Direct amine-functionalisation of γ-Fe2O3nanoparticles

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

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.

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, 43(7), 2948-2952. https://doi.org/10.1039/c3dt52386a

• Acceptance Date: Nov 25, 2013
• Publication Date: Feb 21, 2014
• Deposit Date: Jun 10, 2015
• Publicly Available Date: Jun 10, 2015
• 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
• DOI: https://doi.org/10.1039/c3dt52386a
• Keywords: Amine-functionalisation; Maghemite; Ferrofluids; Hematite
• Public URL: https://hull-repository.worktribe.com/output/375052
• Publisher URL: http://pubs.rsc.org/en/Content/ArticleLanding/2014/DT/C3DT52386A#!divAbstract
• Additional Information: Copy of article published in: Dalton transactions, 2014, v.43, issue 7
• Contract Date: Jun 10, 2015