互补协同的Fe-Ce双金属纳米酶通过模块间循环催化增强了抗菌疗效
Suyu Jiang1, Xuemei Sun1, Rong-Mei Kong1
1Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, PR China.
Colloids and surfaces. B, Biointerfaces
|August 17, 2025
概括
这项研究引入了一种新型双金属铁/催化剂 (Fe/Ce-BTC),通过破坏细菌代谢来增强抗菌疗效. 这种双酶模仿系统提供了一种对抗抗生素耐药性的有希望的策略.
科学领域:
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
- 抗菌研究 抗菌研究
背景情况:
- 调节细菌的氧化还原代谢是改善抗微生物治疗和打击抗生素耐药性的关键.
- 单金属离子具有有限的氧化还原调制能力,可能加速电阻.
- 双金属催化剂为增强的抗微生物应用提供了协同效应的优势.
研究的目的:
- 开发和评估一种双金属铁/ (Fe/Ce) 双酶模仿催化模块 (Fe/Ce-BTC),用于增强抗菌活性.
- 研究铁和在破坏细菌新陈代谢和克服耐药性的协同作用.
- 探索Fe/Ce-BTC作为一种针对细菌病原体的新策略的潜力.
主要方法:
- 构建双金属Fe/Ce系统作为双酶模拟催化模块 (Fe/Ce-BTC).
- 使用铁来启动芬顿反应以产生基基.
- 使用在Ce3+和Ce4+状态之间进行持续的氧化还原转换.
主要成果:
- 由于铁和的互补作用,Fe/Ce-BTC系统表现出增强的催化活性和稳定性.
- 集成的催化剂在多个层面上有效地破坏了细菌代谢网络.
- 该系统对各种细菌病原体表现出强大的抑制作用,克服了补偿机制.
结论:
- 像Fe/Ce-BTC这样的双金属催化剂在扩大抗菌干预方面显示出显著的潜力.
- 这种方法提供了一个变革性的战略,以应对抗生素耐药性的挑战.
- Fe/Ce-BTC系统有望改善治疗细菌感染的临床结果.
更多相关视频
12:03Antimicrobial Synergy Testing by the Inkjet Printer-assisted Automated Checkerboard Array and the Manual Time-kill Method
Published on: April 18, 2019
26.5K
11:19Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties
Published on: May 10, 2018
10.3K
相关概念视频
Combined Effects of Drugs: Synergism
4.7K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
4.7K
Antimicrobial Effectiveness
157
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
157
Catalytically Perfect Enzymes
4.1K
The theory of catalytically perfect enzymes was first proposed by W.J. Albery and J. R. Knowles in 1976. These enzymes catalyze biochemical reactions at high-speed. Their catalytic efficiency values range from 108-109 M-1s-1. These enzymes are also called 'diffusion-controlled' as the only rate-limiting step in the catalysis is that of the substrate diffusion into the active site. Examples include triose phosphate isomerase, fumarase, and superoxide dismutase.
Most enzymes...
Most enzymes...
4.1K
Antimicrobial Proteins
5.2K
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
5.2K
