Patents by Inventor Stephanie Descroix
Stephanie Descroix has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240002776Abstract: The present invention relates to a device (2) for providing a liquid medium with a controlled flow rate and with a controlled concentration of a dissolved gas, the device (2) comprising: —a liquid reservoir (4) provided with: —at least one gas inlet (7); —at least one gas outlet (8); and—at least one liquid outlet (9); —an admission line (5) configured to provide a gaseous medium into the liquid reservoir (4), the admission line (5) being connected to the at least one gas inlet (7) and comprising at least one control valve (12); and an emission line (6) configured to withdraw the gaseous medium from the liquid reservoir (4), the emission line (6) being connected to the at least one gas outlet (8) and comprising at least one control valve (15). The present invention further relates to an assembly comprising said device, and to a method for providing a liquid medium with a controlled flow rate and with a controlled concentration in a dissolved gas.Type: ApplicationFiled: September 30, 2021Publication date: January 4, 2024Applicants: Sorbonne Universite, Centre National De La Recherche Scientifique, Institut Curie, FluigentInventors: William Cesar, Charlotte Bouquerel, Marine Verhulsel, Jean-Louis Viovy, Stéphanie Descroix
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Patent number: 10780435Abstract: Disclosed is a minifluidic device including a matrix, an elongated guiding duct embedded at least in part in the matrix, with at least one port to the outside of the matrix, a movable fiber at least partly contained in the guiding duct, and able to undergo within the guiding duct, and at least along some part of the fiber, at least one action selected among a sliding, or a deformation, or a rotation and at least one of the movable fiber or the guiding duct is elastic or is non linear along at least part of its length, or at least part of the matrix is elastic.Type: GrantFiled: July 22, 2016Date of Patent: September 22, 2020Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIEInventors: Bastien Venzac, Ayako Yamada, Jean-Louis Viovy, Stephanie Descroix, Laurent Malaquin
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Patent number: 10704074Abstract: The invention relates to a method for detecting organisms in a liquid sample, comprising the provision of a capture area including particles in a liquid medium and subjected to a hydrodynamic flow, wherein the organisms to be detected are capable of binding to these particles, the method comprising the steps of: (a) circulating the sample through the capture area; (b) circulating a growth medium through the capture area; and (c) determining the presence, nature or concentration of organisms in the capture area; said particles being retained in the capture area as a fluidized bed for at least one part of these steps. The invention also relates to a system for implementing this method.Type: GrantFiled: October 23, 2015Date of Patent: July 7, 2020Inventors: Jean-Louis Viovy, Stephanie Descroix, Laurent Malaquin, Iago Pereiro, Lucile Alexandre
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Patent number: 10661274Abstract: Disclosed is a fluidic device including at least: a) a solid matrix; b) a textile component, embedded in the matrix and mechanically cohesive with the matrix; c) at least one channel embedded in the matrix and entangled with the textile component, the channel being at least partly open. A method for making a fluidic device includes providing a textile component including support fibers and at least a movable fiber entangled with the textile, embedding at least part of the textile and part of the movable fiber, in a matrix precursor material, applying a treatment in order to obtain a solid matrix.Type: GrantFiled: July 22, 2016Date of Patent: May 26, 2020Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIEInventors: Jean-Louis Viovy, Bastien Venzac, Laurent Malaquin, Stephanie Descroix
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Patent number: 10130949Abstract: The present invention concerns a microfluidic system comprising: a microchannel containing several elements of two non-miscible fluids, the microchannel comprising a droplet (30) containing magnetic particles (M), and a device for generating inside the microchannel magnetic field, said device comprising an activable magnetic element, the activable magnetic element comprising a tip (5,6), the microfluidic system being configured to transport the droplet by flow or by pressure difference.Type: GrantFiled: July 24, 2012Date of Patent: November 20, 2018Assignees: SORBONNE UNIVERSITE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ETAT FRANCAIS REPRESENTED BY MINISTERE DE LA DEFENSEInventors: Jean-Louis Viovy, Laurent Malaquin, Stefano Begolo, Anaïs Ali Cherif, Stephanie Descroix
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Publication number: 20180200714Abstract: Disclosed is a fluidic device including at least: a) a solid matrix; b) a textile component, embedded in the matrix and mechanically cohesive with the matrix; c) at least one channel embedded in the matrix and entangled with the textile component, the channel being at least partly open. A method for making a fluidic device includes providing a textile component including support fibers and at least a movable fiber entangled with the textile, embedding at least part of the textile and part of the movable fiber, in a matrix precursor material, applying a treatment in order to obtain a solid matrix.Type: ApplicationFiled: July 22, 2016Publication date: July 19, 2018Inventors: Jean-Louis VIOVY, Bastien VENZAC, Laurent MALAQUIN, Stephanie DESCROIX
