金纳米酶的活性提升策略:基于聚合物、MOF和蛋白质的表面修饰方法

Strategies for enhancing the activity of gold nanoparticle nanozymes: surface engineering based on polymers, MOF, and proteins

  • 摘要: 针对金纳米颗粒(AuNPs)纳米酶催化效率低、易团聚等问题,本文系统综述了三种主要的表面修饰方法:聚合物修饰、金属有机框架(MOF)负载和蛋白质保护。聚合物修饰策略通过调控局部微环境实现催化活性的精细调控并赋予材料刺激响应性;MOF负载策略利用高比表面积和电子协同效应显著提升纳米酶活性,并易于分离回收;蛋白质保护策略利用生物大分子的天然优势,通过蛋白冠显著增强催化选择性和底物特异性,模拟天然酶的微环境。本文详细阐述每种策略的原理和应用,可为推动AuNPs纳米酶的理性设计和实际应用提供理论指导。

     

    Abstract: The practical applications of gold nanoparticles (AuNPs) nanozymes are restricted by their relatively low catalytic efficiency and poor stability. Three major strategies are systematically reviewed: polymer modification, metal-organic framework (MOF) loading, and protein protection. Polymer modification introduces functional polymer chains to modulate the local microenvironment, achieving fine-tuning of catalytic activity and stimulus-responsiveness. MOF loading strategies leverage the high surface area and synergistic electronic effects of MOF to significantly enhance enzyme-like activity and enable easy recovery. Protein protection strategies utilize the natural advantages of biomacromolecules, using the protein corona to significantly enhance catalytic selectivity and substrate specificity, mimicking the sophisticated microenvironment of natural enzymes. This review elaborates on the design principles and applications of each strategy, providing theoretical guidance for the rational design and practical application of AuNPs nanozymes.

     

/

返回文章
返回