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The skin is the body's primary immune barrier, defending it against pathogenic invasion. Skin injuries impose a significant physiological burden on patients, making effective wound management essential. Dressings are commonly employed in wound care, and electrospun nanofiber dressings are a research hotspot owing to their ease of fabrication, cost-effectiveness, and structural similarity to the extracellular matrix. Coaxial electrospinning offers considerable advantages in drug delivery, fiber structure transformation, and enhanced interaction with the host. These attributes make coaxial electrospun materials promising candidates for precision and personalized wound dressings in medical treatments. This review provides a comprehensive overview of wound healing and its influencing factors. It also outlines coaxial electrospinning's production principles and benefits in wound dressings. Guided by the factors affecting wound healing, coaxial electrospun nanofiber dressings have different application modalities. Furthermore, we discuss the current limitations and future directions for enhancing the current coaxial electrospun dressing technologies.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11570975 | PMC |
http://dx.doi.org/10.1016/j.mtbio.2024.101309 | DOI Listing |
Polymers (Basel)
December 2024
School of Chemical Engineering, Pusan National University, Busan 46241, Republic of Korea.
In this study, a transient viscosity adjustment method using a coaxial nozzle was explored to fabricate nanofibers from non-spinnable -poly(hydroxyamide) (-PHA). Unlike conventional electrospinning methods that often require additives to induce fiber formation, this approach relies on a sheath-core configuration, introducing tetrahydrofuran (THF) to the sheath to temporarily adjust solution viscosity. The diffusion of THF into the core -PHA solution resulted in momentary solidification at the interface, promoting nanofiber formation without compromising polymer solubility.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Electrical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.
Biological macromolecules such as polysaccharides and proteins, due to their excellent biocompatibility and biodegradability, are ideal for promoting Skin Tissue Engineering (STE) both in vitro and in vivo. In this study, a core-shell electrospun scaffold was fabricated using the coaxial electrospinning method, with Polyurethane (PU) forming the shell and a mixture of Starch (ST), Propolis Extract (PE), and Hyaluronic Acid (HA) forming the core. The scaffold's morphology was characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM), confirming the successful formation of a well-defined core-shell structure.
View Article and Find Full Text PDFAdv Healthc Mater
November 2024
Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China.
Tendon injuries often exhibit limited healing capacity, frequently complicated by peritendinous adhesion, posing a substantial challenge in clinical tendon repair. Although present biomaterial-based membranes offer a promising strategy for tendon treatment, their clinical application is hindered by inflammation-induced adhesion. Herein, this study presents a dual-functional biomimetic tendon sheath based on a coaxial electrospun nanofibrous membrane for enhancing tendon repair and simultaneously preventing peritendinous adhesion.
View Article and Find Full Text PDFMolecules
November 2024
School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Electrospinning technology has demonstrated extensive applications in biomedical engineering, energy storage, and environmental remediation. However, its utilization in the cosmetic industry remains relatively underexplored. To address the challenges associated with skin damage caused by preservatives and thickeners used for extending the shelf life of conventional products, a soothing lavender-scented electrospun fibrous eye mask with coaxial layers was developed using the electrospinning technique.
View Article and Find Full Text PDFMolecules
November 2024
Packaging Laboratory, Institute of Agrochemistry and Food Technology (IATA-CSIC), 46980 Valencia, Spain.
The high accumulation of plastic waste in the environment has led to great interest in biodegradable polymers, such as polylactic acid (PLA) or polyhydroxyalkanoates (PHAs). Their benefits, combined with the application of electrospinning technology, represent an innovative proposal for the food packaging industry. This article provides a comprehensive review of the latest developments of PLA- and PHA-biopolyester-based electrospun materials for food packaging applications, summarizing the reported technologies, material properties, applications, and invention patents.
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