Polyphenol‐Mediated Multifunctional Human–Machine Interface Hydrogel Electrodes in Bioelectronics

Small Science, Journal Year: 2024, Volume and Issue: 5(1)

Published: Nov. 21, 2024

Human-machine interface (HMI) electrodes enable interactions between humans and bioelectronic devices by facilitating electrical stimulation recording neural activity. However, reconciling the soft, hydrated nature of living human tissues with rigid, dry properties synthetic electronic systems is inherently challenging. Overcoming these significant differences, which critical for developing compatible, effective, stable interfaces, has become a key research area in materials science technology. Recently, hydrogels have gained prominence use HMI because are similar to can be tuned through incorporation nanofillers. This review examines functional requirements highlights recent progress development polyphenol-mediated multifunctional hydrogel-based bioelectronics. Furthermore, aspects such as mussel-inspired adhesion, underlying mechanisms, tissue-matching mechanical properties, electrochemical performance, biocompatibility, biofouling resistance, stability under physiological conditions, anti-inflammatory, antioxidant discussed. Finally, applications bioelectronics further perspectives outlined. Advances hydrogel expected facilitate unprecedented integration biological devices, potentially revolutionizing various biomedical fields enhancing capabilities performance devices.

Language: Английский

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High toughness antifreeze conductive double network zwitterionic gel electrolyte for flexible supercapacitors

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 141(31)

Published: June 14, 2024

Abstract Flexible wearable supercapacitors based on hydrogel electrolyte are considered as flexible energy storage device with great potential. However, polymer gel electrolytes contain a large number of water molecules, which can easily freeze at sub‐zero temperatures, thus severely inhibiting ion transport. The ionic conductivity, cyclic stability and mechanical properties decrease low temperatures (below −25°C), seriously hinders the application supercapacitors. In order to improve ensure excellent conductivity electrolyte, freezing‐resistant constructed by supramolecular self‐assembly, has wide temperature range from 25 −80°C, stable ultra‐high strength. Low‐temperature‐resistant electrolytes, called supercapacitor‐SBMA‐co‐PVA‐AA/CaCl2 (FSAPC), have been designed prepared molecular‐scale self‐assembly rigid [2‐(methacryloyloxy)ethyl]dimethyl(3‐sulfopropyl) chains poly(vinyl alcohol) chains, test results showed that ‐SBMA‐co‐PVA‐AA/CaCl2 (PSAPC) 34.07 mS cm −1 25°C, supercapacitor specific capacity 8.57 Wh kg , retention rate is 91.2% even after 5000 cycles −25°C, −25°C for 31.88 −80°C 35.34 . potential applications amphiphilic in industrial development low‐temperature resistant noteworthy.

Language: Английский

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Robust, notch-insensitive and impact-resistance physical hydrogels with homogeneous topologic network enabled by partial hydrolysis and metal coordination

Polymer, Journal Year: 2024, Volume and Issue: 317, P. 127913 - 127913

Published: Dec. 9, 2024

Language: Английский

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Preparation of silver nanoparticles through the reduction of straw-extracted lignin and its antibacterial hydrogel

International Journal of Minerals Metallurgy and Materials, Journal Year: 2024, Volume and Issue: 32(2), P. 504 - 514

Published: Dec. 26, 2024

Language: Английский

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