自氧化纳米热敏水凝系统与光热/光动力疗法集成,用于抗菌疗法和增强伤口愈合
Weiwei Zhang1, Xiaokuo Shen1, Hua Liu1
1School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China.
ACS applied bio materials
|September 16, 2025
概括
一个新的多功能纳米系统,MCC@ZIF-8,有效地使用光热和光动力学疗法对抗多药耐药性感染. 这种创新方法对治疗耐药细菌菌株的临床应用充满希望.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 抗菌疗法是一种抗菌疗法.
背景情况:
- 多药耐药 (MDR) 感染构成了全球重大健康挑战.
- 光疗为传统抗生素提供了一个有希望的替代方案,用于对抗耐药细菌.
研究的目的:
- 开发和评估一种自生氧多功能纳米系统,用于治疗MDR感染.
- 研究开发的纳米系统的光热和光动力学抗菌活性.
主要方法:
- 使用二硫化物纳米花,-e6,纳米氧化物和ZIF-8.8构建MoS2-Ce6-CaO2@ZIF-8 (MCC@ZIF-8)纳米系统.
- 纳米系统属性的表征,包括形态,泽塔潜力,粒子大小和光热转换效率.
- 对抗MDR大肠杆菌和黄金葡萄球菌的抗菌疗效的评估,以及基因表达变化的分析.
主要成果:
- MCC@ZIF-8纳米系统表现出六面形态,zeta电位为+38±1.1mV,粒子大小为~310nm,光热转换效率为47%.
- 达到>95%的抗菌效果对抗MDR大肠杆菌和金黄色葡萄球菌.
- 证明了参与基因切除修复,氨酸代谢和谷氨代谢的细菌基因的抑制.
- 一种水凝配方 (MCC@ZIF-8@BCβ) 增强了受感染小鼠的伤口愈合.
结论:
- 自生氧多功能纳米系统表现出显著的光热和光动力抗菌效应.
- 开发的纳米系统为治疗多抗药性细菌感染的临床应用提供了基础.
- 这种方法为传统的抗生素疗法提供了潜在的替代方案.
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