Article | REF: IN139 V1

Detecting dibutyl and tribulyltin by means of a bacterial bioassay: application to the control of antifouling paints

Author: Marie-José DURAND

Publication date: August 10, 2011

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2. Organotin-based antifouling systems

Fouling is a natural phenomenon in which marine organisms colonize the hulls of ships and the submerged installations of port facilities.

This fouling phenomenon has been widely studied: macromolecules (polysaccharides, proteins, proteoglycans, etc.) present in seawater settle on surfaces, encouraging the establishment of bacteria, microalgae and fungi. These unicellular organisms in turn form a substrate that attracts protozoa, then fixed organisms such as molluscs and macroalgae. The warmer the water, the more rapid the colonization. Submerged parts of ships can quickly (less than 6 months) become covered with fouling, leading to fuel overconsumption (up to 40%) due to increased load and friction forces; this fouling is also responsible for coating corrosion.

The colonization of ship hulls can...

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Organotin-based antifouling systems