Electrospun Green Fluorescent-Highly Anisotropic Conductive Janus-Type Nanoribbon Hydrogel Array Film for Multiple Stimulus Response Sensors

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 288, P. 111933 - 111933

Published: Nov. 2, 2024

Language: Английский

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Bridging a Gap in Thermal Conductivity and Heat Transfer in Hybrid Fibers and Yarns via Polyimide and Silicon Nitride Composites

Small, Journal Year: 2023, Volume and Issue: 19(52)

Published: Aug. 8, 2023

The pressing issues of the energy crisis and rapid electronics development have sparked a growing interest in production highly thermally conductive polymer composites. Due to challenges related poor processability hybrid materials filler distribution achieve high thermal conductivity, electrospinning is employed create composite nanofibers yarns using polyimide (PI) silicon nitride (SiN) nanoparticles. performance individual evaluated scanning microscopy (SThM), providing significant insights into their heat transfer performance. Next, are applied as coatings on resistance wires assess conductivity insulation properties. Notably, samples containing 35 wt.% SiN exhibit 25% increase surface temperature. These innovative hold great promise exceptional candidates for smart textiles management applications, addressing demand effective dissipation regulation.

Language: Английский

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Applications of co-axial electrospinning in the biomedical field

Next Materials, Journal Year: 2024, Volume and Issue: 3, P. 100138 - 100138

Published: March 28, 2024

Nanofibers are the center of researcher's attention due to their applications in industrial, technological, and scientific fields. fabricated via a famous technique known as electrospinning. But through single-nozzle electrospinning, we cannot use all precursor solutions, desired geometry fibers is also prevented. To overcome limitations an advanced version electrospinning has been introduced which termed co-axial This review will describe processes well advancements made empower formation uniform with enhanced characteristics. can be used fabricate functional hollow from non-spinnable precursors. One common drawback that observed degradability drugs avoided by The comparison conventional established supported up-to-date literature. services several fields have summarized but more emphasis on biomedical field. Their major wound dressing, periodontal regeneration, nerve tissue engineering, bone double drug delivery, cancer treatment reported. Future recommendations for potential researchers design effective sustainable methodology development core-sheath nanofibers.

Language: Английский

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Stepwise degradable PGA-SF core-shell electrospinning scaffold with superior tenacity in wetting regime for promoting bone regeneration

Materials Today Bio, Journal Year: 2024, Volume and Issue: 26, P. 101023 - 101023

Published: March 12, 2024

Regenerating bone in the oral and maxillofacial region is clinically challenging due to complicated osteogenic environment limitation of existing graft materials. Constructing materials with controlled degradation stable mechanical properties a physiological utmost importance. In this study, we used silk fibroin (SF) polyglycolic acid (PGA) fabricate coaxial PGA-SF fibrous scaffold (PGA-SF-FS) meet demands for grafts. The outer SF exerted excellent activity while protecting PGA from rapid inner equipped tenacity. experiments related biocompatibility osteogenesis (e.g., cell attachment, proliferation, differentiation, mineralization) demonstrated superior ability PGA-SF-FS improve growth differentiation. Furthermore, vivo testing using Sprague-Dawley rat cranial defect model showed that accelerates regeneration as implantation time increases, its stepwise helps match remodeling kinetics host tissue. Besides, immunohistochemical staining CD31 Col-1 confirmed enhance revascularization response. Our results suggest fully utilizing advantages both components, exhibites tenacity wetting regime, making it promising candidate treatment defects.

Language: Английский

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Cell–Material Interplay in Focal Adhesion Points

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(8), P. 9944 - 9955

Published: Feb. 14, 2024

The complex interplay between cells and materials is a key focus of this research, aiming to develop optimal scaffolds for regenerative medicine. need tissue regeneration underscores understanding cellular behavior on scaffolds, especially cell adhesion polymer fibers forming focal adhesions. Key proteins, paxillin vinculin, regulate signaling, migration, mechanotransduction in response the extracellular environment. This study utilizes advanced microscopy, specifically AiryScan technique, along with image analysis employing Density-Based Spatial Clustering Applications Noise (DBSCAN) cluster algorithm, investigate protein distribution during osteoblast glass substrates. During attachment both fibers, noticeable shift local maxima vinculin signals observed at sites. sites are smaller elliptical but exhibit higher density than typical surface. characteristics adhesions, influenced by such as size density, can potentially reflect strength stability adhesion. Efficient correlates well-organized, larger adhesions characterized increased accumulation vinculin. These findings offer promising implications enhancing scaffold design, evaluating various substrates, refining interactions biomedical applications.

