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See detailMicrofabricated high-finesse optical cavity with open access and small volume
Trupke, Michael; Hinds, Edward A.; Eriksson, S. et al

in Applied Physics Letters (2005), 87(21), 211106--211106-3

We present a microfabricated optical cavity, which combines a very small mode volume with high finesse. In contrast to other micro-resonators, such as microspheres, the structure we have built gives atoms ... [more ▼]

We present a microfabricated optical cavity, which combines a very small mode volume with high finesse. In contrast to other micro-resonators, such as microspheres, the structure we have built gives atoms and molecules direct access to the high-intensity part of the field mode, enabling them to interact strongly with photons in the cavity for the purposes of detection and quantum-coherent manipulation. Light couples directly in and out of the resonator through an optical fiber, avoiding the need for sensitive coupling optics. This renders the cavity particularly attractive as a component of a lab-on-a-chip, and as a node in a quantum network. [less ▲]

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Peer Reviewed
See detailMicrofabricated two-dimensional (2D) hexagonal lattice trap
Rattanasonti, H; Sterling, RC; Srinivasan, P et al

in Proceedings of "IEEE Sensor Conference : Baltimore - Novembre 2013" (2013, November)

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Peer Reviewed
See detailMicrofabrication of gold wires for atom guides
Koukharenko, Elena; Moktadir, Zakaria; Bagnall, D. et al

in Eurosensors XVII, 17th European Conference on Solid-State Transducers (2003)

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See detailMicrofabrication of gold wires for atom guides
Koukharenko, Elena; Moktadir, Zakaria; Kraft, Michaël ULg et al

in Sensors and Actuators A (2004), 115(2-3), 600--607

Miniaturised atom optics is a new field allowing the control of cold atoms in microscopic magnetic traps and waveguides. Using microstructures (hereafter referred to as atom chips), the control of cold ... [more ▼]

Miniaturised atom optics is a new field allowing the control of cold atoms in microscopic magnetic traps and waveguides. Using microstructures (hereafter referred to as atom chips), the control of cold atoms on the micrometer scale becomes possible. Applications range from integrated atom interferometers to the realisation of quantum gates. The implementation of such structures requires high magnetic field gradients. The motivation of this work was to develop a suitable fabrication process for micromachined high-density current-carrying wires for atom guides. However, the developed process may be used for a variety of applications such as on-chip inductors and microtransformers. In order to realise the micromachined wires for atom guides different designs and fabrication processes were investigated. We discuss the feasibility and the suitability of the fabrication process based on gold sputtering technique to realise such devices. As an alternative we have considered a lower cost technique based on gold electroplating. For the electroplating we used commercial full bright cyanide free gold plating solution (gold sulphite, mild alkaline solution with pH = 9 Gold ECF 60, brightener E3) containing 10 g/dm gold from Metalor. Some analytical and measurement results of magnetic atom traps are also presented in this paper. [less ▲]

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See detailLa microfibrillation du myocarde
Fredericq, Léon ULg

in Archives Internationales de Physiologie (1931), XXXXIV

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See detailMicrofinance et micro-assurance santé : réflexions sur des articulations possibles à partir de quelques expériences au Bénin et au Burkina Faso
Labie, Marc; Nyssens, Marthe; Wele Idrissou, Pascal ULg

in Mondes en Développement (2007), 139(3), 57-71

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See detailMicroflore anaérobie des décharges
Hiligsmann, Serge ULg; Thonart, Philippe ULg

in Actes de l'Atelier "La problématique des déchets solides dans les villes africaines" (1997, May)

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See detailMicroflore des monticules frasniens "F2j" de Belgique
Mamet, B.; Boulvain, Frédéric ULg

in Revue de micropaléontologie (1992), 35(4), 283-302

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See detailMicrofluidic analytical techniques in drug discovery
Fillet, Marianne ULg

Conference (2015)

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See detailMicrofluidic chip with molecular beacons detects miRNAs in Human CSF to reliably characterize CNS-specific disorders
Zadran, S.; Remacle, Françoise ULg; Levine, R. D.

