Encapsulation of Fe3O4 with amina modified silica

Robby Roswanda (Laboratorium Kimia Organik, Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Bandung)
Didin Mujahidin (Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4 9747 AG, Groningen)

Jurnal Keramik dan Gelas Indonesia
Vol 26, No 1 (2017): Jurnal Keramik dan Gelas Indonesia

Superparamagnet iron oxide Fe3O4 particles were encapsulated with amina modified silica via Stober Method. The particles generated were rod-like whose length was c.a. 2 µm and the thickness of silica shell was c.a. 75 nm. Magnetization measurements show that the silica shell does not disrupt the superparamagnetic property of Fe3O4. The amine group on the encapsulated particles was confirmed by attaching FITC (Fluorescein isothiocyanate) dye and checked under fluorescence microscope. The encapsulated particle is useful to be modified further for various applications that need magnetic field control.