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Characterization of Nanozyme Kinetics for Highly Sensitive Detection.

The Analyst(2024)SCI 3区

Univ Waterloo

Cited 4|Views5
Abstract
Enzymes (1) and nanozymes (2) have significant differences in the Michaelis–Menten constant. Detection of nanozymes using enzyme substrates results in lower catalytic activity and a significantly higher limit of detection.
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Nanozymes,Nanoparticle-Based Sensors,Nanostructured Materials,Non-enzymatic Sensors,Glucose Detection
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要点】:本研究通过综合研究261篇文献,发现类过氧化物酶纳米酶和辣根过氧化酶之间的麦氏常数(Km)存在显著差异,这对于高灵敏度检测中的分析方法发展至关重要。

方法】:使用了具有与辣根过氧化酶相当的Km值的金镓合金纳米酶(Au@Pt nanozyme)作为标记物,通过酶免疫检测实验探究了纳米酶底物浓度对检测灵敏度的影响。

实验】:实验结果表明,非优化的纳米酶底物浓度导致的检测限和优化条件下相比高出30倍。这说明通过测量纳米酶的动力学参数并相应调整底物浓度,对于实现高灵敏度检测是必要的。