Patents by Inventor Brinda Lakshmi

Brinda Lakshmi 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: 20070281369
    Abstract: Detection systems and methods for detecting target biological analytes within sample material using acousto-mechanical energy generated by a sensor are disclosed. The acousto-mechanical energy may be provided using an acousto-mechanical sensor, e.g., a surface acoustic wave sensor such as, e.g., a shear horizontal surface acoustic wave sensor (e.g., a LSH-SAW sensor). A variety of techniques for modifying the effective mass of the target biological analytes in sample material are disclosed, including fractionating or disassembling the target biological analytes in the sample material (e.g., lysing the target biological analyte), adding a detectable mass to the target biological analyte or enhancing coupling of the target biological analyte (e.g., through the use of magnetic particles), exposing the sample material to a reagent that causes a change in at least detectable physical property in the sample material if the target biological analyte is present (e.g.
    Type: Application
    Filed: December 17, 2004
    Publication date: December 6, 2007
    Inventors: Chad Carter, Moses David, Larry Dodge, Michael Free, Samuel Gason, John Huizinga, Raymond Johnston, Brinda Lakshmi, Patrick Mach, Larry Martin
  • Publication number: 20070190662
    Abstract: Acoustic sensors, preferably surface acoustic wave sensors, and more preferably shear horizontal surface acoustic wave sensors that include soluble mixed with oligomers and/or polymers formed from such monomers), or multifunctional compounds, for example, that can function as either waveguide materials, immobilization materials for secondary capture agents (e.g., antibodies), or both.
    Type: Application
    Filed: December 17, 2004
    Publication date: August 16, 2007
    Inventors: John Baetzold, Karl Benson, G. Bommarito, Michael Daniels, Albert Everaerts, Peggy-Jean Flanigan, M. Free, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Lang Nguyen, Rahul Shah, Peter Stark
  • Publication number: 20070154937
    Abstract: Compounds having two reactive functional groups are described that can be used as a tethering compound to immobilize an amine-containing material to a substrate. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonyldicarboximide group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a connector group between the substrate and the amine-containing material. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 5, 2007
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20070065490
    Abstract: Immobilization substrates and tethering compounds compatible with such substrates are described. In one aspect, the invention provides an article comprising: a substrate having a first surface and a second surface; a triazine tethering group affixed to the first surface of the substrate, the triazine tethering group comprising a reaction product of a functional group on the first surface of the substrate with a triazine tethering compound. A method of immobilizing a nucleophile-containing material to a substrate is also described.
    Type: Application
    Filed: December 28, 2004
    Publication date: March 22, 2007
    Inventors: Mark Schaberg, Karen Geahigan, Cary Kipke, Brinda Lakshmi, James Young
  • Publication number: 20070045622
    Abstract: Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: October 27, 2006
    Publication date: March 1, 2007
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20060135783
    Abstract: Multifunctional compounds having acylsulfonamide amine-reactive groups are described that can be used for the capture of amine containing materials.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Karl Benson, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20060134796
    Abstract: Colorimetric sensors for detection of an analyte are disclosed. Methods of using the colorimetric sensor and a kit for the colorimetric detection of an analyte are also disclosed.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 22, 2006
    Inventors: G. Bommarito, Brinda Lakshmi
  • Publication number: 20060135718
    Abstract: Soluble polymers and methods for the preparation thereof, wherein the polymers of the present invention have pendant acylsulfonamide amine-reactive groups that can be used for the capture of amine containing materials.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Karl Benson, G. Bommarito, Albert Everaerts, Brinda Lakshmi, Charles Leir, George Moore, Lang Nguyen, Rahul Shah, Peter Stark
  • Publication number: 20060019330
    Abstract: The invention relates to methods of detecting staphylococcus.
    Type: Application
    Filed: October 7, 2004
    Publication date: January 26, 2006
    Inventors: Brinda Lakshmi, Angela Dillow, M. Free, John Huizinga, Patrick Mach, Dasaratha Sridhar
  • Publication number: 20050227076
    Abstract: Compounds having two reactive functional groups are described that can be used as a tethering compound to immobilize an amine-containing material to a substrate. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonyldicarboximide group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a connector group between the substrate and the amine-containing material. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 12, 2004
    Publication date: October 13, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20050181198
    Abstract: The application discloses methods of plasma treatment that employ an ion sheath in a capacitively-coupled system to increase the hydrophilicity of porous articles, including microporous articles having pore sizes of 0.05 to 1.5 micrometers, both on their surfaces and in their pores such that the articles' bulk wetting properties are improved.
    Type: Application
    Filed: March 18, 2005
    Publication date: August 18, 2005
    Inventors: Moses David, Brinda Lakshmi
  • Publication number: 20050153370
    Abstract: The invention relates to methods of enhancing signal detection of components of cell walls, wherein the methods involve lysing cells to form cell-wall fragments and analyzing the cell-wall fragments.
    Type: Application
    Filed: December 17, 2004
    Publication date: July 14, 2005
    Inventors: Brinda Lakshmi, Patrick Mach, Larry Martin
  • Publication number: 20050142296
    Abstract: Articles and methods for the use of such articles are described for use in immobilizing nucleophile-containing materials. In one aspect, the invention provides an article comprising: a substrate having a first surface and a second surface; and a phosphonitrilic tethering group affixed to the first surface of the substrate, the phosphonitrilic tethering group comprising a reaction product of a complementary functional group on the first surface of the substrate with a phosphonitrilic tethering compound.
    Type: Application
    Filed: July 22, 2004
    Publication date: June 30, 2005
    Inventor: Brinda Lakshmi
  • Publication number: 20050112672
    Abstract: Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 26, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20050106709
    Abstract: Compounds having two reactive functional groups are described that can be used as a tethering compound to immobilize an amine-containing material to a substrate. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonyldicarboximide group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a connector group between the substrate and the amine-containing material. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 19, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20050107615
    Abstract: Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 19, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah