Synthesis and characterization of dendritic molecule-coated magnetic maghemite nanoparticles

JULIETA PAEZ; ARIEL CAPPELLETTI; ANA BARUZZI; VERÓNICA BRUNETTI; MIRIAM STRUMIA

Rouen (Francia)

Simposio; Polychar 17. World Forum on Advanced Materials; 2009

In this work, a synthetic pathway was developed to obtain dendritic molecule-coated magnetic nanoparticles. Briefly, maghemite magnetic iron oxide ( -Fe2O3) nanoparticles NPs were modified with 3-(aminopropyl)trimethoxysilane (APS) as silane coupling agent [7]. Afterwards, dendritic molecule (D NO2) were covalently attached to the modified NPs, achieving nitrofunctionalized magnetic nanoparticles. Infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and transmission electronic microscopy (TEM) were used to characterize the derivatised surface.2O3) nanoparticles NPs were modified with 3-(aminopropyl)trimethoxysilane (APS) as silane coupling agent [7]. Afterwards, dendritic molecule (D NO2) were covalently attached to the modified NPs, achieving nitrofunctionalized magnetic nanoparticles. Infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and transmission electronic microscopy (TEM) were used to characterize the derivatised surface.2) were covalently attached to the modified NPs, achieving nitrofunctionalized magnetic nanoparticles. Infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and transmission electronic microscopy (TEM) were used to characterize the derivatised surface. O