Recent advancements and perspectives in conductive hydrogel-based flexible all-in-one supercapacitors

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 641, P. 236902 - 236902

Published: April 2, 2025

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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Advanced Liquid Metal-Based Hydrogels for Flexible Electronics

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(19), P. 27713 - 27739

Published: May 5, 2025

With the rapid development of flexible electronics in wearable devices, healthcare and Internet Things (IoT), liquid metals (LMs)-based hydrogels have emerged as cutting-edge functional materials due to their high electrical conductivity, tunable mechanical properties, excellent biocompatibility, unique self-healing properties. Through various physical or chemical methods, LMs can be integrated form multifunctional LMs-based hydrogels, thus broadening potential application fields. In this Review, recent advancement for is comprehensively systematically reviewed from three aspects synthesis applications. For first time, existing innovative methods are classified summarized, including patterned on/inside hydrogel substrates, conductive fillers polymeric initiators cross-linkers with organic/inorganic materials. The mechanism also stated detail highlight multiple roles adjusting versatile applications electronics, sensors, wireless communications, electromagnetic interference (EMI) shielding, soft robot actuators, energy storage conversion, etc., separately described. Finally, current challenges future prospects proposed.

Language: Английский

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Physicochemical Dual Cross-Linked Multifunctional Conductive Organohydrogel Sensors for Fireworks Burn Wound Healing and Intelligent Real-Time Monitoring

Polymer science & technology., Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Conductive hydrogels have garnered significant attention in the realm of future flexible electronic devices due to their properties such as flexibility, electrical conductivity, frost resistance, and biocompatibility. However, integration numerous functional applications biomedical field still presents notable challenges. In this research, a rigid hard-structured network was formed by cross-linking gallic acid grafted chitosan (CS–GA) tannic (TA) with poly(vinyl alcohol) (PVA) through physical freezing. The noncovalent hydrogen bonding during freezing thawing process facilitated formation microcrystalline domains amorphous hydrogel system. Functional proteins from eggshell membrane were cross-linked tetra-armed poly(ethylene glycol) maleimide (4am-PEG-MAL) via thiol-olefin click chemistry, lysozyme incorporated into an antibacterial component nucleophilic substitution reaction. These chemical methods resulted soft-structured that enhanced mechanical (maximum stress 2.15 MPa elongation 605%). use ionic liquids/ethylene glycol/water (ILs/EG/H2O) ternary solvents instead single solvent not only provided resistance but also imparted excellent conductivity (0.37 ± 0.04 S/m). Notably, organohydrogel showed good antimicrobial biocompatibility effective providing emergency cooling after fireworks burns promoting wet healing broken skin minimize scarring. field, multifunctional can serve wearable device monitor movement amplitude wounds real-time, offering novel approach deep learning-assisted wound healing. nature biological promising applications.

Language: Английский

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Stretchable, fast response and adhesive MXene-based hydrogels for wearable strain sensor

Composites Communications, Journal Year: 2024, Volume and Issue: unknown, P. 102245 - 102245

Published: Dec. 1, 2024

Language: Английский

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