金纳米颗粒@金属有机框架复合物纳米酶及其生物传感和抗肿瘤应用研究进展

Research progress on the applications of gold nanoparticles@metal-organic framework composite nanozymes in biosensing and antitumor

  • 摘要: 基于金属有机框架(MOFs)材料的纳米酶是一种非天然酶,具有可调的孔隙率、极高的比表面积、易修饰的表面及模拟酶的催化性能等特点。而金纳米颗粒(AuNPs)修饰的MOFs(AuNPs@MOFs)复合物亦是MOFs基质纳米酶的重要种类之一,且AuNPs具有局部表面等离子体共振效应,可扩展AuNPs@MOFs复合物纳米酶的表面增强拉曼散射(SERS)特性并提升SERS信号强度,因此,AuNPs@MOFs复合物纳米酶近年来引起了研究者的重点关注。本综述主要概述了AuNPs@MOFs复合物纳米酶的合成制备方法,探讨了它们的三种类酶(类过氧化物酶、类氧化酶和类过氧化氢酶)的催化活性机制,介绍了目前这种复合物纳米酶在生物传感和抗肿瘤应用领域的研究进展,还进一步展望了AuNPs@MOFs复合物纳米酶的未来发展趋势。

     

    Abstract: Nanozymes derived from metal-organic frameworks (MOFs) are synthetic enzymes with adjustable porosity, high specific surface area, modifiable surfaces, and catalytic properties that emulate natural enzymes. Gold nanoparticle (AuNPs) modified MOFs (AuNPs@MOFs composites) form a significant category of MOF-based nanozymes. Importantly, the localized surface plasmon resonance effects of AuNPs enhance the nanozymes properties of AuNPs@MOFs composites and expand their application potential, which have garnered substantial research attention in recent years. This review focuses on the summarizing of the synthetic protocols of AuNPs@MOFs composites, their enzyme-like activities (such as peroxidase-like, oxidase-like and catalase-like), their advancements in bio-sensing and anticancer, and discussing their future prospects.

     

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