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Title of Journal: J Nanopart Res

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Abbravation: Journal of Nanoparticle Research

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Springer Netherlands

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DOI

10.1002/mds.22776

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1572-896X

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Synthesis and magnetic property of T4 virussuppor

Authors: Ziming Xu Hongjing Sun Faming Gao Li Hou Na Li
Publish Date: 2012/11/03
Volume: 14, Issue: 12, Pages: 1267-
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Abstract

Herein we present a novel method based on the use of the symmetrical T4 bacteriophage capsid as a scaffold for preparing the goldcoated iron ternary core/shell nanostructure Results showed that the thick gold shell was obtained to effectively protect Fe core from oxidation Magnetic measurements showed that the nanocomposites were superparamagnetic at room temperature with a blocking temperature of about 35 K At 3 K its coercivity of 114286 Oe was larger than the existing experimental values The magnetic property of Au/T4 was also tested demonstrating the source of the magnetic sample arising from the Fe core only The absorption spectrum of the FeAu/T4 complex was measured and compared with gold/virus Different thickness gold shells were controlled in the synthesis by tuning the Au salt addition On the basis of results and discussion we further speculated the general growing mechanism of the templatesupported FeAu processFinancial support from the National Natural Science Foundation of China Grant No 21071122 and Research Fund for the Doctoral Program of Higher Education of China Grant No 20091333110009 and the Natural Science Foundation of Hebei Grant No ZD2010112 E2010001169 11965152D 2011162

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