Flame Synthesis of Silica‐Coated Iron Oxide Nanoparticles and Their Characterization
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We have used the modified diffusion flame burner to synthesize silica coated iron oxide nanoparticles havingenhanced superparamagnetic property. Silica‐encapsulated iron oxide particles were directly observed using a highresolution transmission electron microscope. From the energy dispersive X‐ray spectroscopy (EDS) and zeta potentialmeasurements, the iron oxide particles were found to be completely covered by a silica coating layer. X‐rayphotoelectron spectroscopy (XPS) and X‐ray diffraction (XRD) measurements revealed that the iron oxide core consistsof γ‐Fe2O3 rather than α‐Fe2O3. Our magnetization measurements support this conclusion. Biocompatibility test of thesilica‐coated iron oxide nanoparticles is also conducted using the protein adsorption onto the coated particle.
Abstract
We have used the modified diffusion flame burner to synthesize silica coated iron oxide nanoparticles havingenhanced superparamagnetic property. Silica‐encapsulated iron oxide particles were directly observed using a highresolution transmission electron microscope. From the energy dispersive X‐ray spectroscopy (EDS) and zeta potentialmeasurements, the iron oxide particles were found to be completely covered by a silica coating layer. X‐rayphotoelectron spectroscopy (XPS) and X‐ray diffraction (XRD) measurements revealed that the iron oxide core consistsof γ‐Fe2O3 rather than α‐Fe2O3. Our magnetization measurements support this conclusion. Biocompatibility test of thesilica‐coated iron oxide nanoparticles is also conducted using the protein adsorption onto the coated particle.
참고문헌 (22)
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