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体内创伤愈合和电纺纳米纤维膜的抗菌性能。

In vivo wound healing and antibacterial performances of electrospun nanofibre membranes.

机构信息

Centre for Material and Fibre Innovation, Deakin University, Geelong, VIC 3217, Australia.

出版信息

J Biomed Mater Res A. 2010 Aug;94(2):499-508. doi: 10.1002/jbm.a.32718.


DOI:10.1002/jbm.a.32718
PMID:20186775
Abstract

In this work, nanofibre membranes have been produced from polyvinyl alcohol (PVA), polycaprolactone (PCL), polyacrylonitrile (PAN), poly (vinylidene fluoride-co-hexafluoropropene) (PVdF-HFP), and polymer blend of PAN and polyurethane (PEU) using an electrospinning technique, and wound healing performance of the as-spun nanofibre membranes was examined in vivo using female Sprague-Dawley rats. To understand the nutrition effect, a wool protein was coated on PVA and PCL nanofibres and incorporated into PVA nanofibres via coelectrospinning of a PVA solution containing the wool protein. Silver nanoparticles were also applied to PVA nanofibres to improve antibacterial activity. It was found that the wound healing performance is mainly influenced by the porosity, air permeability, and surface wettability of the nanofibre membranes. A nanofibre membrane with good hydrophilicity and high porosity considerably facilitates the healing of wound especially at the early healing stage. However, the fiber diameter and antibacterial activity have little effect on the wound healing efficiency. As pores in nanofibre membranes are typically smaller than that of conventional cotton gauze, the nanofibre membrane should be able to decontaminate and prevent exogenous infections via sieve effect. This work provides basic understanding of material structure-property relationship for further design of efficient nanofibre-based wound dressing materials.

摘要

在这项工作中,使用静电纺丝技术从聚乙烯醇(PVA)、聚己内酯(PCL)、聚丙烯腈(PAN)、聚偏氟乙烯-六氟丙烯共聚物(PVdF-HFP)和 PAN 与聚氨酯(PEU)的聚合物共混物中制备了纳米纤维膜,并在雌性 Sprague-Dawley 大鼠体内研究了纺丝纳米纤维膜的伤口愈合性能。为了了解营养作用,将羊毛蛋白涂覆在 PVA 和 PCL 纳米纤维上,并通过共纺含有羊毛蛋白的 PVA 溶液将其掺入 PVA 纳米纤维中。还将银纳米粒子应用于 PVA 纳米纤维以提高抗菌活性。结果发现,纳米纤维膜的伤口愈合性能主要受其孔隙率、透气性和表面润湿性的影响。具有良好亲水性和高孔隙率的纳米纤维膜可极大地促进伤口愈合,特别是在早期愈合阶段。然而,纤维直径和抗菌活性对伤口愈合效率的影响很小。由于纳米纤维膜中的孔通常比传统的棉纱布小,因此纳米纤维膜应该能够通过筛网效应来消毒和防止外源性感染。这项工作为进一步设计高效的基于纳米纤维的伤口敷料材料提供了对材料结构-性能关系的基本理解。

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[2]
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[3]
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[4]
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[5]
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J Funct Biomater. 2023-9-19

[6]
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[7]
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[8]
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Sci Adv. 2023-6-9

[9]
Evaluation of poly(N-isopropylacrylamide)/tetraphenylethylene/amphotericin B-based visualized antimicrobial nanofiber wound dressing for whole skin wound healing in rats.

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[10]
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