Nonswellable and highly sensitive hydrogel for underwater sensing DOI
Rongli Zhang,

Wentang Wang,

Zhuo Ge

et al.

Journal of Polymer Research, Journal Year: 2024, Volume and Issue: 32(1)

Published: Dec. 19, 2024

Language: Английский

Superstrong and Transparent Hydrogels with Homogeneous Multiple Networks DOI
Shuxing Yin, Yi Ding, Ying Zhang

et al.

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

Published: April 16, 2025

Language: Английский

Citations

0
Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors DOI Creative Commons

Huawei Gao,

Yupan Han,

Mengjie Huang

et al.

Advanced Sensor Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Conductive hydrogels (CHs) have received numerous attentions for potential applications in flexible electronics. However, the construction of high‐performance CHs with high stretchability, favorable electrical conductivity, and reversible adhesiveness simultaneously still remains a great challenge. Herein, an ionic CH above characteristics is proposed via introducing phytic acid (PA) into semi‐interpenetrating cross‐linked network poly(acrylamide‐co‐N‐(hydroxymethyl) acrylamide) chitosan hydrogels. The synergy hydrogen bonds electrostatic interactions endows obtained hydrogel stretchability (1131%), toughness (88.32 kJ·m −3 ), satisfactory (25.78 kPa to wood). presence PA enables composite exhibit conductivity. Impressively, resultant can be assembled wearable strain sensor present sensitivity 1.32 wide response range (0–1131%), rapid time (340 ms), excellent cyclic stability. More importantly, prepared stain precisely recognize complicated human movements physiological activities realize information encryption, making this promising candidate preparing

Language: Английский

Citations

0
Synergistic Enhancement of Hole–Bridge Structure and Molecular‐Crowding Effect in Multifunctional Eutectic Hydrogel Strain/Pressure Sensor for Personal Rehabilitation Training DOI
Wenwu Wang, Zeyu Ma,

Zilu Hu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Abstract Given the electrical signal transduction capability and excellent biocompatibility, conductive hydrogels are regarded as ideal candidates for high‐performance strain/pressure sensors applied in personalized medicine. However, there challenges concurrent attainment of flexible hydrogel‐based with remarkable conductivity, sensitivity, reliable stability. Herein, a synergistic strategy based on hole–bridge structure molecular‐crowding effect is proposed to fabricate multifunctional sensor. As‐prepared eutectic hydrogel displays comprehensive performances impressive conductivity (2.81 S m −1 ), boosted mechanical robustness (a tensile strength 2.95 MPa), environmental tolerance (≈79.8% water retention at 50 °C 20 days; frost resistance = −45.3 °C). Notably, hydrogel‐derived stretchable sensor effective antibacterial ability exhibits enhanced sensitivity (gauge factor 4.49) across wide linear range, supporting monitoring joint movement electrocardiographic signals, along on‐demand photothermal treatment. As demonstration, employment efficiently conveying information high‐fidelity handwriting recognition investigated assistance machine learning. This innovative holds high promise future applications wearable‐smart devices integrated wireless transmission modules, exhibiting great potential personal rehabilitation training healthcare monitoring.

Language: Английский

Citations

0
Acid-Triggered Charge-Switchable Antibacterial Hydrogel for Accelerated Healing of Gastric Mucosal Wounds DOI
Ziyi Zhou,

Liangyu Wang,

Dongzhi Yang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Infection with Helicobacter pylori (H. pylori) is a primary etiological factor for chronic gastritis, peptic ulcers, and gastric cancer. The limited specificity of antibiotics against H. pylori, combined the risk severe adverse events from endoscopic submucosal dissection (ESD), presents major global health challenge in treating mucosal injuries. To address this issue, we developed targeted antibacterial hydrogel based on charge-reversal amphiphilic molecule, designed harsh acid environment capable immediate strong adhesion. composed acryl aspartate (AASP) cysteine-grafted carboxymethyl chitosan (CMCS-NAC) as base matrix, integrated acid-responsive molecules (C16N-DCA). Simulated studies show that C16N-DCA undergoes charge reversal under acidic conditions (pH 3), enabling eradication mediated by acid, 98% efficacy sustained activity up to 36 h. In vitro vivo experiments rodent porcine models confirmed its safety conditions. This offers tissue protection effectively modulates wound microenvironment, facilitating healing presenting an easily adoptable solution management.

Language: Английский

Citations

0
Multiscale Cellulose-Enhanced Zwitterionic Hydrogels Based on Electrostatic Regulation for the Strain Sensor and Human Motion Monitoring DOI

T.Y. Li,

Yufan Lan,

Baochuang Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 20, 2025

Zwitterionic hydrogels have gained prominence in flexible electronics for their biocompatibility. However, applications are hindered by weak mechanical strength and low conductivity. Herein, we proposed an innovative strategy fabricating multiscale cellulose-modified zwitterionic through electrostatic regulation. The employed poly(vinyl alcohol) [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide matrix, where the dispersion-aggregation architecture of anionic carboxymethyl cellulose sodium cationic polyethylenimine-modified nanocrystals (PEI@CNC) was precisely controlled via protons. Furthermore, were fabricated cyclic freezing-thawing process situ monomer polymerization. results demonstrate that incorporation PEI@CNC leads to synergistic enhancement properties ionic tensile conductivity DPCC-0.25 sample 8.4 times 2.2 those original hydrogel, respectively. This is attributed dynamic hydrogen bonding interactions porous network based on ionized cellulose. Moreover, hysteresis area tests at 100% strain negligible, indicating excellent elasticity. Its strain-sensing capability exhibits hysteresis-free resistive responses across 1%-400% strains with stable cyclability real-time accuracy. DPCC-0.25-based sensors effectively monitor human body movements. In summary, this study provides new insights into regulation polysaccharide structures fabrication multifunctional hydrogels.

Language: Английский

Citations

0
Highly stretchable, self-adhesive, conductive, and tough hydrogel reinforced with cellulose nanofibers for wearable biosensor and ultrasonic nanogenerator DOI

Yijun Fu,

Junyi Zou,

Yijie Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 164010 - 164010

Published: May 1, 2025

Language: Английский

Citations

0
Effect of Molecular Structures on Entanglements and Mechanics of Zwitterionic Hydrogels DOI
Mengjie Si, Yan Jie Wang,

Yueman Tang

et al.

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

Published: May 23, 2025

Language: Английский

Citations

0
Ultra-low hysteresis, high-toughness, anti-swelling nanocomposite hydrogel derived from dynamic multiple noncovalent interactions for wearable strain sensing and underwater gait recognition DOI
Jingyu Tang, Yong Mei Chen, Kexin Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163845 - 163845

Published: May 1, 2025

Language: Английский

Citations

0
Nonswellable and highly sensitive hydrogel for underwater sensing DOI
Rongli Zhang,

Wentang Wang,

Zhuo Ge

et al.

Journal of Polymer Research, Journal Year: 2024, Volume and Issue: 32(1)

Published: Dec. 19, 2024

Language: Английский

Citations

0