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Biofilm formation on structural materials in deep sea environments

Venkatesan, R and Dwarakadasa, ES and Ravindran, M (2003) Biofilm formation on structural materials in deep sea environments. In: Indian Journal Of Engineering And Materials Sciences, 10 (6). pp. 486-491.

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Abstract

Biofilm formation on structural materials in deep-sea environment after long duration of exposure is reported here for the first time. Some structural material specimens such as steel, steel with zinc and aluminum anodes and carbon fibre-reinforced composite were exposed at depths of 500, 1200, 3500 and 5100 in for 174 days. The bacterial colony formation on these specimens was studied after their retrieval from the ocean. Macrofouling was not found in any of these materials. Carbon fibre-reinforced composite did not support bacterial colony formation at all the tested depths. Steel supported bacterial colonies at all depths. Aluminium and zinc anodes did not support bacterial colonies at 3500 and 5100 m depths. This could be related to lower temperatures prevailing at these depths. Also, all the identified bacterial colonies were aerobic as dissolved oxygen was present even at 5100 m depth. Hence, anaerobic conditions did not exist during exposure under thes

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Council of Scientific and Industrial Research.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 26 Dec 2008 10:47
Last Modified: 26 Dec 2008 10:47
URI: http://eprints.iisc.ernet.in/id/eprint/17581

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