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Synthesis and characterization of rare-earth orthoferrite LnFeO3 nanoparticles bioimaging

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierDepartment of Chemistry [CICECO]
dc.contributor.authorPINHO, Sonia
hal.structure.identifierDepartments of Physics [CICECO]
dc.contributor.authorAMARAL, João
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELVILLE, Marie-Hélène
hal.structure.identifierDepartment of Life Sciences and Coimbra Chemistry Center, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.
dc.contributor.authorGERALDES, Carlos F. G. C.
dc.date.issued2018-08-23
dc.identifier.issn1434-1948
dc.description.abstractEnA combination of sol–gel synthesis and thermal decomposition was developed for preparing nanosized, perovskite‐type LnFeO3 (Ln = Eu, Gd, Tb) powders. Perovskite‐type powders with crystalline particles of 100 nm average size, as determined by transmission electron microscopy (TEM), could be obtained after a thermal treatment at 800 °C. The perovskite nanoparticles (NPs) were further characterized by X‐ray powder diffraction and Mössbauer spectroscopy. These were in agreement with the pure perovskite LnFeO3 structure with the expected Zeeman sextet corresponding to a magnetically ordered phase. Magnetization measurements [M(H)] at 5 K and 300 K showed a behavior that is dominated by antiferromagnetic interactions and weak ferromagnetism in EuFeO3, while for Ln = Gd, Tb, they were dominated by the low ordering temperature Ln magnetic sublattice. The colloidal aqueous NPs suspensions exhibited no significant leaching of free Ln3+ ions. Their relaxivities define them as potential T2 MRI contrast agents for further biomedical applications. The NPs showed fast uptake and no cytotoxicity at concentrations below 62.5 µg/mL with respect to Hela cells.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.title.enSynthesis and characterization of rare-earth orthoferrite LnFeO3 nanoparticles bioimaging
dc.typeArticle de revue
dc.identifier.doi10.1002/ejic.201800468
dc.subject.halChimie/Matériaux
bordeaux.journalEuropean Journal of Inorganic Chemistry
bordeaux.page3570-3578
bordeaux.volume2018
bordeaux.issue31
bordeaux.peerReviewedoui
hal.identifierhal-01864259
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01864259v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=European%20Journal%20of%20Inorganic%20Chemistry&rft.date=2018-08-23&rft.volume=2018&rft.issue=31&rft.spage=3570-3578&rft.epage=3570-3578&rft.eissn=1434-1948&rft.issn=1434-1948&rft.au=PINHO,%20Sonia&AMARAL,%20Jo%C3%A3o&WATTIAUX,%20Alain&DUTTINE,%20Mathieu&DELVILLE,%20Marie-H%C3%A9l%C3%A8ne&rft.genre=article


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