PREPARATION OF MgFe2O4 MICROSPHERE USING SPRAY DRYER FOR EMBOLISATION THERAPY APPLICATION

Thermal coagulation therapy using magnetic materials in an ac magnetic field is a potential new treatment of cancerous tissues. MgFe2O4 microspheres with a 20-32 micron diameter range were prepared by a spray dryer using bead-milled nano-sized particles. A commercial powder was bead-milled to an app...

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Bibliographic Details
Published in:Journal of the Ceramic Society of Japan 2010-01, Vol.118 (1384), p.1207-1211
Main Authors: Aono, H, Naohara, T, Maehara, T, Hirazawa, H, Watanabe, Y
Format: Article
Language:English
Subjects:
Beads
Driers
Magnetic fields
Microspheres
Nanostructure
Sprayers
Sprays
Therapy
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Summary:Thermal coagulation therapy using magnetic materials in an ac magnetic field is a potential new treatment of cancerous tissues. MgFe2O4 microspheres with a 20-32 micron diameter range were prepared by a spray dryer using bead-milled nano-sized particles. A commercial powder was bead-milled to an approximate 6.2 nm crystallite size. The microspheres were obtained using the spray dryer when the air pressure was low (0.03 MPa). The yield of MgFe2O4 20-32 micron sized microspheres was improved by a combination of low air pressure and high ferrite concentration in the slurry. The heat generation ability in an AC magnetic field (370 kHz, 1.77 kA/m) was improved by the bead milling.
ISSN:1882-0743