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Issue 12, 2013
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Coexistence of plasmonic and magnetic properties in Au89Fe11 nanoalloys

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Abstract

We describe an environmentally friendly, top-down approach to the synthesis of Au89Fe11 nanoparticles (NPs). The plasmonic response of the gold moiety and the magnetism of the iron moiety coexist in the Au89Fe11 nanoalloy with strong modification compared to single element NPs, revealing a non-linear surface plasmon resonance dependence on the iron fraction and a transition from paramagnetic to a spin-glass state at low temperature. These nanoalloys are accessible to conjugation with thiolated molecules and they are promising contrast agents for magnetic resonance imaging.

Graphical abstract: Coexistence of plasmonic and magnetic properties in Au89Fe11 nanoalloys

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Publication details

The article was received on 05 Mar 2013, accepted on 14 Apr 2013 and first published on 23 Apr 2013


Article type: Paper
DOI: 10.1039/C3NR01119D
Citation: Nanoscale, 2013,5, 5611-5619
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    Coexistence of plasmonic and magnetic properties in Au89Fe11 nanoalloys

    V. Amendola, M. Meneghetti, O. M. Bakr, P. Riello, S. Polizzi, D. H. Anjum, S. Fiameni, P. Arosio, T. Orlando, C. de Julian Fernandez, F. Pineider, C. Sangregorio and A. Lascialfari, Nanoscale, 2013, 5, 5611
    DOI: 10.1039/C3NR01119D

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