Photo-responsive electrospun polymer nanofibers: Mechanisms, properties, and applications

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 146, P. 101312 - 101312

Published: May 18, 2024

Language: Английский

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Asymmetric wettability fibrous membranes: Preparation and biologic applications

Composites Part B Engineering, Journal Year: 2023, Volume and Issue: 269, P. 111095 - 111095

Published: Nov. 18, 2023

Language: Английский

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Constructing Hierarchical Polymer Nanocomposites with Strongly Enhanced Thermal Conductivity

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(36), P. 42900 - 42911

Published: Aug. 30, 2023

The rapid advancement of communication technology has substantially increased the demand for advanced electronic packaging materials with high thermal conductivity and outstanding electrical insulation properties. In this study, we design polyvinyl alcohol/polydopamine-modified boron nitride nanosheet (PVA/BNNS@PDA) nanocomposites hierarchical structures by combining electrospinning, vacuum filtration deposition, hot pressing. modified BNNS@PDA improves interaction between filler polymer matrix while reducing interfacial resistance, resulting in superior conductivity, excellent insulation, perfect flexibility. PVA/BNNS@PDA possess an ultrahigh in-plane 16.6 W/(m·K) at 35.54 wt % content. Even after 2000 folds, do not undergo any crack, showing their behavior. Furthermore, exhibit a volume resistivity above 1014 Ω·cm, which is well standard insulating materials. Based on these results, work provides novel method to produce offering new perspective management

Language: Английский

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Engineering surgical face masks with photothermal and photodynamic plasmonic nanostructures for enhancing filtration and on-demand pathogen eradication

Biomaterials Science, Journal Year: 2024, Volume and Issue: 12(4), P. 949 - 963

Published: Jan. 1, 2024

Development of a light-responsive face mask with enhanced filtration properties and on-demand photodynamic photothermal-driven pathogen eradication.

Language: Английский

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NIR-activated electrospun nanodetonator dressing enhances infected diabetic wound healing with combined photothermal and nitric oxide-based gas therapy

Journal of Nanobiotechnology, Journal Year: 2024, Volume and Issue: 22(1)

Published: May 8, 2024

Abstract Diabetic wounds pose a challenge to healing due increased bacterial susceptibility and poor vascularization. Effective requires simultaneous biofilm elimination angiogenesis stimulation. In this study, we incorporated polyaniline (PANI) S-Nitrosoglutathione (GSNO) into polyvinyl alcohol, chitosan, hydroxypropyltrimethyl ammonium chloride chitosan (PVA/CS/HTCC) matrix, creating versatile wound dressing membrane through electrospinning. The combines the advantages of photothermal antibacterial therapy nitric oxide gas therapy, exhibiting enduring effective bactericidal activity disruption against methicillin-sensitive Staphylococcus aureus , methicillin-resistant Escherichia coli . Furthermore, membrane’s PTT effect NO release exhibit significant synergistic activation, enabling nanodetonator-like burst NIR irradiation disintegrate biofilms. Importantly, nanofiber sustained uniform oxide, thereby catalyzing advancing cellular migration. Ultimately, employment culminated in efficacious amelioration diabetic-infected Sprague–Dawley rats, achieving closure within concise duration 14 days. Upon applying PVA-CS-HTCC-PANI-GSNO membrane, it swiftly eradicates bacteria 5 min, enhancing its inherent anti-biofilm properties powerful action therapy. It also promotes angiogenesis, exhibits excellent biocompatibility, is easy use, highlighting potential treating diabetic wounds. Graphical

Language: Английский

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Light-Activated Nanofibers: Advances in Photo-Responsive Electrospun Polymer Technologies

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: 64(4), P. 397 - 438

Published: Oct. 1, 2024

Language: Английский

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Electrospun Poly(vinyl alcohol)-Based Conductive Semi-interpenetrating Polymer Network Fibrous Hydrogel: A Toolbox for Optimal Cross-Linking

ACS Materials Au, Journal Year: 2023, Volume and Issue: 3(5), P. 464 - 482

Published: June 8, 2023

Cross-linking of poly(vinyl alcohol) (PVA) creates a three-dimensional network by bonding adjacent polymer chains. The cross-linked structure, upon immersion in water, turns into hydrogel, which exhibits unique absorption properties due to the presence hydrophilic groups within PVA chains and, simultaneously, ceases be soluble water. can adjusted chemical modification or blending with other substances, such as polymers, e.g., conductive poly[3-(potassium-5-butanoate)thiophene-2,5-diyl] (P3KBT). In this work, PVA-based semi-interpenetrating networks (semi-IPNs) are successfully fabricated. systems obtained result electrospinning PVA/P3KBT precursor solutions different concentrations and then cross-linking using "green", environmentally safe methods. One approach consists thermal treatment (H), while second combines stabilization ethanol heating (E). comprehensive characterization allows evaluate correlation between methods nanofibrous hydrogels. While both successful, density is higher thermally samples, resulting lower conductivity swelling ratio compared E-treated samples. Moreover, H-cross-linked have better mechanical properties─lower stiffness greater tensile strength. All tested biocompatible, interestingly, P3KBT, they show photoresponsivity solar radiation generated simulator. results indicate that highly effective applied specific system depending on target, biomedical electronic applications.

Language: Английский

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Advanced nanofabrication for elastic inorganic aerogels

Nano Research, Journal Year: 2024, Volume and Issue: 17(10), P. 8842 - 8862

Published: Jan. 12, 2024

Language: Английский

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Controlled release of doxorubicin from gelatin-based nanoparticles: theoretical and experimental approach

Materials Advances, Journal Year: 2024, Volume and Issue: 5(6), P. 2347 - 2358

Published: Jan. 1, 2024

Doxorubicin (DOX), a well-known chemotherapeutic agent, is extensively used for cancer therapy.

Language: Английский

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Carbon dot/polylactic acid nanofibrous membranes for solar-mediated oil absorption/separation: Performance, environmental sustainability, ecotoxicity and reusability

Heliyon, Journal Year: 2024, Volume and Issue: 10(4), P. e25417 - e25417

Published: Feb. 1, 2024

Carbon dots (CDs) are promising photothermal nanoparticles that can be utilized in environmental treatments. They exhibit favorable physicochemical properties, including low toxicity, physical and chemical stability, photo-dependant reversible behaviour, environmentally friendly synthesis using benign building blocks. Here, we synthesized innovative CDs/polylactic acid (PLA) electrospun composite membranes for evaluating the removal of hydrophobic compounds like long-chain hydrocarbons or oils biphasic mixtures with water. The ultimate goal was to develop sustainable solar-heated oil absorbents. Specifically, fabricated PLA varying CD contents, characterized their morphology, thermal, mechanical assessed impact membrane production according ISO 14040 14044 standards a preliminary "cradle-to-gate" life cycle assessment study. Solar radiation experiments demonstrated CDs/PLA composites exhibited greater uptake compared pure membranes, ascribable CDs-induced effect. adsorption regeneration capacity new through multiple uptake/release cycles. Ecotoxicity analyses confirmed safety profile adsorbent system towards freshwater microalgae, further emphasizing its potential as an solution water treatment processes.

Language: Английский

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