Electrospun polymer micro/nanofibers have been widely explored as platforms for controlled delivery of therapeutic agents. Electrospun fibers are featured by large surface area, high porosity, and tunable morphology, which can be manipulated to fabricate micro/nanofibers with appropriate physicochemical properties, degradation kinetics, and drug release profiles. Many therapeutic agents can be separately or simultaneously loaded by electrospun fibers in the application of cancer therapy, adhesion prevention, wound repair, and regeneration of bone and nerve. In this review, we mainly introduce the basic principles of electrospinning, and the mechanisms and applications of electrospun micro/nanofibers for delivery of small molecule drugs, proteins, and nucleic acids in the healthcare field.
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http://dx.doi.org/10.1016/j.jconrel.2019.03.020 | DOI Listing |
Gels
December 2024
Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, 27201 Kladno, Czech Republic.
Cardiovascular disease is one of the leading causes of death and serious illness in Europe and worldwide. Conventional treatment-replacing the damaged blood vessel with an autologous graft-is not always affordable for the patient, so alternative approaches are being sought. One such approach is patient-specific tissue bioprinting, which allows for precise distribution of cells, material, and biochemical signals.
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June 2025
Technological Insitute of Sonora, Ciudad Obregon, Sonora MX-85000, Mexico.
Electrospinning can be used to prepare membranes with characteristics for biomedical application. In this work, the electrospinning conditions for the fabrication of membranes based on polymers extracted from natural sources such as chitosan and collagen were optimized (injection flow, injection volume, distance from the collector to the neddle, needle size and voltage). Specifically, four formulations were prepared with pure chitosan and mixtures of collagen (purified or hydrolyzed) and agarose.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
This study introduces a novel bilayer wound dressing that integrates a quaternized chitosan-polyacrylic acid (QCs-PAA) sponge as the top layer with electrospun nanofibers containing curcumin as the bottom layer. For the first time, QCs and PAA were combined in an 80:20 ratio through freeze-drying to form a porous sponge layer with ideal structural properties, including 83 ± 6 % porosity and pore diameters of 290 ± 12.5 μm.
View Article and Find Full Text PDFBiopolymers
March 2025
Department of Chemical and Materials Engineering, University of Alberta, Alberta, Canada.
When the kidneys are injured, uremic toxins (UTXs) accumulate in the body, affecting other tissues and causing a loss of essential body functions. This study investigated the adsorption of blood plasma-laden UTXs on the surface of PCL fibers to assess their potential as an alternative to membrane dialysis materials. Using plasma containing 26 UTXs at a concentration similar to that found in end-stage kidney disease patients, we analyzed the adsorbed proteins and examined clot formation in normal and toxin-treated plasma in the presence of PCL fibers.
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January 2025
Chemistry Department, Koc University, Sariyer, Istanbul 34450, Turkey.
Silk fibroin (SF), a natural polymer with very desirable physicochemical and biological properties, is an ideal material for crafting biocompatible scaffolds in tissue engineering. However, conventional methods for removing the sericin layer and dissolving SF often involve environmentally harmful reagents and processes, requiring extensive dialysis procedures to purify the fibers produced. Such processes may also damage the surface and bulk properties of the SF produced.
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