Mechanically Robust and Anti‐Swelling Anisotropic Conductive Hydrogel with Fluorescence for Multifunctional Sensing

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 24, 2024

Abstract The intricate muscle arrangement structure endows the biological tissues with unique mechanical properties. Inspired by that, a mechanically robust and multifunctional anisotropic Polyacrylamide/Sodium alginate/Zirconium ion/Carbon dots (PAM/SA/Zr 4+ /CDs, PSZC) hydrogel is developed through synergistic effect of mechanical‐assisted stretching, Zr metal‐coordination CDs embedding. resulting exhibited an impressive tensile strength 2.56 MPa exceptional toughness 10.10 MJ m −3 along stretching direction, attributing to oriented alignment PAM SA molecular chains induced metal‐coordination. dense network endowed PSZC excellent anti‐swelling performance, achieving swelling ratio only 1.7% after being stored in water for 30 days. presence conferred remarkable electrical conductivity 2.15 S −1 hydrogel. Furthermore, integration carbon imparted fluorescence properties, rendering it visual sensing capabilities. Overall, straightforward strategy proposed fabricating suitable underwater sensing, offering valuable insights development high‐performance sensors.

Язык: Английский

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Stretchable and Self‐Powered Mechanoluminescent Triboelectric Nanogenerator Fibers toward Wearable Amphibious Electro‐Optical Sensor Textiles

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Июль 5, 2024

Abstract Flexible electro‐optical dual‐mode sensor fibers with capability of the perceiving and converting mechanical stimuli into digital‐visual signals show good prospects in smart human‐machine interaction interfaces. However, heavy mass, low stretchability, lack non‐contact sensing function seriously impede their practical application wearable electronics. To address these challenges, a stretchable self‐powered mechanoluminescent triboelectric nanogenerator fiber (MLTENGF) based on lightweight carbon nanotube is successfully constructed. Taking advantage mechanoluminescent‐triboelectric synergistic effect, well‐designed MLTENGF delivers an excellent enhancement electrical signal 200% evident optical whether land or underwater. More encouragingly, device possesses outstanding stability almost unchanged sensitivity after stretching for 200%. Furthermore, extraordinary detection distance up to 35 cm achieved MLTENGF. As demonstrations, MLTENGFs can be used home security monitoring, intelligent zither, traffic vehicle collision avoidance, underwater communication. Thus, this work accelerates development textile electronics

Язык: Английский

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Fabric Resistive and Capacitive Sensors using Wet-Spinning Wire of Conductive Silicone Rubber

Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116426 - 116426

Опубликована: Март 1, 2025

Язык: Английский

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Recent advances in multimodal mechanoluminescent sensors enabled by nanostructure design

Nanoscale, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Multifunctional coupling and signal decoupling achieved through nanostructure supramolecule design, enable multimodal mechanoluminescent materials to play an increasingly important role in interdisciplinary applications cutting-edge fields.

Язык: Английский

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Recyclable and Healable Electro‐Optical Fiber for Sensing and Information Transmission

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Abstract Electro‐optical fibers with dual‐mode sensing ability show broad potential in wearable electronics and intelligent human‐machine interaction. However, the complex multi‐step preparation procedures limited environmental adaptivity materials (stretchability, healability, recyclability, etc.) hinder its practical applications. Herein, based on a urea‐oxime polyurethane, fiber integrating electrical two‐color light‐emitting functions is developed using one‐step continuous coaxial wet‐spinning process, luminescent sulfides‐doped shell layer an ionogel conductive core layer. The exhibits excellent mechanical, electrical, optical healing capabilities efficiencies of 94%, 92%, 99%, which can be quickly recycled within 30 minutes. Utilizing electro‐optical bimodular perceptive fiber, multi‐scenario applications including insect phototaxis monitoring, luminous wearables, smart tripwires are demonstrated, revealing superiority programming architectures to adapt substrates shape or size diversity. Moreover, healing‐programmed tailored segments demonstrated for hybrid encrypted information transmission. This work inspires promising healing‐programming strategy healable wide tactile communicating.

