Department of Chemistry, University of Fort Hare, Alice, Eastern Cape, South Africa.
Durban University of Technology, Durban, South Africa.
J Biomater Sci Polym Ed. 2024 Oct;35(15):2380-2401. doi: 10.1080/09205063.2024.2381375. Epub 2024 Jul 22.
Burn wounds are associated with infections, drug resistance, allergic reactions, odour, bleeding, excess exudates, and scars, requiring prolonged hospital stay. It is crucial to develop wound dressings that can effectively combat allergic reactions and drug resistance, inhibit infections, and absorb excess exudates to accelerate wound healing. To overcome the above-mentioned problems associated with burn wounds, SA/PVA/PLGA/ and SA/PVA/ nanofibers incorporated with plant extract were prepared using an electrospinning technique. Fourier-transform infrared spectroscopy confirmed the successful incorporation of the extract into the nanofibers without any interaction between the extract and the polymers. The nanofibers displayed porous morphology and a rough surface suitable for cellular adhesion and proliferation. SA/PVA/PLGA/ and SA/PVA/ nanofibers demonstrated significant antibacterial effects against wound infection-associated bacterial strains: , , , , , , and . Cytocompatibility studies using HaCaT cells revealed the non-toxicity of the nanofibers. SA/PVA/PLGA/ and SA/PVA/ nanofibers exhibited hemostatic properties, resulting from the synergistic effect of the plant extract and polymers. The scratch wound healing assay showed that the SA/PVA/ nanofiber wound-healing capability is more than the plant extract and a commercially available wound dressing. The wound-healing potential of SA/PVA/ nanofiber is attributed to the synergistic effect of the phytochemicals present in the extract, their porosity, and the ECM-mimicking structure of the nanofibers. The findings suggest that the electrospun nanofibers loaded with extract are promising wound dressings that should be explored for burn wounds.
烧伤创面与感染、耐药性、过敏反应、异味、出血、渗出物过多和疤痕有关,需要长时间住院治疗。因此,开发能够有效对抗过敏反应和耐药性、抑制感染和吸收过多渗出物以加速伤口愈合的创面敷料至关重要。为了克服与烧伤创面相关的上述问题,采用静电纺丝技术制备了含有植物提取物的 SA/PVA/PLGA/和 SA/PVA/纳米纤维。傅里叶变换红外光谱证实了提取物成功地掺入到纳米纤维中,提取物与聚合物之间没有任何相互作用。纳米纤维具有多孔形态和粗糙表面,适合细胞黏附和增殖。SA/PVA/PLGA/和 SA/PVA/纳米纤维对与创面感染相关的细菌菌株(如 、 、 、 、 、 和 )具有显著的抗菌作用。使用 HaCaT 细胞进行的细胞相容性研究表明纳米纤维没有毒性。SA/PVA/PLGA/和 SA/PVA/纳米纤维具有止血性能,这是植物提取物和聚合物的协同作用的结果。划痕伤口愈合试验表明,SA/PVA/纳米纤维的伤口愈合能力强于植物提取物和市售伤口敷料。SA/PVA/纳米纤维的伤口愈合潜力归因于提取物中存在的植物化学物质、其孔隙率以及纳米纤维的 ECM 模拟结构的协同作用。这些发现表明,负载有 提取物的电纺纳米纤维是有前途的创面敷料,可用于烧伤创面。