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Synthesis, magnetic properties, surface modification and cytotoxicity evaluation of Y3Fe5−xAlxO12 (0⩽x⩽2) garnet submicron particles for biomedical applications

hal.structure.identifierNational Institute for Materials Science [NIMS]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGRASSET, Fabien
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMORNET, Stéphane
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDEMOURGUES, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPORTIER, Josik
hal.structure.identifierInstitut Bergonié [Bordeaux]
dc.contributor.authorBONNET, Jacques
hal.structure.identifierInstitut Bergonié [Bordeaux]
dc.contributor.authorVEKRIS, Antoine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUGUET, Etienne
dc.date.issued2001-09
dc.identifier.issn0304-8853
dc.description.abstractEnYttrium aluminum iron garnet Y3Fe5−xAlxO12 compounds were produced by the citrate gel process by varying the aluminum content x from 0 to 2. Particles with an average size of about 100 nm and a specific surface area ranging from 6 to 28 m2/g were obtained. Curie temperatures (TC) were determined from the temperature dependence of the field-cooled magnetization (FCM) and the remnant magnetization (REM) and range from –40°C to 280°C. According to the magnetic moment variation, the aluminum cation seems to replace the iron cation in the tetrahedral site for compounds with x<0.7. 3-Aminopropyltrimethoxysilane (γ-APS) was grafted onto the particles surface and its presence confirmed by infra-red spectroscopy. Cytotoxicity assays were carried out during a period of 13 days using human microglia and rat glioblastoma cell lines. The presence of the amine-functionalized particles did not affect the cell viability or the culture growth rate. Finally, amine-functionalized particles were successfully labeled with covalently linked fluorescing molecules.
dc.language.isoen
dc.publisherElsevier
dc.title.enSynthesis, magnetic properties, surface modification and cytotoxicity evaluation of Y3Fe5−xAlxO12 (0⩽x⩽2) garnet submicron particles for biomedical applications
dc.typeArticle de revue
dc.identifier.doi10.1016/S0304-8853(01)00386-9
dc.subject.halChimie
dc.subject.halChimie/Chimie inorganique
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Magnetism and Magnetic Materials
bordeaux.page409-418
bordeaux.volume234
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-03070397
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03070397v1
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