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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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Synthesis and magnetic property of T4 virus-supported gold-coated iron ternary nanocomposite

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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Herein, we present a novel method based on the use of the symmetrical T4 bacteriophage capsid as a scaffold for preparing the gold-coated 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 1142.86 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 Fe@Au/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 template-supported Fe@Au process.Financial 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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Other Papers In This Journal:

  1. Synthesis of hybrid nano- and microsized particles on the base of colloid silica and thiacalix[4]arene derivatives
  2. Direct assembly of nanoparticles for large-scale fabrication of nanodevices and structures
  3. Characterization of nanoparticles released during construction of photocatalytic pavements using engineered nanoparticles
  4. Workplace exposure to nanoparticles from gas metal arc welding process
  5. Synthesis and characterization of titanium nitride
  6. Convenient approaches for the synthesis of gold nanowires by successive utilization of two kinds of reducing agents in the solution of hexadecyl-trimethylammonium bromide
  7. Anion-exchanged nanosolid support of magnetic nanoparticle in combination with PNA probes for DNA sequence analysis
  8. Radiolabeled cyclic arginine-glycine-aspartic (RGD)-conjugated iron oxide nanoparticles as single-photon emission computed tomography (SPECT) and magnetic resonance imaging (MRI) dual-modality agents for imaging of breast cancer
  9. Nanoscale near-field infrared spectroscopic imaging of silica-shell/gold-core and pure silica nanoparticles
  10. Characterization of exposure to silver nanoparticles in a manufacturing facility
  11. Effect of nanofluids on thin film evaporation in microchannels
  12. In vitro study revealed different size behavior of different nanoparticles
  13. Electrokinetic motion of a rectangular nanoparticle in a nanochannel
  14. Self-assembled growth of Ni nanoparticles in amorphous alumina matrix
  15. Molecular dynamics simulation of iron nanoparticle sintering during flame synthesis
  16. Biocompatibility of transition metal-substituted cobalt ferrite nanoparticles
  17. Halloysite nanotubes grafted hyperbranched (co)polymers via surface-initiated self-condensing vinyl (co)polymerization
  18. Silver nanoparticle induced cytotoxicity
  19. Toxicity of nano- and micro-sized ZnO particles in human lung epithelial cells
  20. Detailed kinetic analysis of the impact of nucleation behavior and particle size distribution on the configurations of carbon black
  21. Hydrophilic azlactone-functionalized magnetite nanoparticle for conjugation with folic acid
  22. A simple method for the preparation of colloidal polymer-supported silver nanoparticles
  23. MRI contrast demonstration of antigen-specific targeting with an iron-based ferritin construct
  24. Fluorescent quantum dot hydrophilization with PAMAM dendrimer
  25. Functionalized bismuth ferrite harmonic nanoparticles for cancer cells labeling and imaging
  26. Dispersion quality of amine functionalized multiwall carbon nanotubes plays critical roles in polymerase chain reaction enhancement
  27. Controlled synthesis and characterization of layered manganese oxide nanostructures with different morphologies
  28. Factors influencing societal response of nanotechnology: an expert stakeholder analysis

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