同N4协调的单原子纳米酶具有双重杀菌再生功能:通过自我增强的氧化酶模仿催化剂克服四环素耐药性
Tibebu Tsegaye Zigale1,2, Rui Huang1, Li Wang1
1School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China.
ACS applied materials & interfaces
|January 6, 2026
概括
一种新型的单原子纳米酶Co-N-C有效地消灭了耐抗生素的细菌,并通过释放活性氧物种 (ROS) 来促进伤口愈合. 这为传统抗生素提供了有希望的替代品,延迟了耐药性的发展.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 传染病研究 传染病研究
背景情况:
- 抗生素治疗是伤口愈合的标准,但有助于抗生素耐药性.
- 开发新的抗微生物策略对于对抗耐药细菌感染至关重要.
研究的目的:
- 合成和评估一种--碳单原子纳米酶 (Co-N-C),作为治疗伤口的抗生素替代品.
- 研究Co-N-C的抗菌机制和伤口愈合能力.
主要方法:
- 合成具有氧化酶模仿性质的Co-N-C单原子纳米酶.
- 在实验室对四种抗四环素的细菌菌株进行了评估.
- 在临床前模型中进行体内伤口愈合评估.
- 细菌损伤机制和耐药性发展的分析.
主要成果:
- Co-N-C 实现了 >99% 的测试耐药细菌的根除.
- 归因于活性氧物种 (ROS) 释放的杀菌作用.
- 与对照组不同的是,Co-N-C治疗的伤口在第10天显示出完全的重新上皮质化.
- Co-N-C 显示出抑制细菌和延迟耐药性发展的潜力.
结论:
- 单原子Co-N-C纳米酶对抗性菌株表现出强大的抗菌活性.
- Co-N-C 有效地促进伤口愈合和组织再生.
- 这种纳米酶为伤口管理和抗菌药物应用提供了一个有希望的替代方案,有可能减轻抗生素耐药性.
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