Lignin-Mediated Dual Conductive Hydrogels with High Conductivity, Antibacterial Activity and Biocompatibility for Chronic Wound Repair DOI Creative Commons

Jianhong Lin,

Mengyao Chen,

Wei Zhao

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 283 - 283

Published: April 11, 2025

In recent years, conductive polymer hydrogels based on polypyrrole (PPy) combined with electrical stimulation (ES) have emerged as a promising approach for chronic wound repair. However, in practical applications, PPy often exhibits limitations such poor water dispersion, weak inherent conductivity and lack of biological functionality. To address these challenges, this study proposes an innovative design hydrogel that employs natural biopolymer, lignin sulfonate (Lgs), both dispersant dopant PPy, while incorporating silver nanoparticles (Ag NPs) to confer the antibacterial properties. The results showed dispersion was significantly improved, high 2.82 ± 0.04 mS/cm through double conduction mechanism Ag NPs. exhibited activity against Escherichia coli (E. coli) Staphylococcus aureus (S. aureus), rate could exceed 90%. vitro tests demonstrated good biocompatibility, adhesion ability (7.97 0.56 kPa) hemostatic ability. Furthermore, vivo animal experiments ES achieved 93.71 2.46% closure within 14 days, which can accelerate healing, promote collagen deposition epithelial tissue regeneration. These findings demonstrate developed serve effective platform ES-assisted

Language: Английский

Preparation and Performance Study of Dual-Network Photo-Curable Conductive Silk Fibroin Composite Hydrogel DOI Open Access

Liangduo Li,

Xujing Zhang, Yan Xu

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(4), P. 779 - 779

Published: Feb. 11, 2025

The printing precision of hydrogels directly determines the mechanical and electrical performance scaffolds. In this study, poly(3,4-ethylenedioxythiophene)-poly (styrenesulfonate) (PEDOT:PSS) was compounded with glycidyl methacrylate-modified silk fibroin (Sil-MA) through a one-pot method to increase solid content ink, enhancing its mechanical, electrical, printability properties. A dual-network photo-curable conductive composite hydrogel (CDMA) successfully prepared. results show that introduction PEDOT:PSS significantly improved conductivity hydrogel. (The bandgap decreased from 2.36 eV 1.125 eV, maximum reached 0.534 S/m.) It also enhanced microscopic 3D network density properties (compressive modulus up 192 kPa). Moreover, demonstrated good stability during cyclic testing, providing new approach developing materials capable high-precision stable performance.

Language: Английский

Citations

0
Skin-like Heterogeneous and Self-Healing Conductive Hydrogel toward Ultrasensitive Marine Sensing DOI
Yanan Liu,

Jiehan Lin,

Junjie Wei

et al.

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

Published: Feb. 25, 2025

Flexible wearable electronic devices based on hydrophobic, conductive hydrogels have attracted widespread attention in the field of underwater sensing. However, traditional homogeneous tend to compromise their conductivity and sensing performance when achieving hydrophobicity, high complexity marine environments further reduces service life. Here, we develop a seawater-resistant hydrogel with ultrahigh sensitivity self-healing ability by introduction skin-like heterogeneous structure, consisting hydrophobic outer layer that protects against seawater internal senses. Based structure obtained through surface modification confined nitrogen-alkylation reaction, simultaneously achieves satisfying resistance (contact angle 123.2°), ionic (2.86 S m–1), excellent (GF = 6.15), harmonizing contradiction between water hydrogels. In addition, abundant hydrogen-bonding dipole–dipole interactions endow an outstanding ability, exhibiting high-efficiency behavior seawater. Underwater strain sensors constructed can be used for detecting human motion simulated real-time signal transmission, showcasing great potential as field.

Language: Английский

Citations

0
Next-Generation Wearable Technologies: The Rise of Multifunctional Hydrogels in Smart Electronics DOI
Areeba Khayal, Shahab A.A. Nami

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145265 - 145265

Published: March 1, 2025

Language: Английский

Citations

0
Anti-freezing and long-term stabilized photonic-ionic organogels for high sensitive wearable motion sensors DOI

Kai Gong,

Xuewei Lv, Dong Zhou

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162474 - 162474

Published: April 1, 2025

Language: Английский

Citations

0
Lignin-Mediated Dual Conductive Hydrogels with High Conductivity, Antibacterial Activity and Biocompatibility for Chronic Wound Repair DOI Creative Commons

Jianhong Lin,

Mengyao Chen,

Wei Zhao

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 283 - 283

Published: April 11, 2025

In recent years, conductive polymer hydrogels based on polypyrrole (PPy) combined with electrical stimulation (ES) have emerged as a promising approach for chronic wound repair. However, in practical applications, PPy often exhibits limitations such poor water dispersion, weak inherent conductivity and lack of biological functionality. To address these challenges, this study proposes an innovative design hydrogel that employs natural biopolymer, lignin sulfonate (Lgs), both dispersant dopant PPy, while incorporating silver nanoparticles (Ag NPs) to confer the antibacterial properties. The results showed dispersion was significantly improved, high 2.82 ± 0.04 mS/cm through double conduction mechanism Ag NPs. exhibited activity against Escherichia coli (E. coli) Staphylococcus aureus (S. aureus), rate could exceed 90%. vitro tests demonstrated good biocompatibility, adhesion ability (7.97 0.56 kPa) hemostatic ability. Furthermore, vivo animal experiments ES achieved 93.71 2.46% closure within 14 days, which can accelerate healing, promote collagen deposition epithelial tissue regeneration. These findings demonstrate developed serve effective platform ES-assisted

Language: Английский

Citations

0