Volume 129, Issue 28 pp. 8222-8226
Zuschrift

Double-Layered Plasmonic–Magnetic Vesicles by Self-Assembly of Janus Amphiphilic Gold–Iron(II,III) Oxide Nanoparticles

Dr. Jibin Song

Dr. Jibin Song

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

These authors contributed equally to this work.

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Dr. Binghui Wu

Dr. Binghui Wu

Department of Chemistry & Biochemistry, University of California, Santa Barbara, CA, 93106 USA

Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, 361005 China

These authors contributed equally to this work.

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Dr. Zijian Zhou

Dr. Zijian Zhou

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Guizhi Zhu

Dr. Guizhi Zhu

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Yijing Liu

Dr. Yijing Liu

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Zhen Yang

Zhen Yang

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Lisen Lin

Dr. Lisen Lin

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Guocan Yu

Dr. Guocan Yu

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Fuwu Zhang

Dr. Fuwu Zhang

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Guofeng Zhang

Dr. Guofeng Zhang

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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Dr. Hongwei Duan

Corresponding Author

Dr. Hongwei Duan

School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457 Singapore

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Dr. Galen D. Stucky

Corresponding Author

Dr. Galen D. Stucky

Department of Chemistry & Biochemistry, University of California, Santa Barbara, CA, 93106 USA

Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, 361005 China

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Dr. Xiaoyuan Chen

Corresponding Author

Dr. Xiaoyuan Chen

Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892 USA

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First published: 30 May 2017
Citations: 26

Abstract

Janus nanoparticles (JNPs) offer unique features, including the precisely controlled distribution of compositions, surface charges, dipole moments, modular and combined functionalities, which enable excellent applications that are unavailable to their symmetrical counterparts. Assemblies of NPs exhibit coupled optical, electronic and magnetic properties that are different from single NPs. Herein, we report a new class of double-layered plasmonic–magnetic vesicle assembled from Janus amphiphilic Au-Fe3O4 NPs grafted with polymer brushes of different hydrophilicity on Au and Fe3O4 surfaces separately. Like liposomes, the vesicle shell is composed of two layers of Au-Fe3O4 NPs in opposite direction, and the orientation of Au or Fe3O4 in the shell can be well controlled by exploiting the amphiphilic property of the two types of polymers.

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