Recent advances in tannic acid-based gels: Design, properties, and applications

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 339, P. 103425 - 103425

Published: Feb. 15, 2025

Language: Английский

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pH-responsive bioadhesive with robust and stable wet adhesion for gastric ulcer healing

Biomaterials, Journal Year: 2024, Volume and Issue: 309, P. 122599 - 122599

Published: April 30, 2024

Language: Английский

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Recent Advances of Stretchable Nanomaterial-Based Hydrogels for Wearable Sensors and Electrophysiological Signals Monitoring

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(17), P. 1398 - 1398

Published: Aug. 27, 2024

Electrophysiological monitoring is a commonly used medical procedure designed to capture the electrical signals generated by body and promptly identify any abnormal health conditions. Wearable sensors are of great significance in signal acquisition for electrophysiological monitoring. Traditional devices often bulky have many complex accessories thus, only suitable limited application scenarios. Hydrogels optimized based on nanomaterials lightweight with excellent stretchable properties, solving problem high-quality wearable sensors. Therefore, development hydrogels brings tremendous potential physiological This review first introduces latest advancement made from different nanomaterials, such as nanocarbon materials, nanometal two-dimensional transition metal compounds, Second, versatile properties these composite hydrogel reviewed. Then, their applications various monitoring, electrocardiogram electromyographic analysis, electroencephalogram discussed. Finally, current status future prospects nanomaterial-optimized summarized. We hope this will inspire using nanomaterial-based hydrogels.

Language: Английский

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Nucleobase‐Driven Wearable Ionogel Electronics for Long‐Term Human Motion Detection and Electrophysiological Signal Monitoring

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

Published: Sept. 29, 2024

Abstract Ionogels are considered as ideal candidates for constructing flexible electronics due to their superior electrical conductivity, flexibility, high thermal and electrochemical stability. However, it remains a great challenge simultaneously achieve sensitivity, repeated adhesion, good self‐healing, biocompatibility through straightforward strategy. Herein, inspired by nucleobase‐tackified strategy, multifunctional adhesive ionogel is developed one‐step radical polymerization of acrylated adenine/uracil (Aa/Ua) acrylic acid (AA) monomers in sodium caseinate (SC) stabilized liquid metal dispersions. As soft conductive filler, the incorporating not only improves but also enhances mechanical strength, satisfying stretchable sensing application. The large amount noncovalent interactions (hydrogen bonding, coordination, ion‐dipole interactions) within networks enable ionogels possess excellent stretchability, skin‐like softness, strong adhesion. Based on these desirable characteristics, suitable wearable strain sensors precisely detect diverse human movements under extreme environments. Moreover, seamless adhesion with skin allows function bioelectrode patch long‐term high‐quality electrophysiological signal acquisition. This research provides promising strategy designing tailored functionalities that satisfy application requirements.

Language: Английский

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Advances in Electrically Conductive Hydrogels: Performance and Applications

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

Electrically conductive hydrogels are highly hydrated 3D networks consisting of a hydrophilic polymer skeleton and electrically materials. Conductive have excellent mechanical electrical properties further extensive application prospects in biomedical treatment other fields. Whereas numerous been fabricated, set general principles, that can rationally guide the synthesis using different substances fabrication methods for various scenarios, remain central demand hydrogels. This paper systematically summarizes processing, performances, applications hydrogels, discusses challenges opportunities this field. In view shortcomings high conductivity, matchable properties, as well integrated devices machines, it is proposed to synergistically design process with complex surroundings. It believed will present fresh perspective research development expand

Language: Английский

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Paintable, Fast Gelation, Highly Adhesive Hydrogels for High‐fidelity Electrophysiological Monitoring Wirelessly

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 25, 2024

High-fidelity wireless electrophysiological monitoring is essential for ambulatory healthcare applications. Soft solid-like hydrogels have received significant attention as epidermal electrodes because of their tissue-like mechanical properties and high biocompatibility. However, it challenging to develop a hydrogel electrode that provides robust contact adhesiveness with glabrous skin hairy scalp high-fidelity, continuous signal detection. Here, paintable, fast gelation, highly adhesive, conductive engineered high-fidelity monitoring. The hydrogel, consisting gelatin, gallic acid, sodium citrate, lithium chloride, glycerol, Tris-HCl buffer solution exhibits reversible thermal phase transition capability, which endows the attributes on-skin applicability in situ gelation 15 s, thereby addressing aforementioned limitations. introduction acid enhances adhesive facilitating secure attachment or scalp. To accentuate potential applications at-home health monitoring, are demonstrated electrocardiogram recording one hour during various daily activities, well simultaneous electroencephalogram 30 min nap.

Language: Английский

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Organic Semiconductors based Wearable Bioelectronics

Wearable electronics., Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Multi-layer fabric assembly ultra-high sensitivity dynamic anti-crosstalk sensing interactive interface based on secondary-enhanced microstructure for multi-task detection

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 506, P. 159938 - 159938

Published: Jan. 1, 2025

Language: Английский

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One-Step Assembly of Conductive Coatings from Polyphenol and Nanocarbon-PIL: A Versatile Approach for Fabricating Multifunctional Sensors

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111083 - 111083

Published: Jan. 1, 2025

Language: Английский

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Mussel‐Like Silk Fibroin Hydrogel With Skin Compliance Soft Electrode for Wearable Devices

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Abstract Flexible wearable electronic devices, capable of real‐time physiological monitoring for personalized health management, are increasingly recognized their convenience, comfort, and customization potential. Despite advancements, challenges persist soft electrodes due to the skin's complex surface, biocompatibility demands, modulus mismatch. In response, a mussel‐inspired polydopamine‐nanoclay‐silk fibroin hydrogel (DA‐C‐SFH) is introduced, synthesized via two‐step process. The initial polydopamine oxidation introduces free catechol groups through polydopamine‐incorporated nanoclay, followed by integration with silk fibroin, refining network at mesoscopic scale. This DA‐C‐SFH exhibits low modulus, high elasticity, adhesive properties, biocompatibility, enabling conformal skin adhesion. It effectively detects subtle signals, such as pulse waves, serves epidermal electrode, recording various electrophysiological including electrocardiograms electromyograms, thus underscoring its potential in medical electronics applications.

Language: Английский

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