Patents by Inventor Xudong Lou

Xudong Lou 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).

  • Publication number: 20230236105
    Abstract: Described herein are reagents and methods for improving signal in imaging mass cytometry. Aspects include mass tags with a large number of labeling atoms, chemical modifications to mass tags and additional reagents to reduce background and/or maintain target binding of mass tagged specific binding partners (SBPs), and schemes for associating a plurality of mass tags with a single SBP. As such, embodiments include any combination of one or more reagents and their use. The reagents, kits and methods herein may be used for mass cytometry, including imaging mass cytometry. In some aspects, reagents, kits or methods may be used for delivery of a large number of radioisotopes to a target analyte, for example for therapeutic use or radiometric detection. In certain aspects, only non-radioactive isotopes may be used for mass cytometry.
    Type: Application
    Filed: December 18, 2020
    Publication date: July 27, 2023
    Applicant: Standard BioTools Canada Inc.
    Inventors: Bedilu ALLO, Xudong LOU, Peng LIU, Daniel MAJONIS, Anastasia MAVROPOULOS, Ladan GHEIRATMAND
  • Publication number: 20210181186
    Abstract: The present disclosure relates to reagents and their use for elemental imaging mass spectrometry of biological samples.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 17, 2021
    Applicant: Fluidigm Canada Inc.
    Inventors: Olga Ornatsky, Qing Chang, Bedilu Allo, Xudong Lou, Alexander Bouzekri
  • Publication number: 20200362062
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: May 5, 2020
    Publication date: November 19, 2020
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 10752707
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 25, 2020
    Assignee: FLUIDIGM CANADA INC.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Patent number: 10669358
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: June 2, 2020
    Assignee: FLUIDIGM CANADA INC.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20190345272
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: July 9, 2019
    Publication date: November 14, 2019
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Publication number: 20190077890
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: July 27, 2018
    Publication date: March 14, 2019
    Applicant: FLUIDIGM CANADA INC.
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 10072104
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: September 11, 2018
    Assignee: Fluidigm Canada Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Patent number: 9296838
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 29, 2016
    Assignee: Fluidigm Canada, Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20160025731
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Inventors: MITCHELL A. WINNIK, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 9169335
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 27, 2015
    Assignee: Fluidigm Canada, Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20150183895
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: March 16, 2015
    Publication date: July 2, 2015
    Inventors: Mitchell A. Winnik, MARK NITZ, VLADIMIR BARANOV, XUDONG LOU
  • Patent number: 9012239
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Grant
    Filed: May 28, 2007
    Date of Patent: April 21, 2015
    Assignee: Fluidigm Canada Inc.
    Inventors: Mitchell A. Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20080003616
    Abstract: Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
    Type: Application
    Filed: May 28, 2007
    Publication date: January 3, 2008
    Inventors: Mitchell Winnik, Mark Nitz, Vladimir Baranov, Xudong Lou
  • Publication number: 20040144655
    Abstract: Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising the step of electrochemical grafting of an active monomer for forming a primer coating P onto the surface and having as general formula: X0 (meth)acrylate wherein X is either part of a preformed polymer or is an intermediate agent for polyaddition reaction or is an anchoring group for attachment of a molecule having at least one complementary reactive group. Such process allows formation of new primer by one-step electro-grafting of a macromonomer. Such process also allows further modification of an initial electrografted polymer to increase the coating thickness by the grafting-from technique. Such process also allows to graft onto the primer coating compounds like functional polymer, peptide, protein, oligonucleotide, dyes, drugs, anti-bacterian compounds.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 29, 2004
    Inventors: Olivier Bertrand, Robert Jerome, Sandrine Gautier, Veronique Maquet, Christophe Detrembleur, Christine Jerome, Samuel Voccia, Michael Claes, Xudong Lou, David-Emmanuel Labaye