The highly absorbent polyurethane/polylactic acid blend electrospun tissue scaffold for dermal wound dressing

In this study, novel hollow nanofiber materials were produced by the coaxial electrospinning method from polyurethane (PU)/poly(lactic acid) (PLA) blend nanofibers of different weight ratios (80:20, 60:40, 50:50, 40:60, and 20:80). Thus, the tissue scaffolds as dermal wound dressing materials which...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2023-12, Vol.80 (12), p.12787-12813
Main Authors: Samatya Yılmaz, Sema, Aytac, Ayse
Format: Article
Language:English
Subjects:
Biocompatibility
Biomedical materials
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Electrospinning
Elongation
Exudation
Fabric analysis
Fibroblasts
Mechanical properties
Nanofibers
Organic Chemistry
Original Paper
Physical Chemistry
Polyesters
Polylactic acid
Polymer Sciences
Polymers
Polyurethane resins
Scaffolds
Soft and Granular Matter
Solvents
Tensile strength
Textiles
Tissue engineering
Toxicity testing
Wound healing
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Summary:In this study, novel hollow nanofiber materials were produced by the coaxial electrospinning method from polyurethane (PU)/poly(lactic acid) (PLA) blend nanofibers of different weight ratios (80:20, 60:40, 50:50, 40:60, and 20:80). Thus, the tissue scaffolds as dermal wound dressing materials which can absorb the exudate liquid formed on the wet wound and dry quickly, providing patient comfort with high mechanical properties, showing high biocompatibility, and supporting fibroblast cell growth were developed. Moreover, the characteristics of hollow PU/PLA nanofibers were compared in detail with the characteristics of solid PU/PLA nanofibers in our previous study. Hollow PU/PLA nanofibers were observed 2–4 times thinner than solid PU/PLA nanofibers. The production of hollow nanofibers in the range of 235–518 nm was achieved. It was reported that the hollow PU/PLA (50/50, w/w) nanofiber has the highest tensile strength with a value of 7.19 MPa, and the hollow PU/PLA (60/40) w/w) nanofiber has the highest percentage elongation with a value of 63.78%. It was determined that the biomedical material, which has the highest liquid absorption capacity with a value of 756% and can dry in 10 min, is H5PU5PLA nanofiber. As a result, the highest value of fibroblast cell viability with 92.38% by cytotoxicity test was observed for hollow PU/PLA (20/80, w/w) nanofiber.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-022-04633-0