Production of magnetic microspheres by ultrasonic atomisation

Kathryn Margery Spiers, John Stanley Forsythe, Kiyonori Suzuki, John Dixon Cashion

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Magnetic microspheres, with mean particle sizes from 23 to 32 mu m were produced by the ultrasonic atomisation of a suspension of magnetite particles, of approximately 200 nm diameter, in a solution of poly-L-lactic acid (PLLA). The mean particle diameter and the width of the particle diameter distribution both increased with increasing magnetite concentration. The particles appear to be suitable for magnetic hyperthermic treatment of liver cancers, with the hysteresis loop areas increasing linearly with nominal magnetite concentration up to 30 wt magnetite. (C) 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)97 - 100
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Issue number1
Publication statusPublished - 2007

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