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Biomimetic Process for Preparing Magnetite Fibers

Published online by Cambridge University Press:  15 February 2011

Carl W. Lawton  and
Christopher S. Shields
Carl W. Lawton
Affiliation:
Department of Chemical and Nuclear Engineering, University of Massachusetts Lowell, Lowell, MA 01854
Christopher S. Shields
Affiliation:
Department of Chemical and Nuclear Engineering, University of Massachusetts Lowell, Lowell, MA 01854
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Abstract

Two different biomimetic strategies were utilized in the formation of magnetite fibers. The first strategy utilized natural (Sphaerotilus natans sheaths) or synthetic (hollow fibers) matrices for magnetite formation. The second strategy made use of an iron-hydroxide intermediate that was subsequently chemically converted to magnetite within the biomimetic matrix. The formation of magnetite was determined by both visual and x-ray diffraction analysis. This process has advantages over conventional routes because of the expense and handling problems associated with the production of ceramic whiskers and fibers. The magnetite formed by this process may prove to have unique properties due to its unusual fiber structure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 292: Symposium S – Biomolecular Materials , 1992 , 107
Copyright
Copyright © Materials Research Society 1993

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