Characterisation and growth of magnetotactic bacteria: implication to clean up of environmental pollution
Characterisation and growth of magnetotactic bacteria: implication to clean up of environmental pollution
Magnetotactic bacteria possess a magnetic moment due the presence of membrane bounded crystals of magnetite, (Fe3O4) called magnetosomes within their structure. Through manipulation in an applied magnetic field it is possible to determine the size, speed, and magnetic moment of individual bacteria, and hence an average for a culture. Variations in these characteristics with growth have been measured, indicating the suitability of this particular magnetic spirillum for metal loading. A correlation between the increase in magnetic moment and iron uptake of this bacterium leads us to propose a new mechanism for the biomineralization of magnetite. This paper describes the characterization of a magnetotactic spirillum and the implications these results have for its use in the clean up of environmental pollution.
5394-5396
Bahaj, A. S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
James, P.A.B.
da0be14a-aa63-46a7-8646-a37f9a02a71b
Ellwood, D.C.
a7dc8f2a-f392-42b4-a022-fa5a58cf6be6
Watson, J.H.P.
e4f7e9d2-6299-4626-bc44-1ee8545899e6
1993
Bahaj, A. S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
James, P.A.B.
da0be14a-aa63-46a7-8646-a37f9a02a71b
Ellwood, D.C.
a7dc8f2a-f392-42b4-a022-fa5a58cf6be6
Watson, J.H.P.
e4f7e9d2-6299-4626-bc44-1ee8545899e6
Bahaj, A. S., James, P.A.B., Ellwood, D.C. and Watson, J.H.P.
(1993)
Characterisation and growth of magnetotactic bacteria: implication to clean up of environmental pollution.
Journal of Applied Physics, 73 (10), .
(doi:10.1063/1.353743).
Abstract
Magnetotactic bacteria possess a magnetic moment due the presence of membrane bounded crystals of magnetite, (Fe3O4) called magnetosomes within their structure. Through manipulation in an applied magnetic field it is possible to determine the size, speed, and magnetic moment of individual bacteria, and hence an average for a culture. Variations in these characteristics with growth have been measured, indicating the suitability of this particular magnetic spirillum for metal loading. A correlation between the increase in magnetic moment and iron uptake of this bacterium leads us to propose a new mechanism for the biomineralization of magnetite. This paper describes the characterization of a magnetotactic spirillum and the implications these results have for its use in the clean up of environmental pollution.
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Published date: 1993
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Local EPrints ID: 74019
URI: http://eprints.soton.ac.uk/id/eprint/74019
ISSN: 0021-8979
PURE UUID: 3d390192-f482-41f0-bace-7867efa178f8
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:37
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Author:
D.C. Ellwood
Author:
J.H.P. Watson
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