Fabrication of hierarchical structured graphene oxide-Fe<sub>3</sub>O<sub>4</sub> hybrid nanosheets and Ag nanoparticles bimetallic composite coated silk fibers through self-assembly

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  • Song Jiangchao
    Faculty of Textile Science and Technology, Shinshu University Sericultural Research Institute, Jiangsu University of Science and Technology
  • Xu Sijun
    School of Textile and Clothing, Nantong University
  • Chen Tao
    Sericultural Research Institute, Jiangsu University of Science and Technology
  • Morikawa Hideaki
    Faculty of Textile Science and Technology, Shinshu University

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  • Fabrication of hierarchical structured graphene oxide-Fe₃O₄ hybrid nanosheets and Ag nanoparticles bimetallic composite coated silk fibers through self-assembly

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Abstract

<p>We report a facile and environmentally friendly approach to prepare hierarchical structured graphene oxide (GO)-Fe3O4 nanoparticles (NPs) hybrid nanosheets and Ag nanoparticles bimetallic composite coated silk fiber nanocomposites through hyperbranched poly(amide-amine) (HBPAA)-directed self-assembly technology. In such structure, HBPAA served as a molecular “double-sided tape” not only gluing AgNPs to the fiber surfaces but also adhering GO- Fe3O4NPs to the surfaces of HBPAA/AgNPs to form the protective layer of HBPAA/AgNPs and then improve the biosecurity and durability. The prepared silk fiber nanocomposites can be served as a small household magnet and have efficient, safe and durable antibacterial activities. These nanocomposites could be easily recycled without a decrease in their antibacterial activities due to the synergistic effects between the AgNPs and GO-Fe3O4NPs hybrid nanosheets with large amounts of active sites.</p>

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