Fe 3O 4/Au/Fe 3O 4 nanoflowers exhibiting tunable saturation magnetization and enhanced bioconjugation
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Pages (from-to) | 747-751 |
Journal / Publication | Nanoscale |
Volume | 4 |
Issue number | 3 |
Publication status | Published - 7 Feb 2012 |
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Abstract
Composite nanoparticles have proved to be promising in a wide range of biotechnological applications. In this paper, we report on a facile method to synthesize novel Fe 3O 4/Au/Fe 3O 4 nanoparticles (nanoflowers) that integrate hybrid components and surface types. We demonstrate that relative to conventional nanoparticles with core/shell configuration, such nanoflowers not only retain their surface plasmon property but also allow for 170% increase in the saturation magnetization and 23% increase in the conjugation efficiency due to the synergistic co-operation between the hierarchical structures. Moreover, we demonstrate that the magnetic properties of such composite nanoparticles can be tuned by controlling the size of additional petals (Fe 3O 4 phase). These novel building blocks could open up novel and exciting vistas in nanomedicine for broad applications such as biosensing, cancer diagnostics and therapeutics, targeted delivery, and imaging. © 2012 The Royal Society of Chemistry.
Citation Format(s)
Fe 3O 4/Au/Fe 3O 4 nanoflowers exhibiting tunable saturation magnetization and enhanced bioconjugation. / Hui, Wenli; Shi, Feng; Yan, Kunping et al.
In: Nanoscale, Vol. 4, No. 3, 07.02.2012, p. 747-751.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review