抗微生物核心外纳米纤维伤口包裹用氨基醇-脂质体
Laura Victoria Schulte-Werning1, Ivo Laidmäe2, Lisa Myrseth Hemmingsen3
1Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway.
概括
新的核心外纳米纤维结合了β-glucan,chitosan和pectin,用于慢性伤口治疗. 这些敷料提供了增强的稳定性,持续的氨基醇 (CAM) 药物释放和抗菌活性,为临床评估铺平了道路.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 慢性伤口是一个日益增长的全球健康挑战,需要先进的伤口包裹解决方案.
- 基于纳米纤维的带显示出改善伤口管理的巨大潜力.
- 结合多种生物聚合物和可控制的药物输送系统,可以提高敷料的有效性.
研究的目的:
- 开发新的核心纳米纤维,其中包括β-glucan (βG),chitosan (CHI),pectin和脂质体捕获的氨基醇 (CAM).
- 研究这些复杂配方的同轴电制造方面的制造挑战和解决方案.
- 评估用于慢性伤口治疗的开发的纳米纤维的物理化学特性,药物释放动力学和抗菌活性.
主要方法:
- 同轴电被用来创建核心纳米纤维,其中包含一个pectin/CAM-liposome核心和一个βG/CHI外.
- 通过优化溶液pH值来解决电旋转中的挑战,例如凝堵塞.
- 扫描电子显微镜 (SEM) 和传输电子显微镜 (TEM) 用于形态表征.
- 评估了拉伸强度,在模拟伤口液体中的稳定性,以及氨基醇释放概况.
- 对大肠杆菌和金黄色葡萄球菌的抗菌活性进行了测试.
主要成果:
- 成功制造了核心外纳米纤维 (Coax-LipCAM),平均直径约为200nm.
- 通过降低含有pectin的核心溶液的pH值,克服了电的挑战.
- 与对照纳米纤维相比,Coax-LipCAM在模拟的伤口液体中表现出优越的抗拉强度和稳定性.
- 证明了CAM的持续释放,其中80%在八小时内释放.
- 纳米纤维显示了与免费CAM对测试的细菌菌株相比较的抗菌活性.
结论:
- 核心外纳米纤维结合CAM装载脂质体在一个pectin核心和βG/CHI外成功制造.
- 开发的纳米纤维具有有利的形态,机械,稳定性和膨胀性质.
- 持续的药物释放和保存的抗微生物活性使这些纳米纤维成为慢性伤口管理的有希望的.
- 建议对治疗慢性伤口的治疗潜力进行进一步的临床评估.
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