in RNA & Disease (2016), 3

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See detailMicrofluidic Enzymatic Biosensing Systems: a Review
Mross, Stefan; Pierrat, Sebastien; Zimmermann, Tom et al

in Biosensors & Bioelectronics (2015), 70

Microfluidic biosensing systems with enzyme-based detection have been extensively studied in the last years owing to features such as high specificity, a broad range of analytes and a high degree of ... [more ▼]

Microfluidic biosensing systems with enzyme-based detection have been extensively studied in the last years owing to features such as high specificity, a broad range of analytes and a high degree of automation. This review gives an overview of the most important factors associated with these systems. In the first part, frequently used immobilization protocols such as physisorption and covalent bonding and detection techniques such as amperometry and fluorescence measurements are discussed with respect to effort, lifetime and measurement range. The Michaelis–Menten model describing the kinetics of enzymatic reactions, the role of redox mediators and the limitations of the linear measurement range of enzymatic sensors are introduced. Several possibilities of extending the linear measurement range in microfluidic systems such as diffusion-limiting membranes and the flow injection setup are presented. Regarding the integration of enzymes into microfluidic systems during the fabrication process, the constraints imposed by the biomolecules due to the limited usage of high temperatures and solvents are addressed. In the second part, the most common forms of enzyme integration into microfluidic systems, i.e. in channels and on electrodes, on microparticles, on paper and thread and as injected enzyme solutions, are reviewed, focusing on fabrication, applications and performance. [less ▲]

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See detailMicrofluidic on a wire
Terwagne, Denis ULg; Vandewalle, Nicolas ULg; Gilet, Tristan ULg

Poster (2009, November)

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See detailMicrofluidic on optical fibers: Towards a new kind of fluorescent biosensor
Lismont, Marjorie ULg; Vandewalle, Nicolas ULg; Weyer, Floriane ULg et al

Poster (2014, February)

In recent works, the behavior of droplets moving along vertical treads due to gravity was studied. It appeared that the droplet can be stopped by encountering a horizontal fiber depending on droplet ... [more ▼]

In recent works, the behavior of droplets moving along vertical treads due to gravity was studied. It appeared that the droplet can be stopped by encountering a horizontal fiber depending on droplet volumes and fiber characteristics. On the basis of this behavior and by replacing treads by two crossed optical fibers, it is possible to combine fluidics and optics to develop a new kind of fluorescent sensor. In our work, the intersection between two crossed optical fibers is used as the basic unit of an original optofluidic biosensor. These two optical fibers are used as droplets carriers: one for probe molecules and the other one for target species. The fiber's junction catches the droplets and act as a reaction center. The main advantage of using optical fibers resides in their ability to propagate and collect light to and from the droplet localized at the fiber's crossing. This optical fiber configuration can therefore allow the study of biological interactions using fluorescent labels. This new and versatile detection scheme was validated on a calcium indicator where ions detection is accomplished by using a dye, Oregon green Bapta-2, that has a Ca 2+ recognition group as well as an entity exhibiting fluorescence. A FRET recognition event, between Rh-Con A and FITC-Dextran, was also investigated to detect glucose. Finally, a prototype of a multiplexing device, composed of several juxtaposed fibers' junctions, was developed. [less ▲]

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See detailMicrofossil evidence for +21 m eustatic sea level during marine isotope stage 11
van Hengstum, P. J.; Scott, Dave; Javaux, Emmanuelle ULg

Conference (2009, October)

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See detailMicrofossiles végétaux
Vanguestaine, m; Steemans, Philippe ULg; Streel, Maurice ULg

in Mémoires de la Société géologique et minéralogique de Bretagne (1986), 3

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See detailMicrofossiles végétaux du Tournaisien Inferieur dans le core-drill de Brévillers (Pas-de-Calais).
Combaz, A; Streel, Maurice ULg

in Streel, Maurice; Wagner, R.H. (Eds.) Colloque sur la Stratigraphie du Carbonifère, Liège 1970 (1971)

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See detailMicrofossils
Javaux, Emmanuelle ULg

in Gargaud et al (Ed.) Encyclopedia of Astrobiology (2011)

Detailed reference viewed: 21 (2 ULg)