Designing MXene hydrogels for flexible and high-efficiency electromagnetic wave absorption using digital light processing 3D printing

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159489 - 159489

Published: Jan. 11, 2025

Language: Английский

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Extraction and incorporation of cellulose microfibers from textile wastes into MXene-enhanced PVA-borax hydrogel for multifunctional wearable sensors

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 295, P. 139640 - 139640

Published: Jan. 7, 2025

Language: Английский

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Hydrogel Strain Sensors for Integrating Into Dynamic Organ‐on‐a‐Chip

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract Current hydrogel strain sensors have never been integrated into dynamic organ‐on‐a‐chip (OOC) due to the lack of sensitivity in aqueous cell culture systems. To enhance sensing performance, a novel sensor is presented which MXene layer coated on bottom surface pre‐stretched anti‐swelling substrate di‐acrylated Pluronic F127 (F127‐DA) and chitosan (CS) for isolation from top surface. The fabricated display high (gauge factor 290.96), wide range (0–100%), repeatability. demonstrate its application, alveolar epithelial cells are cultivated forming barriers, then lung‐on‐a‐chip (LOC) This system can sensitively monitor normal physiological breathing, pathological inflammation stimulated by lipopolysaccharide (LPS), alleviated through drug intervention.

Language: Английский

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Breathable Ultrathin Film Sensors Based on Nanomesh Reinforced Anti‐Dehydrating Organohydrogels for Motion Monitoring

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

Published: Sept. 6, 2024

Abstract Flexible hydrogel film sensors have great advantages as human–machine interfaces for conformal contact with bio‐tissues, but suffer from weakness and dehydration, compromising flexibility performance. Here, a breathable, highly stretchable, anti‐dehydrating ultrathin organohydrogel skin‐attachable strain sensor long‐term motion monitoring is developed. An electrospun TPU (eTPU) nanomesh hidden strength used skeleton to host in situ free radical polymerization of 2‐acrylamido‐2‐methyl propane sulfonic acid (AMPS) acrylamide (AAm) form an interpenetrating double network glycerol water solvent. Extensive hydrogen bonding between eTPU P(AMPS‐ co ‐AAm) yields (≈200 µm) synergetic deformation energy dissipation upon stretching, leading record‐high stretchability up 920%, fracture toughness 20.14 MJ m −3 , 10 000 J −2 robustness over 4000 notched stretching cylcles 50% strain. The binary glycerol/water solvent imparts excellent anti‐dehydration at room temperature d, stable sensory performance −20 60 °C. With high vapor transmission rate 1.3 kg d −1 the ensures comfortable skin continuous knee flexion throughout day signals. These are promising wearable applications.

Language: Английский

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Low mechanical-hysteresis conductive hydrogel conferred by chitosan bridging and MXene nanoconfined mechanism

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 348, P. 122849 - 122849

Published: Oct. 12, 2024

Language: Английский

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Anti-freezing conductive hydrogel with exceptional mechanical properties and stable sensing performance at -30 °C

Materials Horizons, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Conductive hydrogels with stable sensing performance are highly required in soft electronic devices. However, these tend to solidify and experience structural damage at sub-zero temperatures, leading material breakdown device malfunction. The main challenge lies effectively designing the micro/nano-structure enhance mechanical properties strain while preventing freezing hydrogels. Here, we present a rapid strategy for developing MXene bridging double-network structure-based sensor using polyacrylamide agar that can maintain functionality even an extremely low temperature of -30 °C. By incorporating MXenes as catalyst expedite free radical polymerization, achieve outstanding room (a high response range 1000%, signal linearity 0.998, gauge factor (GF) value 1.41). This surpasses those reported many other Importantly, also observe micro-nanostructure hydrogel extreme approximately °C results exceptional strain-detection up 250%) 0.995 GF 1.25 due its remarkably point (<-80 °C). These findings highlight application our hydrogel-based tactile low-temperature environments.

Language: Английский

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Dual network ionized hydrogels with high electrical conductivity and strong mechanical properties for wearable drug delivery patches

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 111743 - 111743

Published: Jan. 1, 2025

Language: Английский

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Sodium alginate supramolecular nanofibers in synergy with surface crack engineering to prepare tough and highly sensitive hydrogels

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 279, P. 135507 - 135507

Published: Sept. 11, 2024

Language: Английский

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Integrated wearable collaborative strain sensor with simultaneous self-healing and superhydrophobic abilities for stable sensing monitoring

Applied Materials Today, Journal Year: 2024, Volume and Issue: 39, P. 102339 - 102339

Published: July 18, 2024

Language: Английский

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Ultra-fast light repair, ultrasensitive, large strain detection range PDA@RGO/EVA composites fiber flexible strain sensor

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 377, P. 115755 - 115755

Published: Oct. 1, 2024

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