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Publication number: 20180193833Abstract: Disclosed is a minifluidic device including a matrix, an elongated guiding duct embedded at least in part in the matrix, with at least one port to the outside of the matrix, a movable fiber at least partly contained in the guiding duct, and able to undergo within the guiding duct, and at least along some part of the fiber, at least one action selected among a sliding, or a deformation, or a rotation and at least one of the movable fiber or the guiding duct is elastic or is non linear along at least part of its length, or at least part of the matrix is elastic.Type: ApplicationFiled: July 22, 2016Publication date: July 12, 2018Inventors: Bastien VENZAC, Ayako YAMADA, Jean-Louis VIOVY, Stephanie DESCROIX, Laurent MALAQUIN
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Patent number: 9939439Abstract: The invention concerns a microfluidic system (1) comprising: at least one channel (2) for the flow of fluid having an inlet (4), an outlet (5) and a longitudinal axis (7) extending between the inlet (4) and the outlet (5), said channel (2) comprising a capture zone (3), and the cross section of the channel (2) orthogonal to the longitudinal axis (7) of the channel (2) increasing in size in the capture zone (3), from the inlet (4) towards the outlet (5) of the channel (2); and means (6) for applying a magnetic field having a decreasing intensity in the capture zone (3) of the channel (2), from the inlet (4) towards the outlet (5) of the channel. The invention also concerns a method for treating a sample that can be implemented with this system.Type: GrantFiled: September 6, 2013Date of Patent: April 10, 2018Inventors: Jean-Louis Viovy, Sanae Tabnaoui, Laurent Malaquin, Stéphanie Descroix
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Patent number: 9885075Abstract: The present invention concerns a method of detecting macroions in a liquid medium contained in a space, the method including: a) submitting the liquid medium to a stimulating electrical field to induce formation of aggregates of macroions, the formed aggregates of macroions preferably not including any additional labeling agent, and b) measuring, in a detection zone of the space, spatial and/or temporal fluctuations within the liquid medium of at least one variable depending on the concentration of the macroions in the liquid medium, and c) determining, based on these fluctuations, the presence of the macroions, step c) preferably including processing by a time-dependent or space dependent analysis, more preferably by wavelet analysis, or by autocorrelation the fluctuations measured at step b).Type: GrantFiled: July 2, 2013Date of Patent: February 6, 2018Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIEInventors: Jean-Louis Viovy, François Amblard, Laurent Malaquin, Bastien Venzac, Mohamed Lemine Diakite, Stephanie Descroix, Ismaïl Cisse, Ulrich Bockelmann
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Publication number: 20170335364Abstract: The invention relates to a method for detecting organisms in a liquid sample, comprising the provision of a capture area including particles in a liquid medium and subjected to a hydrodynamic flow, wherein the organisms to be detected are capable of binding to these particles, the method comprising the steps of: (a) circulating the sample through the capture area; (b) circulating a growth medium through the capture area; and (c) determining the presence, nature or concentration of organisms in the capture area; said particles being retained in the capture area as a fluidized bed for at least one part of these steps. The invention also relates to a system for implementing this method.Type: ApplicationFiled: October 23, 2015Publication date: November 23, 2017Inventors: Jean-Louis Viovy, Stephanie Descroix, Laurent Malaquin, Iago Pereiro, Lucile Alexandre
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Publication number: 20150219650Abstract: The invention concerns a microfluidic system (1) comprising: at least one channel (2) for the flow of fluid having an inlet (4), an outlet (5) and a longitudinal axis (7) extending between the inlet (4) and the outlet (5), said channel (2) comprising a capture zone (3), and the cross section of the channel (2) orthogonal to the longitudinal axis (7) of the channel (2) increasing in size in the capture zone (3), from the inlet (4) towards the outlet (5) of the channel (2); and means (6) for applying a magnetic field having a decreasing intensity in the capture zone (3) of the channel (2), from the inlet (4) towards the outlet (5) of the channel. The invention also concerns a method for treating a sample that can be implemented with this system.Type: ApplicationFiled: September 6, 2013Publication date: August 6, 2015Inventors: Jean-Louis Viovy, Sanae Tabnaoui, Laurent Malaquin, Stéphanie Descroix
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Publication number: 20140342373Abstract: The present invention concerns a microfluidic system comprising: a microchannel containing several elements of two non-miscible fluids, the microchannel comprising a droplet (30) containing magnetic particles (M), and a device for generating inside the microchannel magnetic field, said device comprising an activable magnetic element, the activable magnetic element comprising a tip (5,6), the microfluidic system being configured to transport the droplet by flow or by pressure difference.Type: ApplicationFiled: July 24, 2012Publication date: November 20, 2014Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Jean-Louis Viovy, Laurent Malaquin, Stefano Begolo, AnaïS Ali Cherif, Stephanie Descroix