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Graphene oxide-encapsulated Ag nanoparticle-coated silk fibers with hierarchical coaxial cable structure fabricated by the molecule-directed self-assembly.
- Source :
-
Materials Letters . Feb2017, Vol. 188, p215-219. 5p. - Publication Year :
- 2017
-
Abstract
- Herein, we designed graphene oxide (GO)-encapsulated Ag nanoparticle (AgNP)-coated silk fibers with GO serving as the protective film through hyperbranched poly(amide-amine) (HBPAA)-directed self-assembly for protecting AgNP coatings from detachment. Robust, hard, and closely fitted protective films were achieved on the fiber surfaces through self-assembled GOs by introducing 2D GO nanosheets. Silk fibers were hierarchically coated with HBPAA-capped AgNPs (HBPAA/AgNPs) and GOs by successively impregnating the fibers in solutions of HBPAA/AgNPs and GOs to design a well-defined hierarchical structure. In such structure, HBPAA served as a “double-sided tape” not only gluing AgNPs to the fiber surfaces but also adhering GOs to the surfaces of HBPAA/AgNPs. The developed coaxial cable-structured coatings could isolate Ag nanocoatings from external stimuli, opening a potential route to improve the function persistence and biosafety of AgNP-coated biotextiles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 188
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 120275891
- Full Text :
- https://doi.org/10.1016/j.matlet.2016.11.010