具有相互促进的化学动力学-光动力学活动的工程细菌体尾酒,用于有针对性和协同的生物膜清除
Jing Zhang1, Ling-Hong Xiong2, Ben Zhong Tang3,4
1State Key Laboratory of Bioinspired Interfacial Materials Science, The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
ACS nano
|February 10, 2026
概括
一种新型的菌体尾酒结合了化学动力学疗法 (CDT) 和光动力学疗法 (PDT) 以有效地根除金黄色葡萄球菌生物膜. 这种方法显著提高了治疗慢性感染的杀菌效率.
科学领域:
- 生物技术是生物技术.
- 抗菌疗法是一种抗菌疗法.
- 纳米医学是一种纳米医学.
背景情况:
- 细菌生物膜有助于持续性感染和抗菌素耐药性.
- 目前对生物膜感染的治疗方法通常有效性有限.
研究的目的:
- 开发一种菌体尾酒,用于根除金黄色葡萄球菌生物膜.
- 将化学动力学疗法 (CDT) 和光动力学疗法 (PDT) 结合起来,以增强抗菌活性.
主要方法:
- 将聚合诱导的排放光敏感剂 (AIE PSs),葡萄糖氧化酶 (GOx) 和胡卜过氧化酶 (HRP) 结合到菌体表面上.
- 利用菌体的特异性将治疗剂输送到生物膜中.
- 采用AIE PSs进行病原体标记和杀死,通过单点氧气生成.
- 利用GOx/HRP进行级联催化,从葡萄糖中产生基.
主要成果:
- 与单个疗法相比,菌体-CDT/PDT联合疗法显著提高了杀菌效率 (>468%用于CDT,>290%用于PDT).
- AIE PSs表现出强化的光,用于病原体的可视化和破坏.
- 由于生物膜微环境中的光敏剂和酶的局部化,观察到协同效应的增强.
结论:
- 开发的菌体尾酒为对抗生物膜相关感染提供了有效的策略.
- 这种方法对治疗由黄金葡萄球菌生物膜引起的临床超级细菌感染有希望.
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