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 journalpeer-review

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Author(s)

  • Wenli Hui
  • Feng Shi
  • Kunping Yan
  • Mingli Peng
  • Xiao Cheng
  • Yanling Luo
  • Xuemei Chen
  • Yali Cui

Detail(s)

Original languageEnglish
Pages (from-to)747-751
Journal / PublicationNanoscale
Volume4
Issue number3
Publication statusPublished - 7 Feb 2012

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; Peng, Mingli; Cheng, Xiao; Luo, Yanling; Chen, Xuemei; Roy, V. A L; Cui, Yali; Wang, Zuankai.

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 journalpeer-review