Язык: Английский

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Carbon Quantum Dot Functionalized Nanofiber‐Based Triboelectric Nanogenerator With Boosted Output and Fluorescence Function

Interdisciplinary materials, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

ABSTRACT Advanced nanofibrous materials with excellent performance and functional integration is highly desired for developing emerging wearable electronics. In this work, carbon quantum dots/poly(vinylidene fluoride) (CDs/PVDF) based composite material proposed acts as a negative to boost output triboelectric nanogenerators (TENGs). The nanometer‐sized surface‐functionalized CDs acting nucleating inducers facilitate the polarized β ‐phase transition of PVDF polymer. more surface charge density CDs/PVDF membrane generated through PVDF, thereby leading larger electrostatic potential difference enhance transfer. Besides decreased beaded defects, uniform morphology fibers are yielded improve effective contact area. Moreover, nanofibers demonstrate unique multicolor fluorescence effect enabling promising applications in visualized displays sensing. Finally, fabricated TENG features short‐circuit current ~61.8 mA/m 2 maximum peak power ~11.7 W/m , exceeding that most state‐of‐the‐art nanofiber‐based reported date. As demonstration application potential, shows energy‐harvesting ability capacitors light up 125 green LEDs self‐powered sensing capability human motion monitoring. This work provides insights exploiting novel tribomaterials high‐output TENGs biomechanical energy harvesting, sensing, so forth.

Язык: Английский

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Recent progress of underwater triboelectric nanogenerators

MRS Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Язык: Английский

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Wearable triboelectric Ag/thermoplastic polyurethane yarns with core-shell structure for energy harvesting and underwater sensing

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161794 - 161794

Опубликована: Март 1, 2025

Язык: Английский

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Cross‐Scale Regulation of Coaxial Twisted Core‐Sheath Composite Yarn for Constructing Permeable Intelligent Fabric with Multiple Protection and Perception

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Abstract Smart fabrics with health protection, motion monitoring, and perception capabilities effectively managed optimized human health, significantly promoting the development of smart health. However, it remains challenging to achieve multifunctional mechanical robustness required for use in multiple scenarios without destroying characteristics softness air permeability. Here, a cross‐scale regulation strategy is presented based on chemical coupling‐physical twisting develop multiscale twisted core‐shell structure yarn. Benefiting from strong interfacial interactions coaxial wrapping structure, multi‐component functional particles are highly stably integrated into yarn while achieving ultra‐high strength (≈0.662 GPa). The resulting fabric exhibits good impact resistance (attenuate > 40% force), superior permeability (387.37 mm s −1 ), excellent eletromagnetic interference (EMI) shielding (36.1 dB), IR thermal camouflage, high triboelectric output ( V oc ≈39.1 V), ability sensitively perceive environment safety monitor real‐time. This study addresses long‐lasting challenge balancing functionality comfort offers new perspective developing next‐generation advanced wearable protective fabrics.

Язык: Английский

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All-Gel-Based Triboelectric Noncontact Sensor for Human Motion Perception

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Flexible noncontact sensors are of great significance in contemporary applications. Nevertheless, conventional that rely on metal electrodes have limited flexibility, and their multilayer architectures likely to experience interfacial delamination during extended use. To tackle these problems, we introduce an all-gel-based flexible triboelectric sensor, which consists two parts, i.e., the gelatin/poly(vinyl alcohol) (PVA)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/graphene (G) electrode hydrogel PVA/cellulose/carbon nanotubes (CNT) aerogel. The not only features outstanding biocompatibility but also exhibits high conductivity. aerogel demonstrates excellent mechanical properties, such as good elasticity durability. This sensor can stably output a current 1.18 μA, charge 18.4 nC/cm2, voltage 3.7 V at stable state. It accurately reliably detect wide range human motions, elbow bending, knee movement, running, providing reliable approach for motion perception facilitating progress relevant fields.

Язык: Английский

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