Suppr超能文献

用于高效抗菌治疗的三元协同金属有机框架纳米酶

Triple-synergistic MOF-nanozyme for efficient antibacterial treatment.

作者信息

Wang Muxue, Zhou Xi, Li Yunhong, Dong Yuqing, Meng Jiashen, Zhang Shuai, Xia Linbo, He Zhaozhi, Ren Lei, Chen Zhiwei, Zhang Xingcai

机构信息

The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, People's Republic of China.

Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Research, School of Electronic Science and Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.

出版信息

Bioact Mater. 2022 Feb 1;17:289-299. doi: 10.1016/j.bioactmat.2022.01.036. eCollection 2022 Nov.

Abstract

The abuse of antibiotics makes bacterial infection an increasingly serious global health threat. Reactive oxygen species (ROS) are the ideal alternative antibacterial approach for quick and effective sterilization. Although various antibacterial strategies based on ROS have been developed, many of them are still limited by insufficient antibacterial efficiency. Here, we have developed an acid-enhanced dual-modal antibacterial strategy based on zeolitic imidazolate frameworks-8 (ZIF8) -derived nanozyme. ZIF8, which can release Zn, is chosen as the carrier to integrate glucose oxidase (GOx) and gold nanoparticles (Au NPs) which can produce ROS via a cascade catalytic reaction. Thus, the bactericidal capability of ROS and Zn have been integrated. More importantly, gluconic acid, a "by-product" of the catalytic reaction, can generate an acidic environment to promote both the ROS-producing and Zn-releasing, enhancing the overall antibacterial performance further. This triple-synergistic strategy exhibits extraordinary bactericidal ability at a low dosage of 4 μg/mL (for ) and 8 μg/mL (for ), which shows a great potential of MOF-derived nanozyme for efficient bacterial eradication and diverse biomedical applications.

摘要

抗生素的滥用使细菌感染成为日益严重的全球健康威胁。活性氧(ROS)是实现快速有效杀菌的理想替代抗菌方法。尽管已经开发了各种基于ROS的抗菌策略,但其中许多仍然受到抗菌效率不足的限制。在此,我们开发了一种基于沸石咪唑酯骨架-8(ZIF8)衍生的纳米酶的酸增强双模态抗菌策略。选择能够释放锌的ZIF8作为载体,整合葡萄糖氧化酶(GOx)和金纳米颗粒(Au NPs),它们可以通过级联催化反应产生活性氧。因此,活性氧和锌的杀菌能力得以整合。更重要的是,催化反应的“副产物”葡萄糖酸可以产生酸性环境,促进活性氧的产生和锌的释放,进一步增强整体抗菌性能。这种三重协同策略在低剂量4μg/mL(针对 )和8μg/mL(针对 )时表现出非凡的杀菌能力,这表明金属有机框架衍生的纳米酶在高效根除细菌和多种生物医学应用方面具有巨大潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/031d/8965166/dd606692cee8/ga1.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验