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Issue 7, 2014
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Direct amine-functionalisation of γ-Fe2O3 nanoparticles

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Abstract

A novel and simple preparation of amine-modified γ-Fe2O3 nanoparticles is described. The presence of amine groups on the surface, instead of hydroxyl groups, will allow conjugation of biologically active molecules to the iron oxide nanoparticles without the need for a size increasing silica shell. Furthermore, the outer amine-layer increases the temperature of the γ-Fe2O3 to α-Fe2O3 structural transition in a similar way to previously reported cationic substitutions. This may suggest the formation of an oxide–nitride outer layer. Re-dispersion of the amine-modified γ-Fe2O3 nanoparticles led to the preparation of stable ferrofluids.

Graphical abstract: Direct amine-functionalisation of γ-Fe2O3 nanoparticles

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Publication details

The article was received on 29 Aug 2013, accepted on 25 Nov 2013 and first published on 26 Nov 2013


Article type: Paper
DOI: 10.1039/C3DT52386A
Citation: Dalton Trans., 2014,43, 2948-2952
  • Open access: Creative Commons BY license
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    Direct amine-functionalisation of γ-Fe2O3 nanoparticles

    V. Rocher, J. Manerova, M. Kinnear, D. J. Evans and M. G. Francesconi, Dalton Trans., 2014, 43, 2948
    DOI: 10.1039/C3DT52386A

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