Coexistence of plasmonic and magnetic properties in Au89Fe 11 nanoalloys

Handle URI:
http://hdl.handle.net/10754/562508
Title:
Coexistence of plasmonic and magnetic properties in Au89Fe 11 nanoalloys
Authors:
Amendola, Vincenzo; Meneghetti, Moreno; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Riello, Pietro; Polizzi, Stefano; Anjum, Dalaver H.; Fiameni, Stefania; Arosio, Paolo; Orlando, Tomas; De Julian Fernandez, César; Pineider, Francesco; Sangregorio, Claudio; Lascialfari, Alessandro
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 Au 89Fe11 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. © 2013 The Royal Society of Chemistry.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC); Advanced Nanofabrication, Imaging and Characterization Core Lab; Materials Science and Engineering Program; Core Labs; Functional Nanomaterials Lab (FuNL)
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Nanoscale
Issue Date:
2013
DOI:
10.1039/c3nr01119d
PubMed ID:
23685617
Type:
Article
ISSN:
20403364
Sponsors:
This research was supported by the University of Padova grant (PRAT) no. CPDA114097/11. CJF, CS, FP, AL and PA acknowledge Fondazione Cariplo (Project no. 2010-0612) and Italian MIUR (FIRB Project "RINAME" No. RBAP114AMK). FP acknowledges "Rete ItalNanoNet" (Pr. no. RBPR05JH2P).
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorAmendola, Vincenzoen
dc.contributor.authorMeneghetti, Morenoen
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorRiello, Pietroen
dc.contributor.authorPolizzi, Stefanoen
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorFiameni, Stefaniaen
dc.contributor.authorArosio, Paoloen
dc.contributor.authorOrlando, Tomasen
dc.contributor.authorDe Julian Fernandez, Césaren
dc.contributor.authorPineider, Francescoen
dc.contributor.authorSangregorio, Claudioen
dc.contributor.authorLascialfari, Alessandroen
dc.date.accessioned2015-08-03T10:40:43Zen
dc.date.available2015-08-03T10:40:43Zen
dc.date.issued2013en
dc.identifier.issn20403364en
dc.identifier.pmid23685617en
dc.identifier.doi10.1039/c3nr01119den
dc.identifier.urihttp://hdl.handle.net/10754/562508en
dc.description.abstractWe 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 Au 89Fe11 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. © 2013 The Royal Society of Chemistry.en
dc.description.sponsorshipThis research was supported by the University of Padova grant (PRAT) no. CPDA114097/11. CJF, CS, FP, AL and PA acknowledge Fondazione Cariplo (Project no. 2010-0612) and Italian MIUR (FIRB Project "RINAME" No. RBAP114AMK). FP acknowledges "Rete ItalNanoNet" (Pr. no. RBPR05JH2P).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleCoexistence of plasmonic and magnetic properties in Au89Fe 11 nanoalloysen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentFunctional Nanomaterials Lab (FuNL)en
dc.identifier.journalNanoscaleen
dc.contributor.institutionUniv Padua, Dept Chem Sci, I-35131 Padua, Italyen
dc.contributor.institutionUniv Ca Foscari Venezia, Dept Mol Sci & Nanosyst, I-30172 Venice, Italyen
dc.contributor.institutionINSTM UdR Venezia, I-30172 Venice, Italyen
dc.contributor.institutionCNR IENI, I-35127 Padua, Italyen
dc.contributor.institutionUniv Milan, Dipartimento Fis, Milan, Italyen
dc.contributor.institutionConsorzio INSTM, Milan, Italyen
dc.contributor.institutionUniv Pavia, Dipartimento Fis, I-27100 Pavia, Italyen
dc.contributor.institutionConsorzio INSTM, I-27100 Pavia, Italyen
dc.contributor.institutionCNR ISTM Milano, I-20133 Milan, Italyen
dc.contributor.institutionINSTM, I-20133 Milan, Italyen
dc.contributor.institutionUniv Padua, CNR ISTM, Dept Chem Sci, I-35131 Padua, Italyen
dc.contributor.institutionUniv Florence, Dept Chem, I-50019 Sesto Fiorentino, FI, Italyen
dc.contributor.institutionINSTM, I-50019 Sesto Fiorentino, FI, Italyen
kaust.authorBakr, Osman M.en
kaust.authorAnjum, Dalaver H.en

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