Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcis.2012.01.034
Title: Synthesis and properties of Au-Fe 3O 4 heterostructured nanoparticles
Authors: Sheng, Y.
Xue, J. 
Keywords: Au
Fe 3O 4
Hetero-dimer
Nanocomposites
Plasmon resonance
Issue Date: 15-May-2012
Citation: Sheng, Y., Xue, J. (2012-05-15). Synthesis and properties of Au-Fe 3O 4 heterostructured nanoparticles. Journal of Colloid and Interface Science 374 (1) : 96-101. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2012.01.034
Abstract: Au-Fe 3O 4 composite nanoparticles have received much research interest due to their promising biomedical applications. In this work, Au-Fe 3O 4 composites with well-defined dimer-like nanostructure were synthesized via thermal decomposition route. The surfactant 1,2-hexandicandiol has proved to be critical for the formation of the Au-Fe 3O 4 hetero-dimers. The hetero-dimers production yield could be significantly improved to be 90% when the 1,2-hexandicandiol concentration was optimized at 0.6M. The obtained Au-Fe 3O 4 hetero-dimers possess dual-functionalities of plasmon resonance and magnetization. Moreover, the Fe 3O 4 domain of the hetero-dimers can be tuned readily by adjusting the molar ratio between Fe and Au sources. Furthermore, it was demonstrated that these Au-Fe 3O 4 hetero-dimers could be further developed into star-like Au-Fe 3O 4 nanoparticles which showed plasmon absorption at NIR region. © 2012 Elsevier Inc.
Source Title: Journal of Colloid and Interface Science
URI: http://scholarbank.nus.edu.sg/handle/10635/86749
ISSN: 00219797
DOI: 10.1016/j.jcis.2012.01.034
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