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Proceedings Paper

Observation of low aluminum corrosion rates during biofilm formation
Author(s): Markus Leitz; Hilmar Franke
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Paper Abstract

An optical technique based on the surface plasmon resonance of thin was used to study the influence of aqueous organic subtances on thin aluminum films. In a quasi continous flow experiment over several days it was found that the aluminium was dissolved and the thickness decrease could be monitored very accurately. In a series of experiments with different organic components the corrosion could be attributed to the nutrient Alginate promomoting medium and the extracellular polymeric substances produced by the bacteria pseudomonas aeruginosa. In comparison with inorganic substances the same behaviour could not be observed. Regardless of the particular chemical reactions involved this method seems to be suitable to monitor low aluminium corrosion rates in the order of nm/h quite precisely.

Paper Details

Date Published: 26 March 2002
PDF: 8 pages
Proc. SPIE 4616, Optical Fibers and Sensors for Medical Applications II, (26 March 2002); doi: 10.1117/12.463818
Show Author Affiliations
Markus Leitz, Gerhard-Mercator-Univ.-Gesamthochschule Duisburg (Germany)
Hilmar Franke, Gerhard-Mercator-Univ.-Gesamthochschule Duisburg (Germany)

Published in SPIE Proceedings Vol. 4616:
Optical Fibers and Sensors for Medical Applications II
Israel Gannot, Editor(s)

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