Patents by Inventor Jean Louis Viovy

Jean Louis Viovy 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).

  • Patent number: 10780435
    Abstract: 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: Grant
    Filed: July 22, 2016
    Date of Patent: September 22, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIE
    Inventors: Bastien Venzac, Ayako Yamada, Jean-Louis Viovy, Stephanie Descroix, Laurent Malaquin
  • Patent number: 10767151
    Abstract: A device for cell culture, in particular of neuronal cells, including: a substrate defining a first microfluidic chamber to be seeded with a first cell culture, and at least a second microfluidic chamber, a fluidic interconnection system connecting the first and second chambers and enabling cellular extensions, in particular axons, to extend from one chamber to the other, wherein the interconnection system of the device is made so as to promote the progression of at least one first type of cellular extension, the first and second types of extension being different either due to the microfluidic chamber from which they originate, or due to the type of cell of which they constitute an extension.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: September 8, 2020
    Assignees: CNRS-DAE, INSTITUT CURIE, SORBONNE UNIVERSITE
    Inventors: Jean-Louis Viovy, Jean-Michel Peyrin, Bernard Brugg, Laure Saias, Paul Gougis, Maeva Vignes
  • Publication number: 20200247046
    Abstract: A microfluidic print head of a printer has a distal face, an injection channel, a suction channel, a groove, and a light source or an optical waveguide. The injection channel is configured to inject an ink onto a substrate and leads onto the distal face by an injection opening The suction channel is configured to suck up the ink and leads onto the distal face by a suction opening. The groove is defined on the distal face and into which the suction opening leads.
    Type: Application
    Filed: August 3, 2018
    Publication date: August 6, 2020
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, SORBONNE UNIVERSITE
    Inventors: Laurent Malaquin, Jean Louis Viovy, Sandrine Souleille, Xavier Dollat, Victor Fournie
  • Patent number: 10704074
    Abstract: 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: Grant
    Filed: October 23, 2015
    Date of Patent: July 7, 2020
    Inventors: Jean-Louis Viovy, Stephanie Descroix, Laurent Malaquin, Iago Pereiro, Lucile Alexandre
  • Publication number: 20200171499
    Abstract: A microfluidic device for performing physical, chemical or biological treatment to at least one packet without contamination.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicants: INSTITUT CURIE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Louis VIOVY, Max CHABERT, Kevin DORFMAN
  • Patent number: 10661274
    Abstract: 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: Grant
    Filed: July 22, 2016
    Date of Patent: May 26, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIE
    Inventors: Jean-Louis Viovy, Bastien Venzac, Laurent Malaquin, Stephanie Descroix
  • Patent number: 10661278
    Abstract: A microfluidic device for performing physical, chemical or biological treatment to at least one packet without contamination.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 26, 2020
    Assignees: INSTITUT CURIE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Louis Viovy, Max Chabert, Kevin Dorfman
  • Publication number: 20190204266
    Abstract: An aqueous liquid medium for analyzing, purifying or separating species in an element having walls or for treating the walls of an element. The medium includes at least a polymer consisting of several polymeric segments. The polymer is of the irregular block-copolymer or irregular comb-like polymer type and has on the average at least three junction points between polymeric segments of different chemical or topological nature. The medium may be used in methods for analyzing, purifying or separating species and methods for treating an element to be contacted with a fluid and/or species contained in the fluid during preservation, transport, analysis, purification or separation of the fluid.
    Type: Application
    Filed: October 3, 2018
    Publication date: July 4, 2019
    Applicants: INSTITUTE CURIE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Jean-Louis VIOVY, Valessa BARBIER
  • Publication number: 20190055511
    Abstract: The present invention relates to a microfluidic device to manipulate, select, treat, or cultivate living bodies, comprising a first chamber, a second chamber and a network of guiding tracks, wherein: said network of guiding tracks comprises at least one first guiding track connecting the first chamber and the second chamber and at least one second guiding track connecting said at least one first guiding track with at least two interconnections; and said at least one second guiding track comprises a curved part; said curved part exhibiting a concavity facing the second chamber or the part of the network connected to the second chamber.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 21, 2019
    Inventors: Catherine Villard, Jean-Louis Viovy, Renaud Renault, Jean-Baptiste Durand, Jean-Michel Peyrin, Ivan Ferrante
  • Patent number: 10130949
    Abstract: 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: Grant
    Filed: July 24, 2012
    Date of Patent: November 20, 2018
    Assignees: SORBONNE UNIVERSITE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ETAT FRANCAIS REPRESENTED BY MINISTERE DE LA DEFENSE
    Inventors: Jean-Louis Viovy, Laurent Malaquin, Stefano Begolo, Anaïs Ali Cherif, Stephanie Descroix
  • Publication number: 20180200714
    Abstract: 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: Application
    Filed: July 22, 2016
    Publication date: July 19, 2018
    Inventors: Jean-Louis VIOVY, Bastien VENZAC, Laurent MALAQUIN, Stephanie DESCROIX
  • Publication number: 20180193833
    Abstract: 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: Application
    Filed: July 22, 2016
    Publication date: July 12, 2018
    Inventors: Bastien VENZAC, Ayako YAMADA, Jean-Louis VIOVY, Stephanie DESCROIX, Laurent MALAQUIN
  • Patent number: 9939439
    Abstract: 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: Grant
    Filed: September 6, 2013
    Date of Patent: April 10, 2018
    Inventors: Jean-Louis Viovy, Sanae Tabnaoui, Laurent Malaquin, Stéphanie Descroix
  • Patent number: 9885075
    Abstract: 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: Grant
    Filed: July 2, 2013
    Date of Patent: February 6, 2018
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIE
    Inventors: Jean-Louis Viovy, François Amblard, Laurent Malaquin, Bastien Venzac, Mohamed Lemine Diakite, Stephanie Descroix, Ismaïl Cisse, Ulrich Bockelmann
  • Publication number: 20180024095
    Abstract: An aqueous liquid medium for analyzing, purifying or separating species in an element having walls or for treating the walls of an element. The medium includes at least a polymer consisting of several polymeric segments. The polymer is of the irregular block-copolymer or irregular comb-like polymer type and has on the average at least three junction points between polymeric segments of different chemical or topological nature. The medium may be used in methods for analyzing, purifying or separating species and methods for treating an element to be contacted with a fluid and/or species contained in the fluid during preservation, transport, analysis, purification or separation of the fluid.
