Tough, stretchable dual-network liquid metal-based hydrogel toward high-performance intelligent on-off electromagnetic interference shielding, human motion detection and self-powered application

Nano Energy, Journal Year: 2023, Volume and Issue: 114, P. 108678 - 108678

Published: July 8, 2023

Language: Английский

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Enhanced mechanical strength and stretchable ionic conductive hydrogel with double-network structure for wearable strain sensing and energy harvesting

Composites Science and Technology, Journal Year: 2024, Volume and Issue: 255, P. 110732 - 110732

Published: July 2, 2024

Language: Английский

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MXene sheets surface constructed a strong hydrogel coating for sustainable oily wastewater separation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148971 - 148971

Published: Jan. 22, 2024

Language: Английский

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Using chitosan nanofibers to simultaneously improve the toughness and sensing performance of chitosan-based ionic conductive hydrogels

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 260, P. 129272 - 129272

Published: Jan. 9, 2024

Language: Английский

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Amphibious Polymer Materials with High Strength and Superb Toughness in Various Aquatic and Atmospheric Environments

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(2)

Published: Sept. 8, 2023

Herein, the fabrication of amphibious polymer materials with outstanding mechanical performances, both underwater and in air is reported. A polyvinyl alcohol/poly(2-methoxyethylacrylate) (PVA/PMEA) composite multiscale nanostructures prepared by combining solvent exchange thermal annealing strategies, which contributes to nanophase separation rigid PVA-rich soft PMEA-rich phases high-density crystalline domains PVA chains, respectively. Benefiting from nanostructure, PVA/PMEA hydrogel demonstrates excellent stability harsh (such as acidic, alkaline, saline) aqueous solutions, well superior behavior a breaking strength up 34.8 MPa toughness 214.2 MJ m

Language: Английский

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Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

Biosensors, Journal Year: 2023, Volume and Issue: 13(8), P. 823 - 823

Published: Aug. 15, 2023

Hydrogel-based wearable electrochemical biosensors (HWEBs) are emerging biomedical devices that have recently received immense interest. The exceptional properties of HWEBs include excellent biocompatibility with hydrophilic nature, high porosity, tailorable permeability, the capability reliable and accurate detection disease biomarkers, suitable device–human interface, facile adjustability, stimuli responsive to nanofiller materials. Although biomimetic three-dimensional hydrogels can immobilize bioreceptors, such as enzymes aptamers, without any loss in their activities. However, most suffer from low mechanical strength electrical conductivity. Many studies been performed on electroactive nanofillers, including biomacromolecules, carbon-based materials, inorganic organic nanomaterials, tackle these issues. Non-conductive even conductive may be modified by well redox species. All modifications led design development efficient nanocomposites biosensors. In this review, both conductive-based non-conductive-based derived natural synthetic polymers systematically reviewed. main synthesis methods characterization techniques addressed. behavior discussed detail. Finally, prospects potential applications biosensing, healthcare monitoring, clinical diagnostics highlighted.

Language: Английский

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Multiperformance PAM/PVA/CaCO₃ Hydrogel for Flexible Sensing and Information Encryption

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(25), P. 32762 - 32772

Published: June 13, 2024

Currently, the development of hydrogels with excellent mechanical properties (elasticity, fatigue resistance, etc.) and conductive can better meet their needs in field flexible sensor device applications. Generally, a denser cross-linking density tend to have properties, but improvement comes at expense reduced electrical conductivity. Directly generating CaCO3 hydrogel prepolymer not only increase its network also introduce additional ions enhance internal ionic strength, which is beneficial improving conductivity hydrogel. It still big challenge directly generate static solution ensure uniform dispersion Herein, we adopted an improved preparation method that generated particles be evenly dispersed until polymerization completed. Finally, PAM/PVA/CaCO3 supertensile, compressive, toughness, resistance was prepared. In addition, presence free Na+ Cl– gives sensing performance monitor daily human activities. On basis application information communication, further deepened this by combining characteristics themselves. Combined ASCII code, applied exchange encryption decryption, achieving antitheft function smart locks. A variety integrated broad prospects for sensors, highlighting great potential human–computer interaction intelligent protection.

Language: Английский

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Synergic enhancement of hydrogel upon multi-level hydrogen bonds via macromolecular design for dual-mode electronic skin

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151249 - 151249

Published: April 12, 2024

Language: Английский

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Ultrasensitive and Breathable Hydrogel Fiber‐Based Strain Sensors Enabled by Customized Crack Design for Wireless Sign Language Recognition

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Abstract Wearable strain sensors, capable of continuously detecting human movements, hold great application prospects in sign language gesture recognition to alleviate the daily communication barriers deaf and mute community. However, unsatisfactory sensing performance (such as low sensitivity, narrow detection range, etc.) wearing discomfort severely hinder their practical application. Here, high‐performance breathable hydrogel sensors are proposed by introducing an adjustable localized crack a closed‐loop connected fiber encapsulated porous elastomer films. Upon loading/unloading external strain, dynamic opening/closing pre‐cut causes rapid switching conductive path, resulting sharp changes resistance high sensitivity. Consequently, hydrogel‐based crack‐effect sensor exhibits superb sensitivity (GF up 3930), broad range (from 0.02% 80%), fast response/recovery time (78/52 ms), repeatability, structural stability. Based on capability accurately detect various strains across full wireless system is developed achieve accuracy 98.1% encoding decoding gestures with assistance machine learning, providing robust platform for efficient intelligibility barrier‐free communication.

Language: Английский

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High toughness and strong electromagnetic shielding properties of PAM/PEG dual network hydrogels

International Journal of Minerals Metallurgy and Materials, Journal Year: 2025, Volume and Issue: 32(3), P. 747 - 755

Published: Feb. 1, 2025

Language: Английский

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