Observation of low aluminum corrosion rates during biofilm formation

Markus Leitz; Hilmar Franke

doi:10.1117/12.463818

26 March 2002 Observation of low aluminum corrosion rates during biofilm formation

Markus Leitz, Hilmar Franke

Proceedings Volume 4616, Optical Fibers and Sensors for Medical Applications II; (2002) https://doi.org/10.1117/12.463818
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

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.

Citation Download Citation

Markus Leitz and Hilmar Franke "Observation of low aluminum corrosion rates during biofilm formation", Proc. SPIE 4616, Optical Fibers and Sensors for Medical Applications II, (26 March 2002); https://doi.org/10.1117/12.463818

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KEYWORDS

Aluminum

Corrosion

Bacteria

Metals

Prisms

Reflectivity

Silver

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