    Type: Application
    Filed: May 8, 2017
    Publication date: January 25, 2018
    Applicants: INSTITUTE CURIE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N. R.S.)
    Inventors: Jean-Louis VIOVY, Valessa BARBIER
  • Patent number: 9840636
    Abstract: A straight, branched or cross-linked polymer, including, per 100 mol %: a) a mole fraction from 75% to 99.95% of monomer units from an N,N-dialkyl acrylamide; b) a mole fraction from 0.05% to 1% of monomer units from a monomer of formula (I): CH2=C(Ri)-C(?O)—O—[(CH2-CH(R2)-O]n-R3 (I); c) optionally a mole fraction higher than 0% to 24% either of monomer units from a monomer including a free strong acid function, partially or totally salified, or of monomer units from a monomer of formula (II): CH2=C(R4)-C(?O)—Y—(CH2)m-N(R5)(R6) (II); d) optionally a mole fraction higher than 0% to 1% of a diethylene or polyethylene cross-linking monomer. Also, a method for treating a surface made of a hydrophobic material, using the polymer, and an aqueous, hydro-organic or organic solution including the polymer for modifying interactions between the species contained the solution and the hydrophobic surface.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: December 12, 2017
    Assignees: SOCIETE D'EXPLOITATION DE PRODUITS POUR LES INDUSTRIES CHIMIQUES SEPPIC, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT CURIE, UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6)
    Inventors: Jean-Louis Viovy, Olivier Braun
  • Publication number: 20170335364
    Abstract: 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: Application
    Filed: October 23, 2015
    Publication date: November 23, 2017
    Inventors: Jean-Louis Viovy, Stephanie Descroix, Laurent Malaquin, Iago Pereiro, Lucile Alexandre
  • Patent number: 9744513
    Abstract: A method for encapsulating or sorting colloidal objects, comprising the step of flowing said objects in a first flow stream partly or fully surrounded by at least one second flow stream in a channel comprising a narrow strait, wherein along an elongated part of the path of said first flow stream either (a) the bidimensional size of said first flow stream is smaller than the largest bidimensional size of at least some of said objects, either (b) the smallest unidimensional size of said first flow stream is smaller than the largest unidimensional size of at least some of said objects, either (c) said first flow stream is splitting, in the absence of said objects, into droplets with a volume smaller than the volume of at least some of said objects, or (d) said first flow stream would have in the absence of said particles, a shape that cannot entirely encompass some of said objects.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: August 29, 2017
    Inventors: Jean-Louis Viovy, Max Chabert
  • Publication number: 20170173584
    Abstract: A microfluidic device for performing physical, chemical or biological treatment to at least one packet without contamination.
    Type: Application
    Filed: December 28, 2016
    Publication date: June 22, 2017
    Applicants: INSTITUT CURIE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Louis VIOVY, Max CHABERT, Kevin DORFMAN
  • Patent number: 9658189
    Abstract: An aqueous liquid medium for analyzing, purifying or separating species in an element having walls or for treating the walls of an element. The medium includes at least a polymer consisting of several polymeric segments. The polymer is of the irregular block-copolymer or irregular comb-like polymer type and has on the average at least three junction points between polymeric segments of different chemical or topological nature. The medium may be used in methods for analyzing, purifying or separating species and methods for treating an element to be contacted with a fluid and/or species contained in the fluid during preservation, transport, analysis, purification or separation of the fluid.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: May 23, 2017
    Assignees: Institute Curie, Centre National de la Recherche Scientifique (C.N.R.S)
    Inventors: Jean-Louis Viovy, Valessa Barbier