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聚己内酯/壳聚糖电纺垫在聚氨酯/蜂胶泡沫上的体外和体内研究作为双层伤口敷料。

An in vitro and in vivo study of PCL/chitosan electrospun mat on polyurethane/propolis foam as a bilayer wound dressing.

机构信息

Biomaterials, Nanotechnology, and Tissue Engineering Group, Advanced Medical Technology Department, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran.

Department of Oncology, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran.

出版信息

Mater Sci Eng C Mater Biol Appl. 2022 Apr;135:112667. doi: 10.1016/j.msec.2022.112667. Epub 2022 Jan 19.

Abstract

In the current study, we fabricated a bilayer wound dressing consisting of an electrospun poly-ε-caprolactone/chitosan (PCL/CS) fibrous mat as the sublayer and a polyurethane (PU) foam coated with ethanolic extract of propolis (EEP) as the top layer. By blending the solutions of PCL and CS, we fabricated an electrospun mat consisting of bead-free and uniform nanofibers with enhanced hydrophilicity, swelling ratio, and degradation properties. To further enhance the mechanical and antibacterial properties, we electrospun the PCL/CS solution on a PU foam coated with EEP to fabricate the PCL/CS-PU/EEP bilayer wound dressing. Furthermore, the PCL/CS-PU/EEP bilayer wound dressing demonstrated enhanced cell compatibility and healing properties through in vitro and in vivo studies. Therefore, the PCL/CS-PU/EEP bilayer wound dressing offers great potential to be used as a wound dressing because of its suitable mechanical properties, swelling profile, antibacterial activity, biocompatibility, and wound healing properties.

摘要

在本研究中,我们制备了一种由静电纺丝聚己内酯/壳聚糖(PCL/CS)纤维垫作为下层和涂有蜂胶乙醇提取物(EEP)的聚氨酯(PU)泡沫作为上层组成的双层伤口敷料。通过混合 PCL 和 CS 的溶液,我们制备了一种由无珠且均匀的纳米纤维组成的静电纺丝垫,其具有增强的亲水性、溶胀比和降解性能。为了进一步提高机械性能和抗菌性能,我们将 PCL/CS 溶液静电纺丝在涂有 EEP 的 PU 泡沫上,制备了 PCL/CS-PU/EEP 双层伤口敷料。此外,通过体外和体内研究,PCL/CS-PU/EEP 双层伤口敷料表现出增强的细胞相容性和愈合性能。因此,由于其合适的机械性能、溶胀特性、抗菌活性、生物相容性和伤口愈合性能,PCL/CS-PU/EEP 双层伤口敷料具有作为伤口敷料的巨大潜力。

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