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Monodisperse Au/aminosilica composite nanospheres: Facile one-step synthesis and their applications in gene transfection

Published online by Cambridge University Press:  11 July 2012

Lei Wang
Affiliation:
Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
Tuck-yun Cheang
Affiliation:
Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
Shenming Wang
Affiliation:
Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
Zuojun Hu
Affiliation:
Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
Zhouhao Xing
Affiliation:
Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
Wengang Qu
Affiliation:
Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
Anwu Xu*
Affiliation:
Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
*
a)Address all correspondence to this author. e-mail: anwuxu@ustc.edu.cn
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Abstract

In this study, Au/aminosilica composite nanospheres have been synthesized via a simple one-pot route using HAuCl4 and N-(3-trimethoxysilylpropyl)-ethylenediamine as starting materials. Scanning electron microscopy results show that these spheres are with diameters of about 300 nm. The obtained Au/aminosilica nanospheres were used as nonviral carriers for gene delivery. Compared with commercial Lipofectamine 2000, the Au/aminosilica nanospheres are with higher transfection efficiency and lower cytotoxicity. Furthermore, the nanospheres are biocompatible, which may find applications in gene delivery and drug carrier.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

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