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Registros recuperados: 63
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IR-biosensor for in situ detection of toxic algae alexandrium minutum ArchiMer
Le Person, Jenny; Compere, Chantal; Lehaitre, Michel; Anne, Marie-laure; Boussard-pledel, Catherine; Bureau, Bruno; Adam, Jean-luc; Guilloux-viry, M; Burel, L.
Toxic algal blooms are a public health issue and constitute a menace for coastal areas. The potentiality of a chalcogenide optical fibre biosensor, operating in the mid-infrared (MIR) spectral domain, is studied. In order to monitor blooms of toxic algae, more specifically Alexandrium minutum specie, two ways are explored: immuno-biosensing and DNA identification.
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Ano: 2005 URL: http://archimer.ifremer.fr/doc/00089/19993/17656.pdf
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Towards in situ detection of PAH trace in sea-water using SERS-active sensors ArchiMer
Peron, Olivier; Rinnert, Emmanuel; Lehaitre, Michel; Colas, Florent; Compere, Chantal.
This paper reports the development of a sensor based on surface-enhanced Raman scattering (SERS) for analyses in sea-water. Polycyclic aromatic hydrocarbons (PAHs) are targeted by these sensors and their detection in situ summons up chemical synthesis and optical development. Firstly, a relevant synthesis of SERS active substrates based on gold nanostructures is presented. Different kinds of substrates have been synthesized under variable experimental conditions to modify some parameters such as i) gold shape, size and distribution and such as ii) chemical functionalization: (i) gold nanoparticles were prepared either by chemical reduction of HAuCl4 or by physical deposition. (ii) Substrates were functionalized by hydrophobic films to allow nonpolar...
Tipo: Text Palavras-chave: Functionalization; Silanization; Gold nanostructures; SERS; PAH detection; Sea-water; Sensor; In situ.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00012/12363/9152.pdf
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The effect of the salinity level on conductivity sensor calibration ArchiMer
Le Bihan, Caroline; Salvetat, Florence; Lamande, Nolwenn; Compere, Chantal.
This paper presents a study on the calibration of conductivity sensors. The puropse is to demonstrate the effect of the salinity concentration on the response of conductivity sensor. Several experiments are performed on three sensors of different technologies: a Seabird Sbe37-SIP MicroCAT, a Falmouth Scientific Inc. IMCTD-MBP-D and a NKE Instrumentation Smatch. The analysis of the results shows an overall impact of the salinity level on the sensor response. This effect is discussed regarding the oceanographic requirements.
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Ano: 2014 URL: http://archimer.ifremer.fr/doc/00260/37143/35668.pdf
Registros recuperados: 63
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