Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

California Institute of Technology

Commissariat a L'energie Atomique

Total Sa

Totalenergies Onetech

Apix Analytics

Eif—astute

Analytical Pixels Technology-apix Technology

Total Se

Pierre Puget

Eric Colinet

Michael Roukes

Laurent Duraffourg

Patrice Caillat

Philippe Andreucci

Edward B Myers

Patrick Pouteau

Vincent Agache

Jean-Christophe Coiffic

Frédéric Ginot

Frédéric-Xavier Gaillard

Charles-Marie Tassetti

Joshua B Whiting

Philippe Coric

Matthieu Loriau

Mélanie Petitjean

John Richard Ordonez Varela

Régis Barattin

Peter Thomas Stevens

Jean-Claude De Wit

Phillipe Andreucci

Frank Haeseler

Michael L Roukes

Joshua Whiting

The invention relates to a method for analysing hydrocarbons, with the implementation of a gas chromatography separation according to a first controlled temperature profile, to separate a sample into a plurality of analytes and the detection of at least one of said analytes by measurement of a variation of the resonance frequency of at least one resonator of nano-electromechanical system (NEMS) type covered with a functional layer made to vibrate at the resonance frequency thereof, under the effect of an adsorption or desorption of the analyte by the functional layer, the resonator being subjected to a second controlled temperature profile, lower than the first profile.

Method for analysing hydrocarbons

Analyzerfor analyzing a fluidcontaining at least one substance to be analyzed and at least one inflammable substance containing:

Analyzer for fluids containing an inflammable substance and corresponding method

The invention relates to a measurement system including a network of nanoelectromechanical system (NEMS) resonators, characterized in that: each one of said resonators includes: an electrostatic activation device capable of generating a vibration of a beam exposed to said excitation signal, at least one piezoresistive stress gauge made of a doped semiconducting material, extending from the beam so as to detect a movement of said beam, the variation in the electrical resistance of said at least one gauge supplying an output signal; said network includes at least two groups of resonators, each group including at least two resonators having an identical empty resonance frequency, each group of resonators having an empty resonance frequency different from that of each other group; the resonators forming each group are connected in parallel; the groups of resonators forming said network are connected in parallel; said system includes a reading device designed to supply an excitation signal at the network input and to determine the resonance frequency of a group of resonators which is selected by injecting, into said excitation signal, a frequency component corresponding to the empty resonance frequency of each selected group of resonators, and by identifying, in the output signal of the network, a resonance frequency component of the selected group of resonators.

Measurement system including a network of nanoelectromechanical system resonators

A detection method of detecting analytes of interest which are present in a liquid. The detection method including the steps of forming drops of liquid on a first surface by capillary breaking of a finger of liquid, which is initially formed by liquid dielectrophoresis. The thus formed drops each come into contact with a different detection surface, which is arranged facing the first surface. Analytes of interest which are present in each of the drops are detected at the corresponding detection surface.

Method and microsystem for detecting analytes which are present in drops of liquid

A system for analyzing a gas mixture, including at least one chromatography column, a mechanism injecting the mixture into the column, and a mechanism detecting compound(s) forming the gas mixture, the detection mechanism including at least one detector of nanosensor type of an outlet of the column and a detector of nanosensor type in the column, capable of detecting passage of the compounds. It is then possible to determine the velocity of each of the compounds within the system.

System for analyzing a gas mixture including at least one chromatography column

The invention relates to a gas analysis system comprising, from upstream to downstream:

Gas analysis system comprising a gas spectrometer equipped with a micro-reflectron

A molecule is separated from a liquid sample containing said molecule and at least one additional molecule having a larger hydrodynamic diameter than the hydrodynamic diameter of the molecule to be separated, by means of a separation device comprising a substrate, at least one circulation channel arranged in said substrate, and at least one nanotube associated with said molecule to be separated and formed on a free surface of the substrate. Separation is achieved by means of the internal channel of a nanotube, such as a carbon nanotube, presenting an effective diameter chosen in predetermined and controlled manner. The effective diameter of the internal channel is chosen such as to be larger than the hydrodynamic diameter of the molecule to be separated and smaller than the hydrodynamic diameter of the additional molecules of larger hydrodynamic diameters.

Separation device of molecules and production method thereof

The present invention relates to a method of transporting an analyte present in a sample, to a method of concentrating an analyte present in a sample, and to a device for implementing these methods. In the method of transporting an analyte present in a sample of the present invention, a solution A in which the analyte is attached to magnetic particles is prepared from the sample; the solution A is introduced into a first container connected via a bottleneck to a second container; and the analyte attached to the magnetic particles is moved, by means of a magnetic system, from the first container to the second container via the bottleneck, the second container being filled with all or part of the solution A and/or with another solution.

Methods and devices for transporting and concentrating an analyte present in a sample

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Saint Ismier, France

Pierre Puget