Afficher la notice abrégée

SYNTHESIS AND FUNCTIONALIZATION OF ROD-LIKE IRON OXIDE NANOPARTICLES

dc.rights.licenseopen
hal.structure.identifierInstitut de Physique de Nice [INPHYNI]
dc.contributor.authorALVES MARINS, J.
hal.structure.identifierInstitut de Physique de Nice [INPHYNI]
dc.contributor.authorMONTAGNON, T
hal.structure.identifierInstitut de Physique de Nice [INPHYNI]
dc.contributor.authorEZZAIER, H.
hal.structure.identifierPHysicochimie des Electrolytes et Nanosystèmes InterfaciauX [PHENIX]
dc.contributor.authorBÉE, A.
hal.structure.identifierPHysicochimie des Electrolytes et Nanosystèmes InterfaciauX [PHENIX]
dc.contributor.authorTALBOT, D.
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
dc.contributor.authorSANDRE, Olivier
hal.structure.identifierState Research Institute Center for Physical Sciences and Technology
dc.contributor.authorBALTRUNAS, D
hal.structure.identifierScientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus
dc.contributor.authorPETROV, A
hal.structure.identifierInstitut de Physique de Nice [INPHYNI]
dc.contributor.authorKUZHIR, P.
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2018
dc.date.conference2018
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19933
dc.description.abstractEnMagnetic iron oxide nanoparticles have been recognized for use in various promising biomedical applications, such as detection of biological molecules, contrast agents in magnetic resonance imaging (MRI), vectors in drug delivery and mediators to convert electromagnetic energy to heat (hyperthermia). We reproduce a simple two-step reaction strategy for the synthesis of uniform magnetic iron oxide nanorods with ~50 nm in length and ~5 nm in diameter (Figure 1) and their colloidal stabilization with three different polymers (bisphosphonate polyoxyethylene-Optima 100, polymethacrylate polyoxyethylene-PCP45 and polyacrylic acid sodium salt-PAA) in water. Two-step reaction consists on synthesis of akaganeite followed by its transformation by reduction using hydrazine in microwave to obtain magnetic iron oxide nanorods [1]. The nanorods present the saturation magnetization value of 64 kA/m and residual magnetization of 15 kA/m, thus this material has ferro-or ferrimagnetic behavior. To estimate the iron oxide composition we use the technique of Mössbauer spectroscopy and a mixture of maghemite (strongly magnetic phase) with a quasi-amorphous intermediate phase (weakly magnetic phase) was detected, explaining a relatively low magnetization saturation. The suspensions of MNPs were probed by dynamic light scattering (DLS) and the distribution curve provides the Z-average hydrodynamic diameter equal 70±5 nm for Optima 100, 82±8 nm for PCP45 and 99±8 nm for PAA. We also study the effect of the polymer concentration and of the solution pH on the suspension stability.
dc.language.isoen
dc.title.enSYNTHESIS AND FUNCTIONALIZATION OF ROD-LIKE IRON OXIDE NANOPARTICLES
dc.typeCommunication dans un congrès avec actes
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.countryDK
bordeaux.title.proceedingScientific and Clinical Applications of magnetic nanocariers
bordeaux.conference.cityCopenhagen
bordeaux.peerReviewedoui
hal.identifierhal-01971359
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01971359v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2018&rft.au=ALVES%20MARINS,%20J.&MONTAGNON,%20T&EZZAIER,%20H.&B%C3%89E,%20A.&TALBOT,%20D.&rft.genre=proceeding


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée