Various soft physical sensors such as mechanical sensors, temperature humidity fundamental building blocks for electronics. While fast growth widespread utilization electronic devices have elevated life quality, consequential electromagnetic interference (EMI) radiation pose potential threats device precision human health. Another substantial concern pertains overheating issues that occur during prolonged operation. Therefore, design multifunctional exhibiting excellent capabilities sensing, EMI shielding, thermal management is paramount importance. Because prominent advantages chemical stability, electrical conductivity, easy functionalization, new carbon materials including nanotubes, graphene its derivatives, graphdiyne, sustainable natural-biomass-derived particularly promising candidates This review summarizes latest advancements based on across a range performance aspects, mainly focusing structure or composite design, fabrication method signals management. Furthermore, integration strategies corresponding intriguing highlighted. Finally, this presents prospects aimed at overcoming current barriers advancing development state-of-the-art

Язык: Английский

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Decoupled Temperature–Pressure Sensing System for Deep Learning Assisted Human–Machine Interaction

Advanced Functional Materials, Год журнала: 2024, Номер 34(52)

Опубликована: Авг. 20, 2024

Abstract With the rapid development of intelligent wearable technology, multimodal tactile sensors capable data acquisition, decoupling intermixed signals, and information processing have attracted increasing attention. Herein, a decoupled temperature–pressure dual‐mode sensor is developed based on single‐walled carbon nanotubes (SWCNT) poly(3,4‐ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) decorated porous melamine foam (MF), integrating with deep learning algorithm to obtain input terminal. Importantly, synergistic effect PEDOT:PSS SWCNT facilitates ideal capability sensitivity toward both temperature (38.2 µV K −1 ) pressure (10.8% kPa thermoelectric piezoresistive effects, respectively. Besides, low thermal conductivity excellent compressibility MF also endow it merits low‐temperature detection limit (0.03 K), fast response (120 ms), long‐term stability. Benefiting from outstanding sensing characteristics, assembled array showcases good capacity for identifying spatial distribution signals. assistance algorithm, displays high recognition accuracy 99% 98% corresponding “touch” “press” actions, respectively, realizes encrypted transmission accurate identification random sequences, providing promising strategy design high‐accuracy platform in human–machine interaction.

Язык: Английский

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Carbon Nanofibrous Aerogels Derived from Electrospun Polyimide for Multifunctional Piezoresistive Sensors

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(13), С. 16712 - 16723

Опубликована: Март 20, 2024

The fabrication of carbon aerogels with ultralow density, high electrical conductivity, and ultraelasticity still remains substantial challenges. This study utilizes electrospun polyimide aerogel as the source to fabricate flexible nanofibrous (PI-CNA) capable multifunctional applications. lightweight PI-CNA based piezoresistive sensor shows a wide linear range (0–217 kPa), rapid response/recovery time, fatigue resistance (12,000 cycles). More importantly, superior pressure sensing enables for all-range healthcare sensing, including pulse monitoring, physiological activity detection, speech recognition, gait recognition. Moreover, EMI SE A coefficient reach 45 dB 0.62, respectively, indicating outstanding absorption dominated shielding effects due multiple reflections absorption. Furthermore, exhibits satisfying Joule heating performance up 120 °C response time (10–30 s) under low supply voltages (1.5–5 V) possesses sufficient reliability repeatability in long-term repeated heating/cooling cycles. fabricated significant potential applications wearable technologies, energy conversion, electronic skin, artificial intelligence.

Язык: Английский

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Ag–thiolate interactions to enable an ultrasensitive and stretchable MXene strain sensor with high temporospatial resolution

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

Опубликована: Июнь 25, 2024

Abstract High-sensitivity strain sensing elements with a wide range, fast response, high stability, and small areas are desirable for constructing sensor arrays temporospatial resolution. However, current sensors rely on crack-based conductive materials having an inherent tradeoff between their area performance. Here, we present molecular-level crack modulation strategy in which use layer-by-layer assembly to introduce strong, dynamic, reversible coordination bonds MXene silver nanowire-matrixed film. We this approach fabricate stretchable very (0.25 mm 2 ). It also exhibits ultrawide working range (0.001–37%), sensitivity (gauge factor ~500 at 0.001% >150,000 35%), response time, low hysteresis, excellent long-term stability. Based high-performance element facile process, array device density of 100 per cm is realized. demonstrate the practical high-density as multichannel pulse system monitoring pulses terms spatiotemporal

Язык: Английский

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