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| Verger, F.; Pain, T.; Nazabal, V.; Boussard-pledel, C.; Bureau, Bruno; Colas, Florent; Rinnert, Emmanuel; Boukerma, Kada; Compere, Chantal; Guilloux-viry, M.; Deputier, S.; Perrin, A.; Guin, J. P.. |
| The development of infrared sensing platform requires adapted materials. In this work, we used sputtered gold nanoparticles on a chalcogenide glass to demonstrate that these infrared materials can be used as substrate for surface enhanced infrared absorption (SEIRA) spectroscopy. The sputtering parameters were optimized to get the highest possible enhancement. To assess it, a self-assembled monolayer of 4-nitrothiophenol was used. These preliminary results are promising and pave the way for various configurations of waveguide for integrated optical components. (C) 2012 Elsevier B.V. All rights reserved. |
| Tipo: Text |
Palavras-chave: Chalcogenide glass; Sputtering; Gold nanoparticles; 4-Nitrothiophenol; SEIRA; Surface enhanced infrared absorption. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00116/22748/20613.pdf |
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| Lahens, Lisa; Strady, Emilie; Kieu-le, Thuy-chung; Dris, Rachid; Boukerma, Kada; Rinnert, Emmanuel; Gasperi, Johnny; Tassin, Bruno. |
| Both macroplastic and microplastic contamination levels were assessed for the first time in a tropical river estuary system, i.e. the Saigon River, that traverses a developing South East Asian megacity, i.e. Ho Chi Minh City, Vietnam. The analysis of floating debris collected daily on the Nhieu Loc - Thi Nghe canal by the municipal waste management service shows that the plastic mass percentage represents 11-43%, and the land-based plastic debris entering the river was estimated from 0.96 to 19.91 g inhabitant-1 d-1, namely 350 to 7270 g inhabitant-1 yr-1. Microplastics were assessed in the Saigon River and in four urban canals by sampling bulk water for anthropogenic fiber analysis and 300 μm mesh size plankton net exposition for fragment analysis. Fibers... |
| Tipo: Text |
Palavras-chave: Microplastic; Macroplastic; Urban river; Contamination; Anthropogenic fibers. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00427/53815/55460.pdf |
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| Delauney, Laurent; Boukerma, Kada; Bucas, Karenn; Coail, Jean-yves; Debeaumont, Mathieu; Forest, Bertrand; Garello, Celia; Guyader, Gerard; Le Bras, Yves; Peleau, Michel; Rinnert, Emmanuel. |
| Oceans environmental monitoring and seafloor exploitation need in situ sensors and optical devices (cameras, lights) in various locations and on various carriers in order to initiate and to calibrate environmental models or to operate underwater industrial process supervision. For more than 10 years Ifremer deploys in situ monitoring systems for various seawater parameters and in situ observation systems based on lights and HD Cameras. To be economically operational, these systems must be equipped with a biofouling protection dedicated to the sensors and optical devices used in situ. Indeed, biofouling, in less than 15 days [1] will modify the transducing interfaces of the sensors and causes unacceptable bias on the measurements provided by the in situ... |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00349/45998/45667.pdf |
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| Petihakis, George; Petersen, Wilhelm; Nair, Rajesh; Faimali, Marco; Pavanello, Giovanni; Boukerma, Kada; Delauney, Laurent; Puillat, Ingrid; Farcy, Patrick; Greenwood, Naomi. |
| The JERICO European research infrastructure (RI) is integrating diverse platform types such as fixed buoys, piles, moorings, drifters, FerryBoxes, gliders, HF radars, coastal cable observatories and the associated technologies dedicated to observe and monitor coastal European seas. The first steps of setting up, coordination and harmonization were done during 2011 to 2015 in the framework of FP7-JERICO (www.jerico-fp7.eu), a 4-year long infrastructure project co-funded by the European Commission with 27 partners from 17 European countries under the coordination of IFREMER. Next steps are driven in the H2020-JERICO-NEXT European project until 2019, involving 33 partners. The main objective of the JERICO consortium is to establish a Pan European approach for... |
| Tipo: Text |
Palavras-chave: Coastal observatories; Harmonization; Biofouling; Calibration; JERICO. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00295/40665/49966.pdf |
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| Verger, F.; Nazabal, V.; Colas, Florent; Nemec, P.; Cardinaud, C.; Baudet, E.; Chahal, R.; Rinnert, Emmanuel; Boukerma, Kada; Peron, Isabelle; Deputier, S.; Guilloux-viry, M.; Guin, J. P.; Lhermite, H.; Moreac, A.; Compere, Chantal; Bureau, Bruno. |
| The primary objective of this study is the development of transparent thin film materials in the IR enabling strong infrared absorption of organic compounds in the vicinity of metal nanoparticles by the surface plasmon effect. For developing these optical micro-sensors, hetero-structures combining gold nanoparticles and chalcogenide planar waveguides are fabricated and adequately characterized. Single As2S3 and Ge25Sb10Se65 amorphous chalcogenide thin films are prepared by radio-frequency magnetron sputtering. For the fabrication of gold nanoparticles on a chalcogenide planar waveguide, direct current sputtering is employed. Fabricated single layers or hetero-structures are characterized using various techniques to investigate the influence of deposition... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00170/28094/26679.pdf |
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| Foulon, Valentin; Artigaud, Sebastien; Buscaglia, Manon; Bernay, Benoit; Fabioux, Caroline; Petton, Bruno; Elies, Philippe; Boukerma, Kada; Hellio, Claire; Guerard, Fabienne; Boudry, Pierre. |
| Bioadhesion of marine organisms has been intensively studied over the last decade because of their ability to attach in various wet environmental conditions and the potential this offers for biotechnology applications. Many marine mollusc species are characterized by a two-phase life history: pelagic larvae settle prior to metamorphosis to a benthic stage. The oyster Crassostrea gigas has been extensively studied for its economic and ecological importance. However, the bioadhesive produced by ready to settle larvae of this species has been little studied. The pediveliger stage of oysters is characterized by the genesis of a specific organ essential for adhesion, the foot. Our scanning electron microscopy and histology analysis revealed that in C. gigas the... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00462/57379/59452.pdf |
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| Baillieul, Marion; Baudet, Emeline; Michel, Karine; Moreau, Jonathan; Němec, Petr; Boukerma, Kada; Colas, Florent; Charrier, Joël; Bureau, Bruno; Rinnert, Emmanuel; Nazabal, Virginie. |
| he objective of this study is to demonstrate the successful functionalization of the surface of a chalcogenide infrared waveguide with the ultimate goal of developing an infrared micro-sensor device. First, a polyisobutylene coating was selected by testing its physico-chemical compatibility with a Ge-Sb-Se selenide surface. To simulate the chalcogenide platform infrared sensor, the detection of benzene, toluene, and ortho-, meta- and para-xylenes was efficaciously performed using a polyisobutylene layer spin-coated on 1 and 2.5 µm co-sputtered selenide films of Ge28Sb12Se60 composition deposited on a zinc selenide prism used for attenuated total reflection spectroscopy. The thickness of the polymer coating was optimized by attenuated total reflection... |
| Tipo: Text |
Palavras-chave: Optical infrared sensor; Chalcogenide glasses; Mid-infrared; Mono-aromatic hydrocarbons; Natural waters; BTEXs; PAHs. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00687/79947/82867.pdf |
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