Fabrication and characterization of silver nanowire-coated porous alginate wet-laid webs for wound dressing applications

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 139770 - 139770

Published: Jan. 1, 2025

Language: Английский

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Near-infrared photothermal silk fibroin/polydopamine nanospheres with incorporated silver nanoparticles for efficient antibacterial application

Journal of Biomaterials Science Polymer Edition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 18

Published: Feb. 10, 2025

Bacterial infections and the emergence of drug-resistant after misuse antibiotics are threats to human health worldwide. Photothermal nanomaterials incorporating metallic antibacterial agents offer a promising solution. Herein, an nanocomposite (Ag@SF@PDA) comprising silver nanoparticles (AgNPs) with silk fibroin/polydopamine nanospheres (SF@PDA) was designed for efficient application. Specifically, AgNPs were reduced in situ by polydopamine encapsulated outer layer. The Ag@SF@PDA, diameter about 144.7 nm, had spherical shape rough surface. Under 808 1.5 W/cm2 NIR near-infrared (NIR) irradiation, Ag@SF@PDA demonstrated excellent photothermal performance stability, reaching maximum temperature 56.8 °C 12 min. Their improved as concentration increased. viability results L929 fibroblasts vitro that good biocompatibility. Even when increased 0.5 mg/mL, cells still maintained their viability. Of note, exhibited remarkably high efficacies against both Staphylococcus aureaus Escherichia coli irradiation. above 99.9% under irradiation comparable those ampicillin. These have great potential

Language: Английский

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Electrospinning Trilayer Dressing of PLA/ZnO with Controlled Released Profiles for Visible pH Monitoring and Effective Exudate Management

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

Published: April 23, 2025

To address persistent challenges in wound care, including exudate management, infection prevention, and healing monitoring, this study developed a multifunctional fiber dressing using electrospinning technology. The system integrates patterned hydrophobic polylactic acid/zinc oxide (PLA/ZnO) inner layer providing antimicrobial protection drainage; polyacrylonitrile/polydopamine (PAN/PDA) intermediate water transport enabling unidirectional transfer; an outer PAN-based functional membrane incorporating sodium polyacrylate (SPA), phenol red (PSP), tetracycline hydrochloride (TCH) for controlled drug release visual status monitoring. comprehensive evaluation revealed exceptional performance: rapid removal within 3.35 s, 96 h sustained antibacterial (68.6% cumulative release), pH-responsive chromatic transition (yellow-to-red at pH 5-9), significant efficacy against Escherichia coli Staphylococcus aureus (inhibition zone diameters of 10 18 mm, respectively). exhibited balance mechanical strength (6.1 MPa tensile strength) breathability (13.4 mm/s air permeability rate). By integrating three core functions─efficient regulation, intelligent monitoring─this architecture demonstrates clinical applicability postoperative care chronic therapy.

Language: Английский

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Preparation of polyvinyl alcohol/chitosan nanofibrous films incorporating graphene oxide and lanthanum chloride by electrospinning method for potential photothermal and chemical synergistic antibacterial applications in wound dressings

Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials, Journal Year: 2023, Volume and Issue: 148, P. 106162 - 106162

Published: Oct. 9, 2023

Language: Английский

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Biocompatible, robust, waterproof and breathable PDMS-based PU fibrous membranes for potential application in wound dressing

Materials Today Communications, Journal Year: 2023, Volume and Issue: 38, P. 107870 - 107870

Published: Dec. 15, 2023

Language: Английский

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Electrophoretic deposition of curcumin-loaded mesoporous bioactive glass nanoparticle-chitosan composite coatings on titanium for treating tumor-induced bone defect

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 289, P. 111950 - 111950

Published: Nov. 5, 2024

Language: Английский

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Engineering multifunctional and robust superhydrophilic nanofiber contamination resistance membranes for ultrafast oil–water separation

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132868 - 132868

Published: April 1, 2025

Language: Английский

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NIR responsive electrospun composite membranes for on-demand delivery of Ag ions to enhance treatment of bacteria-infected wounds

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163428 - 163428

Published: May 1, 2025

Language: Английский

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Multifunctional Superhydrophobic Sponge In Situ Anchoring of Ag-MnO₂ via Polydopamine Activation for Efficient Oil–Water Separation, Photothermal Conversion and Antibacterial Applications

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

Published: May 6, 2025

Frequent oil spills and the discharge of oily wastewater pose serious threats to environment, ecosystems, humans. Herein, a multifunctional superhydrophobic sponge was successfully prepared through in situ growth Ag-MnO2 nanoparticles assisted by polydopamine rapid deposition subsequent hydrophobic silicon modification. Owing synergistic effects hierarchical micro/nanostructure methyl-terminated surface modification, obtained has water contact angle (WCA) 156.5°, demonstrating excellent chemical stability structural durability under harsh environmental media mechanical damage. For oil-water separation, adsorption capacity modified for various oils ranges from 58.2 132.6 times its own weight great separation efficiency up 98.38%. Through photothermal conversion effect nanocomposite, temperature material can reach 64.1 °C simulated radiation, achieving recovery high-viscosity oil. Additionally, immobilization silver within skeleton effectively inhibits Escherichia coli Staphylococcus aureus, exhibiting antibacterial properties that facilitate elimination bacteria organically contaminated sources. Therefore, this study provides high potential efficient application crude recovery, pollution water.

Language: Английский

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Near-Infrared Light-Responsive Nanofibrous Membranes for Treatment of Bacterial Wound Infections

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(21), P. 20298 - 20309

Published: Oct. 31, 2023

Bacterial wound infections pose a significant challenge for both patients and healthcare providers. To effectively treat bacterial infections, it is critical to develop functional dressings that can eradicate bacteria promote healing. Herein, we report facile eco-friendly route preparing near-infrared (NIR) light-responsive bifunctional botanicals nanofibrous membrane as dressing the synergistic treatment of infections. The as-prepared consisted poly(vinyl alcohol) support matrix, tannic acid–Fe(III) nanoparticles NIR laser-activated photothermal nanoagents, berberine hydrochloride active botanicals. exhibited high porosity, hydrophilicity, breathability, biocompatibility, rendering an optimal dressing. More importantly, sterilization performance under laser irradiation produce sufficient hyperthermia on-demand release In vivo experiments demonstrated could kill in early stages infected wounds, collagen deposition, accelerate summary, our presents immense potential clinical applications preventing promoting skin repair.

Language: Английский

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