Composites of Fe3O4, Ag, and Au Nanoparticles for Dye Degradation and Selective Detection of Glutathione
文献类型: 外文期刊
作者: Gao, Ziyuan 1 ; Wu, Huijuan 1 ; Liu, Zhenxi 1 ; Liu, Lizhi 1 ; Zeng, Ziqing 1 ; Yang, Xiaofeng 2 ; Wang, Huiyong 3 ; Du, Juan 1 ; Zheng, Baozhan 1 ; Guo, Yong 1 ;
作者机构: 1.Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China
2.Sichuan Acad Agr Sci, Inst Qual Stand & Testing Technol Agro Prod, Chengdu 610066, Peoples R China
3.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 ( 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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