Super Stretchable, Self‐Healing, Adhesive Ionic Conductive Hydrogels Based on Tailor‐Made Ionic Liquid for High‐Performance Strain Sensors

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(33)

Published: June 8, 2022

Abstract Ionic conductive hydrogels (ICHs) integrate the performance and soft nature of tissue‐like materials to imitate features human skin with mechanical sensory traits; thus, they are considered promising substitutes for conventional rigid metallic conductors when fabricating human‐motion sensors. However, simultaneous incorporation excellent stretchability, toughness, ionic conductivity, self‐healing, adhesion via a simple method remains grand challenge. Herein, novel ICH platform is proposed by designing phenylboronic acid‐ionic liquid (PBA‐IL) multiple roles that simultaneously realize highly mechanical, electrical, versatile properties. This elaborately designed semi‐interpenetrating network fabricated facile one‐step approach introducing cellulose nanofibrils (CNFs) into PBA‐IL/acrylamide cross‐linked network. Ingeniously, dynamic boronic ester bonds physical interactions (hydrogen electrostatic interactions) endow these remarkable stretchability (1810 ± 38%), toughness (2.65 0.03 MJ m −3 ), self‐healing property (92 2% efficiency), adhesiveness, transparency. Moreover, construction this material shows CNFs can synergistically enhance conductivity. The wide working strain range (≈1000%) high sensitivity (GF = 8.36) make candidate constructing next generation gel‐based sensor platforms.

Language: Английский

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Multifunctional conductive hydrogels and their applications as smart wearable devices

Journal of Materials Chemistry B, Journal Year: 2021, Volume and Issue: 9(11), P. 2561 - 2583

Published: Jan. 1, 2021

Recently, hydrogel-based conductive materials and their applications as smart wearable devices have been paid tremendous attention due to high stretchability, flexibility, excellent biocompatibility. Compared with single functional hydrogels, multifunctional hydrogels are more advantageous match various demands for practical applications. This review focuses on applied devices. Representative strategies conduction of discussed firstly: (1) electronic based the fillers (2) ionic charged ions. Then, common intensive research multiple functionalities such mechanical properties, sensory anti-freezing moisturizing adhesion self-healing properties is presented. The in human motion sensors, skins, personal healthcare diagnosis provided third part. Finally, we offer our perspective open challenges future areas interest used

Language: Английский

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Rapid self-healing and self-adhesive chitosan-based hydrogels by host-guest interaction and dynamic covalent bond as flexible sensor

Carbohydrate Polymers, Journal Year: 2021, Volume and Issue: 273, P. 118533 - 118533

Published: Aug. 4, 2021

Language: Английский

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Research progress on double-network hydrogels

Materials Today Communications, Journal Year: 2021, Volume and Issue: 29, P. 102757 - 102757

Published: Sept. 4, 2021

Language: Английский

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Highly conductive tissue-like hydrogel interface through template-directed assembly

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: April 18, 2023

Abstract Over the past decade, conductive hydrogels have received great attention as tissue-interfacing electrodes due to their soft and tissue-like mechanical properties. However, a trade-off between robust properties good electrical has prevented fabrication of tough, highly hydrogel limited its use in bioelectronics. Here, we report synthetic method for realization mechanically tough with modulus. We employed template-directed assembly method, enabling arrangement disorder-free, highly-conductive nanofibrous network inside stretchable, hydrated network. The resultant exhibits ideal material. Furthermore, it can provide adhesion (800 J/m 2 ) diverse dynamic wet tissue after chemical activation. This enables suture-free adhesive-free, high-performance successfully demonstrated ultra-low voltage neuromodulation high-quality epicardial electrocardiogram (ECG) signal recording based on vivo animal models. provides platform interfaces various bioelectronic applications.

Language: Английский

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Conductive polymer based hydrogels and their application in wearable sensors: a review

Materials Horizons, Journal Year: 2023, Volume and Issue: 10(8), P. 2800 - 2823

Published: Jan. 1, 2023

Hydrogels have been attracting increasing attention for application in wearable electronics, due to their intrinsic biomimetic features, highly tunable chemical-physical properties (mechanical, electrical, etc.), and excellent biocompatibility. Among many proposed varieties of hydrogels, conductive polymer-based hydrogels (CPHs) emerged as a promising candidate future sensor designs, with capability realizing desired features using different tuning strategies ranging from molecular design (with low length scale 10-10 m) micro-structural configuration (up 10-2 m). However, considerable challenges remain be overcome, such the limited strain sensing range mechanical strength, signal loss/instability caused by swelling/deswelling, significant hysteresis signals, de-hydration induced malfunctions, surface/interfacial failure during manufacturing/processing. This review aims offer targeted scan recent advancements CPH based technology, establishment dedicated structure-property relationships lab advanced manufacturing routes potential scale-up production. The CPHs sensors is also explored, suggested new research avenues prospects included.

Language: Английский

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Recent progress in polymer hydrogel bioadhesives

Journal of Polymer Science, Journal Year: 2021, Volume and Issue: 59(13), P. 1312 - 1337

Published: May 25, 2021

Abstract Adhesive hydrogels have broad applications in tissue adhesives, hemostatic agents, and biomedical sensors. Various bio‐inspired glues synthetic adhesives are clinically used as conventional agents auxiliary tools for wound closure. Medical needed to effectively quickly control bleeding, thereby reducing the risk of complications caused by severe blood loss. sensors need excellent skin compliance, mechanical properties, sensitivity, biological safety. This review focuses on recent progress adhesive hydrogel systems, their structures, adhesion mechanisms, construction strategies, emerging field.

Language: Английский

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A ionic liquid enhanced conductive hydrogel for strain sensing applications

Journal of Colloid and Interface Science, Journal Year: 2021, Volume and Issue: 606, P. 192 - 203

Published: Aug. 6, 2021

Language: Английский

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A bio-inspired, ultra-tough, high-sensitivity, and anti-swelling conductive hydrogel strain sensor for motion detection and information transmission

Materials Horizons, Journal Year: 2022, Volume and Issue: 9(12), P. 3057 - 3069

Published: Jan. 1, 2022

A bio-inspired, ultra-tough, high-sensitivity, and anti-swelling conductive hydrogel strain sensor for motion detection information transmission.

Language: Английский

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Modern designs of electrochemical sensor platforms for environmental analyses: Principles, nanofabrication opportunities, and challenges

Trends in Environmental Analytical Chemistry, Journal Year: 2023, Volume and Issue: 38, P. e00199 - e00199

Published: Feb. 11, 2023

In recent decades, much attention has been paid to using nanomaterials in the development of highly-sensitive sensors for environmental monitoring. This review describes how are being used develop electrochemical sensing platforms analysis (air pollution, water quality, soil nutrients, and pathogens). particular, we discuss use nanofabrication techniques (e.g., monolayer self-assembly, drop-casting, molecular imprinting, electrodeposition, situ polymerization, hydrogenation, 3D printing) fabrication high-sensitive electrodes is addressed. The potential carbon, organic, inorganic, hybrid enable automation, real-time detection, multiplexed test also Recent applications mobile, disposable, wearable, implantable, self-powered monitoring ions, particles, compounds, microorganisms, contaminants real samples covered. Finally, opportunities challenges high-performance optimizing their performance testing highlighted. All data only avilable this article

Language: Английский

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