An adhesive, low swelling and conductive tri-network hydrogel for wearable electronic devices

Hu, Mengyuan; Qiu, Longhai; Huang, Yuliang; Wang, Donghui; Li, Jiongliang; Liang, Chunyong; Wu, Gen; Peng, Feng

doi:10.1039/d4tc01263a

J. Mater. Chem. C

2024

DOI: 10.1039/d4tc01263a

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An adhesive, low swelling and conductive tri-network hydrogel for wearable electronic devices

Mengyuan Hu,

Longhai Qiu,

Yuliang Huang

et al.

Abstract: Conductive hydrogels have great potential in wearable electronic devices for motion detection and medical monitoring applications. However, poor tissue adhesion and underwater swelling remain challenges for most hydrogels as in...

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Cited by 2 publications

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High-Performance Triple-Network Hydrogels Derived from Chrome Leather Scraps: Ultrahigh Compressive Strength, Adhesion, and Self-Recovery

Ren,

Lyu,

Gao

et al. 2024

Biomacromolecules

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The development of engineered hydrogels with high strength, self-recovery, and adhesion is essential for applications requiring resistance to large deformations and cyclic loading. Herein, a triple-network (TN) hydrogel with ultrahigh compressive strength, strong adhesion, and good self-recovery was constructed by using tannic acid-modified chrome leather scrap hydrolysate as the first network, polyacrylamide as the second network, and poly-2-propenamide-2-methylpropanesulfonic acid as the third network. The ultrahigh (70 MPa compressive strength and 95% compression deformation) TN hydrogels were effectively created, which is attributed to the synergy of the three networks. The TN hydrogels display adhesion (adhesion strength > 20 kPa) ascribed to the introduction of phenolic hydroxyl groups in tannic acid. Intriguingly, the TN hydrogels exhibit excellent self-recovery performance (93.6% dissipated energy recovery at 70 °C) and shape memory performance (restored to the original shape in 20 s). These properties are essential for the development of highperformance hydrogels and promote the resource utilization of leather waste.

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High-Performance Triple-Network Hydrogels Derived from Chrome Leather Scraps: Ultrahigh Compressive Strength, Adhesion, and Self-Recovery

Ren,

Lyu,

Gao

et al. 2024

Biomacromolecules

View full text Add to dashboard Cite

show abstract

Single/Multi-Network Conductive Hydrogels—A Review

Hasan,

Bhuyan,

Jeong

2024

Polymers

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Hydrogels made from conductive organic materials have gained significant interest in recent years due to their wide range of uses, such as electrical conductors, freezing resistors, biosensors, actuators, biomedical engineering materials, drug carrier, artificial organs, flexible electronics, battery solar cells, soft robotics, and self-healers. Nevertheless, the insufficient level of effectiveness in electroconductive hydrogels serves as a driving force for researchers to intensify their endeavors in this domain. This article provides a concise overview of the recent advancements in creating self-healing single- or multi-network (double or triple) conductive hydrogels (CHs) using a range of natural and synthetic polymers and monomers. We deliberated on the efficacy, benefits, and drawbacks of several conductive hydrogels. This paper emphasizes the use of natural polymers and innovative 3D printing CHs-based technology to create self-healing conductive gels for flexible electronics. In conclusion, advantages and disadvantages have been noted, and some potential opportunities for self-healing single- or multi-network hydrogels have been proposed.

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An adhesive, low swelling and conductive tri-network hydrogel for wearable electronic devices

Abstract: Conductive hydrogels have great potential in wearable electronic devices for motion detection and medical monitoring applications. However, poor tissue adhesion and underwater swelling remain challenges for most hydrogels as in...

Cited by 2 publications

References 41 publications

High-Performance Triple-Network Hydrogels Derived from Chrome Leather Scraps: Ultrahigh Compressive Strength, Adhesion, and Self-Recovery

High-Performance Triple-Network Hydrogels Derived from Chrome Leather Scraps: Ultrahigh Compressive Strength, Adhesion, and Self-Recovery

Single/Multi-Network Conductive Hydrogels—A Review

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