装有生物活性的多功能素纳米环,用于潜在的伤口愈合应用
Edwin Davidson1,2, Jorge Pereira1,2, Giuliana Gan Giannelli2,3
1Department of Chemistry, University of Central Florida, Orlando, FL 32826, USA.
Molecules (Basel, Switzerland)
|August 26, 2023
概括
含的奇托桑纳米微粒 (Chi-Mn) 通过表现出抗氧化和抗菌性质,显示出慢性伤口愈合的前景. 这种新材料与抗生素兼容,并显示出生物相容性,为增强伤口治疗提供了一种新工具.
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:
- 慢性皮肤伤口存在严重的感染风险,特别是抗生素耐药的细菌.
- 需要有效的治疗方法来补充传统的抗生素,以改善伤口愈合.
- 纳米级材料在治疗复杂的伤口方面提供了新的治疗方法的潜力.
研究的目的:
- 调查多功能纳米级酸盐囊泡载 (Chi-Mn) 作为皮肤伤口愈合的辅助疗法的潜力.
- 评估Chi-Mn.的抗氧化,抗微生物和生物相容性特性.
- 在伤口愈合模型中评估Chi-Mn的疗效和安全性.
主要方法:
- 含的奇托桑纳米微粒 (Chi-Mn) 的合成和表征.
- 对*大肠杆菌*和*P. aeruginosa*的抗氧化活性和抗菌疗效的评估 PA01.01.
- 在体外细胞毒性测定使用巨细胞和皮肤细胞系 (J774A.1,HDF).
- 细胞迁移试验 (伤试验) 和共聚焦显微镜评估对人类皮肤纤维细胞 (HDF) 的影响.
主要成果:
- -Mn表现出时间依赖的抗氧化活性和对测试的细菌菌株的抗菌作用.
- 在低度的Chi-Mn (0.04μg Mn/cm2) 观察到有效的细菌生长抑制.
- -Mn在广泛的度范围 (2-256 ppm) 中与巨细胞和HDF细胞表现出极好的生物相容性.
- 在16ppm的最小抑制度 (MIC) 时,没有观察到对HDF细胞迁移的不良影响.
结论:
- -Mn纳米微粒具有显著的抗氧化和抗微生物特性,有利于伤口愈合.
- 该材料具有生物相容性,并且不会阻碍细胞迁移等关键细胞过程.
- -Mn与常规抗生素的兼容性,表明其作为慢性皮肤伤口的辅助治疗的潜力.
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