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RESEARCH PRODUCT

Synthesis of Titanate Nanotubes Directly Coated with USPIO in Hydrothermal Conditions: A New Detectable Nanocarrier

Paul WalkerDavid VandrouxLionel MauriziNadine MillotAnne-laure Papa

subject

Materials scienceNanotechnology02 engineering and technologyengineering.material010402 general chemistry01 natural sciencesCARBON NANOTUBESHydrothermal circulationTitanate nanotubesCoatingBIODISTRIBUTIONOXIDE NANOTUBES[INFO.INFO-IM]Computer Science [cs]/Medical ImagingHydrothermal synthesisPARTICLESPhysical and Theoretical ChemistryNanocomposite[ INFO.INFO-IM ] Computer Science [cs]/Medical ImagingUltrasmall superparamagnetic iron oxide021001 nanoscience & nanotechnologyTitanate0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsGeneral EnergyengineeringMORPHOLOGYPROPERTYNanocarriers0210 nano-technology

description

International audience; Abstract: For the first time, titanate nanotubes (TiONts) coated with USPIO (ultrasmall superparamagnetic iron oxide) without polymer functionalization and directly obtained during TiONts formation is reported. The coating of these tubes was performed directly during the TiONts hydrothermal synthesis. After this treatment, in strongly basic conditions, USPIO particles kept their structure and magnetic properties while their size distribution slightly increased. By coupling zeta-potential measurements and TEM observations at different pH it appeared that interactions between nanotubes and USPIO were not electrostatic. This study presents the new design of a titanate needle-shaped nanocomposite capable of being detected by MRI for future biomedical applications.

yearjournalcountryeditionlanguage
2011-10-06
10.1021/jp2056893https://hal.archives-ouvertes.fr/hal-00785179