载有纳灵的固体脂质纳米颗粒:物理化学特性和体外抗菌活性
Federica De Gaetano1, Francesco Caridi2, Noemi Totaro1
1Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy.
Pharmaceuticals (Basel, Switzerland)
|February 26, 2025
概括
这项研究开发了载有纳灵的固体脂质纳米颗粒 (SLN),以增强对抗药性细菌的抗菌疗效. 新型NRG-SLNs与自由的naringenin相比,显示出更好的活性和生物膜抑制.
科学领域:
- 制药科学 制药科学
- 材料科学 材料科学 材料科学
- 微生物学 微生物学
背景情况:
- 抗生素耐药性需要新的治疗策略.
- 像黄酸这样的天然化合物显示出抗菌潜力,但其生物可用性较差.
- 固体脂质纳米颗粒 (SLN) 为改善药物特性提供了一个有前途的输送系统.
研究的目的:
- 为增强抗菌应用开发和表征纳金含固体脂质纳米粒子 (NRG-SLNs).
- 评估NRG-SLN对细菌病原体的生物制药性质和体外疗效.
主要方法:
- 纳林根因载荷的SLN (NRG-SLN) 通过使用Compritol® 888 ATO的溶剂乳化/扩散和超声波来制备.
- 配方的特点是尺寸,多分散性指数,泽塔潜力,封装效率和药物含量.
- 使用μ-拉曼光谱,DSC,TGA和XRD分析了药物脂质相互作用.
- 在体外抗菌和抗菌膜活动对黄金葡萄球菌 (包括MRSA) 和大肠杆菌进行了评估.
主要成果:
- 最佳的NRG-SLNs配方表现出均的大小 (~50 nm),负泽塔电位 (-30 mV),高封装效率 (~98%) 和良好的物理稳定性.
- NRG-SLNs在10天内显示持续的药物释放.
- NRG-SLNs对S. aureus (MRSA) 和大肠杆菌表现出显著的细菌静止活性,其表现优于自由的naringenin.
- 观察到增强的抗菌和抗菌膜活性,可能是由于SLN-细菌表面相互作用.
结论:
- 载有纳灵的固体脂质纳米颗粒是克服自由纳灵的局限性的有效策略.
- NRG-SLNs显示出改善的抗菌和抗菌膜特性,为抗耐药细菌感染提供了潜在的新疗法选择.
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