Tunable magnetic nanowires for biomedical and harsh environment applications
AuthorsIvanov, Yurii P.
Al-Nassar, Mohammed Y.
Perez, Jose E.
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Biological and Environmental Sciences and Engineering (BESE) Division
MetadataShow full item record
AbstractWe have synthesized nanowires with an iron core and an iron oxide (magnetite) shell by a facile low-cost fabrication process. The magnetic properties of the nanowires can be tuned by changing shell thicknesses to yield remarkable new properties and multi-functionality. A multi-domain state at remanence can be obtained, which is an attractive feature for biomedical applications, where a low remanence is desirable. The nanowires can also be encoded with different remanence values. Notably, the oxidation process of single-crystal iron nanowires halts at a shell thickness of 10 nm. The oxide shell of these nanowires acts as a passivation layer, retaining the magnetic properties of the iron core even during high-temperature operations. This property renders these core-shell nanowires attractive materials for application to harsh environments. A cell viability study reveals a high degree of biocompatibility of the core-shell nanowires.
CitationTunable magnetic nanowires for biomedical and harsh environment applications 2016, 6:24189 Scientific Reports
SponsorsResearch reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST). Support from Spanish MINECO under project MAT2013-48054-C2-1-R is also acknowledged. This paper contains results and findings of a research project partly funded by King Abdulaziz City for Science and Technology (KACST), Grant No. KACST GDRG AT-34-151.
PublisherNature Publishing Group
- Multisegmented FeCo/Cu nanowires: electrosynthesis, characterization, and magnetic control of biomolecule desorption.
- Authors: Özkale B, Shamsudhin N, Chatzipirpiridis G, Hoop M, Gramm F, Chen X, Martí X, Sort J, Pellicer E, Pané S
- Issue date: 2015 Apr 8
- Core-shell structure dependent reactivity of Fe@Fe₂O₃ nanowires on aerobic degradation of 4-chlorophenol.
- Authors: Ai Z, Gao Z, Zhang L, He W, Yin JJ
- Issue date: 2013 May 21
- Growth Mechanism and Electrical and Magnetic Properties of Ag-Fe₃O₄ Core-Shell Nanowires.
- Authors: Ma J, Wang K, Zhan M
- Issue date: 2015 Jul 29
- High quality self-assembly magnetite (Fe(3)O(4)) chain-like core-shell nanowires with luminescence synthesized by a facile one-pot hydrothermal process.
- Authors: Gong J, Li S, Zhang D, Zhang X, Liu C, Tong Z
- Issue date: 2010 May 28
- Dramatic reduction of surface recombination by in situ surface passivation of silicon nanowires.
- Authors: Dan Y, Seo K, Takei K, Meza JH, Javey A, Crozier KB
- Issue date: 2011 Jun 8