用于日常食品中总抗氧化能力测定的Pt/C纳米酶。

IF 5.3 2区 化学 Q1 CHEMISTRY, ANALYTICAL
Xiaoyuan Sun, Yongsheng Huang, Fengming Chen, Guofeng Gui, Shengkai Li
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引用次数: 0

摘要

提出了一种强大的氧化酶(OXD)样Pt/C纳米酶用于估计食品中的总抗氧化能力(TAC)。Vulcan XC-72碳材料作为纳米酶的载体和稳定剂,采用一锅溶剂热法合成。建立了基于Pt/C纳米酶的抗坏血酸(AA)定量比色检测平台。实验结果表明,该方法对AA的检测范围为3 ~ 50 μM,检出限为0.93 μM,与相关研究结果相当。所提出的AA比色法能够抵抗金属离子、小分子生物活性和抗氧化剂的干扰,具有较好的选择性。进一步探讨了商业饮料和果汁等日常食品中TAC的估计,结果与商业试剂盒检测方法高度一致。值得注意的是,Pt/C纳米酶的制备工艺简单,适合大规模生产,即使在长时间储存后也表现出优异的催化活性,表明其在实时TAC检测方面具有很大的潜力。这项工作不仅为合成高效纳米酶提供了可靠的策略,而且还开发了一种方便的TAC检测方法,以帮助个人做出明智的饮食选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Robust Pt/C nanozyme for total antioxidant capacity assay in daily foods

A robust oxidase (OXD)–like Pt/C nanozyme is proposed for the estimation of total antioxidant capacity (TAC) in foods. Vulcan XC–72 carbon material serves as both the support and stabilizer of the nanozyme, synthesized using a one–pot solvothermal method. A Pt/C nanozyme-based ascorbic acid (AA) quantitative colorimetric sensing platform was developed. The experimental results showed that the detection range for AA was 3–50 μM, with a detection limit of 0.93 μM, which is comparable with that of related studies. The proposed AA colorimetric could resist the interference from some metal ions, small bioactive molecules, and antioxidants, indicating its superior selectivity. The estimation of TAC in daily foods including commercial beverages and fruit juices was further explored, with results highly consistent with those obtained using the commercial kit detection method. Notably, the preparation process for Pt/C nanozyme was simple and well-suited for large-scale production, and it exhibited superior catalytic activity even after prolonged storage, indicating its substantial potential for real-time TAC detection. This work not only provided a robust strategy for synthesizing highly efficient nanozymes but also developed a convenient method for TAC detection to help individuals make informed dietary choices.

Graphical Abstract

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来源期刊
Microchimica Acta
Microchimica Acta 化学-分析化学
CiteScore
9.80
自引率
5.30%
发文量
410
审稿时长
2.7 months
期刊介绍: As a peer-reviewed journal for analytical sciences and technologies on the micro- and nanoscale, Microchimica Acta has established itself as a premier forum for truly novel approaches in chemical and biochemical analysis. Coverage includes methods and devices that provide expedient solutions to the most contemporary demands in this area. Examples are point-of-care technologies, wearable (bio)sensors, in-vivo-monitoring, micro/nanomotors and materials based on synthetic biology as well as biomedical imaging and targeting.
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