A versatile biocatalytic nano-platform based on Fe3O4-filled and zirconia shrunk holey carbon nanotubes

文献类型： 外文期刊

第一作者： Shi, Jie

作者： Shi, Jie;Zheng, Lei;Zhang, Shan;Deng, Qianchun;Li, Ya;Shi, Jie;Tang, Bo;Geng, Zhigang

作者机构：

关键词： Holey carbon nanotubes; Stable magnetism; Recyclability; Enzyme nanoreactor; Nano-biosensor

期刊名称：CHEMICAL ENGINEERING JOURNAL （ 影响因子：13.273； 五年影响因子：11.529 ）

ISSN： 1385-8947

年卷期： 2020 年 402 卷

页码：

收录情况： SCI

摘要： The creation of biocatalytic nano-platform with high performance is the focus of attention in the field of enzyme catalysis. However, most enzyme nanoreactors suffer from poor versatility and recovery ability. Herein, we construct a versatile biocatalytic nano-platform with steady magnetic recyclability through hybrid magnetic carbon nanotubes (named by h-CNT/Fe3O4/ZrO2), realize the role of biocatalyst by the covalent attachment of lipase. On the other side, glucose oxidase (GOx) was immobilized on the h-CNT/Fe3O4/ZrO2 to prepare dual enzyme system (GOx@h-CNT/Fe3O4/ZrO2) for glucose detecting via colorimetric assay, this is its role as biosensor. In order to build an amphiphilic nano-bio interface, hydroxyl contained carbon nanotubes were selected as the substrate material of nano-platform. We punch lots of mesopores on the tube wall and inject Fe3O4 nanoparticles into inner nanotubes via these openings, then shrunk mesoporous by zirconia to maintain the magnetic recyclability. We believed such an architecture that can not only offer the comfortable bio-nano interfaces for enzyme but also effectively avoid the loss of magnetism thus brings constant recyclability.

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