开发碳胺胺小分子纳米凝作为强大的抗微生物功能药物递送系统
Basmah Almohaywi1, Mohammed H Elkomy2,3, Mohamed A M Ali4
1Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University Abha 61421 Saudi Arabia.
RSC advances
|October 2, 2025
概括
奇托/聚乙烯罗利纳米凝有效地提供了疏水性抗微生物药物,显著提高了对MRSA等多药耐药细菌的效力. 这些生物相容的纳米凝显示出治疗具有挑战性的感染的前景.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 传染性疾病 传染性疾病
背景情况:
- 耐多药性 (MDR) 细菌感染构成了严重的全球健康威胁.
- 新型抗微生物策略对于应对MDR病原体发病率上升至关重要.
- 现有的治疗方法经常面临水药物的可溶性,稳定性和疗效方面的挑战.
研究的目的:
- 开发桑/聚乙烯罗利 (Cs/PVP) 纳米凝,用于封装疏水性抗微生物支架.
- 为了增强利二醇,利二醇和利二醇衍生物的可溶性,稳定性和抗菌疗效.
- 评估纳米凝作为药物输送系统对抗MDR细菌感染的潜力.
主要方法:
- Cs/PVP纳米凝进行了合成,并以大小,形态和稳定性进行了表征.
- 疏水性支架 (基,基,基衍生物) 被封装在纳米凝中.
- 通过最小抑制度 (MIC) 对阳性和阴性细菌的测定来评估抗菌活性.
- 进行了DNA回旋酶抑制和生物膜形成抑制试验.
- 使用人类纤维细胞细胞评估了细胞毒性.
主要成果:
- 纳米凝呈现出纳米尺寸 (35-320 nm) 的球形形态和良好的体稳定性.
- 观察到抗微生物活性显著增强,MIC值在对抗包括MRSA在内的格兰阳性细菌下降了多达64倍.
- 封装化合物显示增强的DNA旋酶抑制 (例如,TRZS-纳米凝的5.7倍改善).
- 纳米凝有效抑制了生物膜的形成 (MRSA的高达79%).
- 证明了高生物相容性,在治疗度下细胞活力>85%.
结论:
- Cs/PVP纳米凝是防水抗菌剂的有效载体,增强其效力和稳定性.
- 这些纳米凝表现出双重抗菌机制,针对浮游生物细菌和生物膜.
- 这些生物相容的纳米载体为开发针对MDR感染的新疗法提供了一个有前途的平台.
- 这种Cs/PVP纳米凝系统在对抗具有挑战性的细菌病原体方面显示出临床翻译的潜力.
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