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| Colas, Florent; Crassous, Marie-pierre; Laurent, Sebastien; Litaker, Richard W.; Rinnert, Emmanuel; Le Gall, Erwan; Lunven, Michel; Delauney, Laurent; Compère, Chantal. |
| Over the past decade Surface Plasmon Resonance (SPR) techniques have been applied to the measurement of numerous analytes. In this article, an SPR biosensor system deployed from an oceanographic vessel was used to measure dissolved domoic acid (DA), a common and harmful phycotoxin produced by certain microalgae species belonging to the genus Pseudo-nitzschia. During the biosensor deployment, concentrations of Pseudo-nitzschia cells were very low over the study area and measured DA concentrations were below detection. However, the in situ operational detection limit of the system was established using calibrated seawater solutions spiked with DA. The system could detect the toxin at concentrations as low as 0.1 ng mL−1 and presented a linear dynamic range... |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00324/43481/42921.pdf |
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| Caro, A.; Humblot, V.; Minier, M.; Salmain, M.; Compère, Chantal; Pradier, C.-m.. |
| All surfaces that are immersed in seawater rapidly become covered by nitrogenous compounds, proteins, carbohydrates, salts, silica and bacteria in a few hours, and by a grown biofilm in a few days. These biodeterioration, physical and chemical damages involve important cleaning costs. Organostanic paintings used up to now to protect the surfaces against this spoiling will be prohibited in 2008 because of their toxicity. That's why the stake today is to find alternatives to these paintings. The solution which is here suggested consists in acting on the first stages of the formation of the biofilm i.e. the proteins and bacterial adsorption on the surface. For this, the surface is chemically modified then functionalized by enzymes. Enzymes will act locally on... |
| Tipo: Text |
Palavras-chave: Acier inoxydable; Fonctionnalisation; Enzymes; Adsorption bactérienne; PM-IRRAS; XPS; Stainless steel; Functionalization; Enzymes; Bacterial adsorption; IR; XPS. |
| Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/00479/59095/61733.pdf |
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