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黑/MnO₂纳米复合物破坏细菌耐热性,用于高效的温和温度光热疗法

Feng Wang¹, Qinghe Wu¹, Guoping Jia¹

¹Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|September 12, 2023

概括

这项研究介绍了BP@Mn-NC,一种纳米复合材料,使用轻度光热疗法 (PTT) 来对抗多药耐药 (MDR) 病原体. 它产生反应性氧物种 (ROS) 来破坏细菌膜并损害热冲击蛋白 (HSPs),克服热耐受性.

科学领域:

生物技术是生物技术.
材料科学材料科学材料科学
传染性疾病传染性疾病

背景情况:

多药耐药 (MDR) 病原体对全球健康和经济构成重大挑战.
光热疗法 (PTT) 提供了一种安全的,节约抗生素的替代方案,但细菌耐热性限制了其有效性.
温和的PTT疗效受到细菌热冲击蛋白 (HSP) 的阻碍,这些蛋白质依赖于三氨酸腺酸盐 (ATP).

研究的目的:

开发一种新的纳米复合材料,BP@Mn-NC,用于增强对MDR病原体的轻度PTT.
研究BP@Mn-NC.的协同光热和催化性能.
通过ROS介导的ATP耗尽来探索一种针对细菌耐热性的新策略.

主要方法:

一个黑色纳米板和基于的纳米酶 (Mn-NZ) 纳米复合物的合成 (BP@Mn-NC).
评估BP@Mn-NC的光热和催化活动,包括ROS产生.
评估BP@Mn-NC介导的轻微PTT对MDR病原体的疗效,重点关注细菌膜完整性,ATP水平和HSP功能.

主要成果:

BP@Mn-NC具有光热和催化性能,产生ROS.
ROS的诱导导致脂质过氧化,积,并破坏细菌细胞膜.
轻度PTT与BP@Mn-NC有效减少细胞内ATP,损害细菌HSP,并消除MDR感染.

结论:

BP@Mn-NC是一种有前途的治疗药物,用于使用轻度PTT对抗MDR感染.
该策略有效地针对细菌耐热性,通过通过ROS介导的机制抑制依赖ATP的HSP.
这种方法为开发针对耐药病原体的先进抗微生物策略提供了一条新的途径.

关键词:

耐药细菌是耐药的细菌.热冲击蛋白质是一种热冲击蛋白质.光热疗法是一种光热疗法.呼吸链复杂的呼吸系统.自己级联的纳米酶.

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