Self-powered porous polymer sensors with high sensitivity for machine learning-assisted motion and rehabilitation monitoring

Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109817 - 109817

Published: May 31, 2024

Language: Английский

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Carbon Quantum Dot-Functionalized Dermis-Derived Transparent Electronic Skin for Multimodal Human Motion Signal Monitoring and Construction of Self-Powered Triboelectric Nanogenerator

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(35), P. 46771 - 46788

Published: Aug. 21, 2024

Electronic skin (e-skin) is considered as a highly promising interface for human-computer interaction systems and wearable electronic devices. Through elaborate design assembly of various materials, it possesses multiple characteristics similar to human skin, including remarkable flexibility, stretchability, sensitivity temperature humidity, biocompatibility, efficient interfacial ion/electron transport capabilities. Here, we innovatively integrate multifunctional carbon quantum dots (CQDs), which exhibit conductivity, antibacterial properties, ultraviolet absorption, fluorescence emission, with poly(acrylic acid) glycerin (Gly) into three-dimensional network structure natural goatskin collagen fibers. top-down strategy enhanced by hydrogen bond reconstruction, successfully fabricated novel transparent e-skin (PAC-eSkin). This exhibited significant tensile properties (4.94 MPa strength 263.42% maximum breaking elongation), while also possessing Young's modulus (2.32 MPa). It noteworthy that the functionalized CQDs used was derived from discarded goat hair, addition Gly gave PAC-eSkin excellent antifreezing moisturizing properties. Due presence ultrasmall CQDs, creates channels within PAC-eSkin, could rapidly sense motion physiological signals (with gauge factor (GF) 1.88). Furthermore, had potential replace traditional electrode patches real-time monitoring electrocardiogram, electromyogram, electrooculogram signals, higher SNR (signal-to-noise ratio) 25.1 dB. Additionally, customizable size shape offer vast possibilities construction single-electrode triboelectric nanogenerator systems. We have reason believe development this based on CQDs-functionalized dermal matrices can pave new way innovations in human–computer interfaces their sensing application diverse scenarios.

Language: Английский

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A fast electron-injection strategy for enhancing triboelectric surface charge density of polymers

Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109351 - 109351

Published: Feb. 2, 2024

Language: Английский

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Suppressing charge recombination by synergistic effect of ferromagnetic dual-tribolayer for high output triboelectric nanogenerator

Nano Today, Journal Year: 2024, Volume and Issue: 57, P. 102319 - 102319

Published: May 30, 2024

Language: Английский

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Orange peel-like triboelectric nanogenerators with multiscale micro-nano structure for energy harvesting and touch sensing applications

Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109280 - 109280

Published: Jan. 11, 2024

Language: Английский

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Multi-Functional Nb4C3T -silk nanofiber composites for self-powered sensors and soft actuators

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 506, P. 160125 - 160125

Published: Jan. 1, 2025

Language: Английский

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Magnet Gear-based Triboelectric Nanogenerator Harvesting Energy from Boiling Heat Transfer Environment

Nano Energy, Journal Year: 2025, Volume and Issue: 137, P. 110804 - 110804

Published: Feb. 20, 2025

Language: Английский

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Recent advances in TENGs collecting acoustic energy: From low-frequency sound to ultrasound

Nano Energy, Journal Year: 2024, Volume and Issue: 129, P. 109951 - 109951

Published: July 9, 2024

Language: Английский

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Regulation of Dihedral Angle on Molecular Engineering for Enhancing Triboelectric Performance

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: July 30, 2024

Abstract The performance of triboelectric polymers relies on their molecular structure. Therefore, investigating how to construct high‐performance structures becomes imperative, yet the relationship between microscopic structural parameters and remains unclear. In this study, is studied dihedral angles adjacent conjugated planes performance. Various polyimide monomers are synthesized manipulate within chains. Introducing larger in polyimides (PIs) reduces conjugation chains, suppressing formation charge transfer complexes (CTCs), widening energy gap orbitals. With increase angles, output improved by 100%. surface density 335 µC·m −2 achieved through synergistic effect high retention capability PI film properties corona‐polarized fluorinated ethylene propylene (FEP). A large angle can form numerous deep traps effectively prevent escaping while ensuring stable output. This study provides a feasible strategy for construction structures, enriching understanding influence polymer materials promote fluorine‐free environmentally friendly polymers.

Language: Английский

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Flexible staircase triboelectric nanogenerator for motion monitoring and gesture recognition

Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109849 - 109849

Published: June 6, 2024

Language: Английский

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