Magnetic Hollow Spheres of Periodic Mesoporous Organosilica and Fe3O4 Nanocrystals: Fabrication and Structure Control

Authors

  • L. Zhang,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072 (Australia)
    2. Institute for Micro and Nano Science and Technology, Shanghai Jiaotong University, Shanghai 200030 (P.R. China)
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  • S. Z. Qiao,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072 (Australia)
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  • Y. G. Jin,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072 (Australia)
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  • Z. G. Chen,

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072 (Australia)
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  • H. C. Gu,

    1. Institute for Micro and Nano Science and Technology, Shanghai Jiaotong University, Shanghai 200030 (P.R. China)
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  • G. Q. Lu

    1. ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072 (Australia)
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  • This work was financially supported by the Australian Research Council (ARC) through Discovery Project program (DP0452461), UQ Middle Career Fellowship for S.Z.Q. and the ARC Centre of Excellence for Functional Nanomaterials. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

original image

Periodic mesoporous organosilica magnetic hollow spheres (PMO–MHS) are synthesized. The particle size, shell wall thickness and saturation magnetization value of PMO–MHS are tunable by varying the ratio of templating agent to magnetic nanoparticles. The high saturation magnetization ensures that these functional mesoporous hollow spheres can be efficient materials for targeted drug delivery assisted by magnetic fields.

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