Preparation and characterization of (3-aminopropyl) triethoxysilane-coated magnetite nanoparticles - Yamaura, Mitiko; Camilo, Ruth Luqueze; Sampaio, Luiz Carlos; Macêdo, Marcelo Andrade; Nakamura, Marcelo; Toma, Henrique Eisi (Journal of Magnetism and Magnetic Materials, 2004)