Piezotronic Sensor for Bimodal Monitoring of Achilles Tendon Behavior

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: April 29, 2025

Abstract Bimodal pressure sensors capable of simultaneously detecting static and dynamic forces are essential to medical detection bio-robotics. However, conventional typically integrate multiple operating mechanisms achieve bimodal detection, leading complex device architectures challenges in signal decoupling. In this work, we address these limitations by leveraging the unique piezotronic effect Y-ion-doped ZnO develop a sensor (BPS) with simplified structure enhanced sensitivity. Through combination finite element simulations experimental validation, demonstrate that BPS can effectively monitor both forces, achieving an on/off ratio 1029, gauge factor 23,439 force response duration up 600 s, significantly outperforming performance piezoelectric sensors. As proof-of-concept, demonstrates continuous monitoring Achilles tendon behavior under mixed loading conditions. Aided deep learning algorithms, system achieves 96% accuracy identifying movement patterns, thus enabling warnings for dangerous movements. This work provides viable strategy monitoring, highlighting its potential wearable electronics.

Language: Английский

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Toward human-like touch sense via a bioinspired soft finger with self-decoupled bending and force sensing

Cell Reports Physical Science, Journal Year: 2024, Volume and Issue: 5(10), P. 102225 - 102225

Published: Oct. 1, 2024

Highlights•A bioinspired soft finger with proprioception and tactile sensing•A self-decoupled bimodal sensor high performance mechanical durability•Human-finger-like softness detection by monitoring the bending exerted force•Demonstration of for lump searching pulse-taking like a "robodoctor"SummaryThe sense touch means not only detecting force passively but also effortfully moving our fingers to "feel" world. Existing robotic hands can produce hand-like movements are still far behind in terms their sensing capabilities. Here, we propose (BSF) via seamlessly integrated conductive fiber coil. By measuring inductance resistance, angle at fingertip be obtained resolutions 0.02° 0.4 mN, respectively. Both actuation BSF have response time (50 ms) comparable that human mechanically durable practical applications. The achieve human-like object stiffness identify lumps underneath "normal tissues" simply pressing it. Moreover, it automatically locate artery participant's wrist take pulse.Graphical abstract

Language: Английский

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Wireless programmable patterns of electro-hydraulic haptic electronic skins able to create surface morphology

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 156612 - 156612

Published: Oct. 11, 2024

Language: Английский

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Strain-insensitive Stretchable Triboelectric Tactile Sensors via Interfacial Stress Dispersion

Nano Energy, Journal Year: 2024, Volume and Issue: 133, P. 110482 - 110482

Published: Nov. 16, 2024

Language: Английский

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Transparent Triboelectric Nanogenerators with high flexibility for human-interactive sensing and real-time monitoring

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110493 - 110493

Published: Nov. 1, 2024

Language: Английский

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