Language: Английский

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Electrospun nanofibrous membranes meet antibacterial nanomaterials: From preparation strategies to biomedical applications

Bioactive Materials, Journal Year: 2024, Volume and Issue: 42, P. 478 - 518

Published: Sept. 11, 2024

Language: Английский

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Interfacial blending in co-axially electrospun polymer core-shell fibers and their interaction with cells via focal adhesion point analysis

Colloids and Surfaces B Biointerfaces, Journal Year: 2024, Volume and Issue: 237, P. 113864 - 113864

Published: March 20, 2024

Language: Английский

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Unraveling the Impact of Boron Nitride and Silicon Nitride Nanoparticles on Thermoplastic Polyurethane Fibers and Mats for Advanced Heat Management

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(31), P. 41475 - 41486

Published: July 10, 2024

The urgent challenges posed by the energy crisis, alongside heat dissipation of advanced electronics, have embarked on a rising demand for development highly thermally conductive polymer composites. Electrospun composite mats, known their flexibility, permeability, high concentration and orientational degree fillers, stand out as one prime candidates addressing this need. This study explores efficacy boron nitride (BN) its potential alternative, silicon (SiN) nanoparticles, in enhancing thermal performance electrospun thermoplastic polyurethane (TPU) fibers mats. 3D reconstructed models obtained from FIB-SEM imaging provided valuable insights into morphology fibers, aiding interpretation measured through scanning microscopy individual infrared thermography Notably, we found that TPU-SiN exhibit superior conduction compared to TPU-BN with up 6 °C higher surface temperature observed mats coated copper pipes. Our results underscore crucial role arrangement nanoparticles fiber improving Moreover, SiN are introduced more suitable filler enhancement TPU suggesting immense smart textiles management applications.

Language: Английский

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Enhanced Thermal Management of Mats and Yarns from Polystyrene Fibers Through Incorporation of Exfoliated Graphite

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

Published: Jan. 1, 2025

The incorporation of thermally conductive exfoliated graphite into polystyrene fibers significantly enhances their thermal conductivity. This modification in the yarn structure optimizes management by enabling effective heat transfer.

Language: Английский

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Antimicrobial Composites Based on Methacrylic Acid–Methyl Methacrylate Electrospun Fibers Stabilized with Copper(II)

Molecules, Journal Year: 2024, Volume and Issue: 29(12), P. 2835 - 2835

Published: June 14, 2024

This study presents fibers based on methacrylic acid–methyl methacrylate (Eudragit L100) as Cu(II) adsorbents, resulting in antimicrobial complexes. Eudragit L100, an anionic copolymer synthesized by radical polymerization, was electrospun dimethylformamide (DMF) and ethanol (EtOH). The electrospinning process optimized through a 22-factorial design, with independent variables (copolymer concentration EtOH/DMF volume ratio) three repetitions at the central point. smallest average fiber diameter (259 ± 53 nm) obtained 14% w/v L100 80/20 ratio. were characterized using scanning electron microscopy (SEM), infrared spectroscopy attenuated total reflectance mode (FTIR-ATR), differential calorimetry (DSC). pseudo-second-order mechanism explained kinetic adsorption toward Cu(II). exhibited maximum capacity (qe) of 43.70 mg/g. DSC analysis confirmed absorption, indicating complexation between metallic ions networks. complexed showed lower degree swelling than non-complexed fibers. bacteriostatic activity against Gram-negative (Pseudomonas aeruginosa) Gram-positive (Staphylococcus aureus) bacteria. successfully to produce thin for potential applications adsorbents aqueous media controlling bacterial growth.

Language: Английский

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