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Direct amine-functionalisation of γ-Fe2O3nanoparticles

Rocher, V.; Manerova, J.; Kinnear, M.; Evans, D. J.; Francesconi, M. Grazia

Authors

V. Rocher

J. Manerova

M. Kinnear

D. J. Evans



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.

Publication Date Feb 21, 2014
Journal Dalton transactions
Print ISSN 1477-9226
Electronic ISSN 1477-9234
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 43
Issue 7
Pages 2948-2952
Institution Citation Rocher, V., Manerova, J., Kinnear, M., Evans, D. J., & Francesconi, M. G. (2014). Direct amine-functionalisation of γ-Fe2O3nanoparticles. Dalton transactions : an international journal of inorganic chemistry / RSoC, 43(7), 2948-2952. https://doi.org/10.1039/c3dt52386a
DOI https://doi.org/10.1039/c3dt52386a
Keywords Amine-functionalisation; Maghemite; Ferrofluids; Hematite
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2014/DT/C3DT52386A#!divAbstract
Copyright Statement This Open Access Article is licensed under a
Creative Commons Attribution 3.0 Unported Licence
Additional Information Copy of article published in: Dalton transactions, 2014, v.43, issue 7

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Copyright Statement
This Open Access Article is licensed under a
Creative Commons Attribution 3.0 Unported Licence





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