ortho-Phenylenediamine: an effective spacer to build highly magnetic Fe3O4/Au nanocomposites

Xinmei Zhao; Narayan S Hosmane; Aiguo Wu

doi:10.1002/cphc.201200710

ortho-Phenylenediamine: an effective spacer to build highly magnetic Fe3O4/Au nanocomposites

Chemphyschem. 2012 Dec 21;13(18):4142-7. doi: 10.1002/cphc.201200710. Epub 2012 Nov 9.

Authors

Xinmei Zhao¹, Narayan S Hosmane, Aiguo Wu

Affiliation

¹ Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.

PMID: 23143847
DOI: 10.1002/cphc.201200710

Abstract

1,2-Diaminobenzene, popularly known as ortho-phenylenediamine (PDA), is found to be a prototype spacer for the deposition of gold nanoparticles on the surfaces of Fe(3)O(4) microspheres. Upon carbonization with PDA, the morphology of the product changes significantly, and the resulting nanocomposites exhibit enhanced magnetism beyond the saturation value of Fe(3)O(4). The Fe(3)O(4)/Au nanocomposites show good surface-enhanced Raman spectroscopy activity with a detection limit of 10(-15) M.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ferric Compounds / chemistry
Gold / chemistry*
Magnetic Resonance Imaging / methods
Magnetics / methods
Magnetite Nanoparticles / chemistry*
Metal Nanoparticles / chemistry*
Microspheres
Nanocomposites / chemistry*
Phenylenediamines / chemistry*

Substances

Ferric Compounds
Magnetite Nanoparticles
Phenylenediamines
ferric oxide
Gold
1,2-diaminobenzene