Composites of Fe3O4, Ag, and Au Nanoparticles for Dye Degradation and Selective Detection of Glutathione

文献类型： 外文期刊

第一作者： Gao, Ziyuan

作者： Gao, Ziyuan;Wu, Huijuan;Liu, Zhenxi;Liu, Lizhi;Zeng, Ziqing;Du, Juan;Zheng, Baozhan;Guo, Yong;Yang, Xiaofeng;Wang, Huiyong

作者机构： Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China;Sichuan Acad Agr Sci, Inst Qual Stand & Testing Technol Agro Prod, Chengdu 610066, Peoples R China;Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

关键词： Fe3O4; Ag Au NPs; dual enzyme-likeactivities; dye degradation; biosensor; glutathione

期刊名称：ACS APPLIED NANO MATERIALS （ 2022影响因子：5.9； 五年影响因子：5.9 ）

ISSN：

年卷期： 2023 年 6 卷 13 期

页码：

收录情况： SCI

摘要： In comparison with the poor stability, high cost, anddifficultpreparation of conventional natural enzymes, nanozymes have the obviousadvantages of excellent stability, high catalytic activity, multifunctionality,and large-scale preparation. Herein, a series of Fe3O4 NPs-based magnetic composite with dual enzyme-like activities(peroxidase and oxidase) were successfully synthesized by the microwave-assistedmethod. Among them, the Fe3O4/Ag Au nanocompositeshowed the highest peroxidase-like activity due to the synergisticcatalytic effect of Ag and Au bimetallic modifications. Enzyme kineticstudies revealed good kinetic parameters of the Fe3O4/Ag Au nanocomposite for peroxidase, and it also exhibiteda higher affinity for TMB compared to natural horseradish peroxidase.In addition, a method for effective dye degradation and selectivedetection of glutathione was constructed based on its peroxidase-likeactivity. Importantly, the remarkable magnetic separation propertyand the outstanding stability proved the extensive application prospectsof the nanozymes in the remediation of water pollution and some biomarker-specificdetection.

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