Patents by Inventor George B. Sigal
George B. Sigal 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: 20210339243Abstract: We describe assay modules (e.g., assay plates, cartridges, multi-well assay plates, reaction vessels, etc.), processes for their preparation, and method of their use for conducting assays. Reagents may be present in free form or supported on solid phases including the surfaces of compartments (e.g., chambers, channels, flow cells, wells, etc.) in the assay modules or the surface of colloids, beads, or other particulate supports. In particular, dry reagents can be incorporated into the compartments of these assay modules and reconstituted prior to their use in accordance with the assay methods. A desiccant material may be used to maintain and stabilize these reagents in a dry state.Type: ApplicationFiled: July 16, 2021Publication date: November 4, 2021Inventors: Eli N. GLEZER, Bandele Jeffrey-Coker, Jeffery D. Debad, Sudeep M. Kumar, George B. Sigal, Bisbert Spieles, Michael Tsionsky, Michael Warnock
-
Patent number: 11065615Abstract: We describe assay modules (e.g., assay plates, cartridges, multi-well assay plates, reaction vessels, etc.), processes for their preparation, and method of their use for conducting assays. Reagents may be present in free form or supported on solid phases including the surfaces of compartments (e.g., chambers, channels, flow cells, wells, etc.) in the assay modules or the surface of colloids, beads, or other particulate supports. In particular, dry reagents can be incorporated into the compartments of these assay modules and reconstituted prior to their use in accordance with the assay methods. A desiccant material may be used to maintain and stabilize these reagents in a dry state.Type: GrantFiled: January 29, 2018Date of Patent: July 20, 2021Assignee: MESO SCALE TECHNOLOGIES, LLCInventors: Eli N. Glezer, Bandele Jeffrey-Coker, Jeffery D. Debad, Sudeep M. Kumar, George B. Sigal, Gisbert Spieles, Michael Tsionsky, Michael Warnock
-
Publication number: 20180154353Abstract: We describe assay modules (e.g., assay plates, cartridges, multi-well assay plates, reaction vessels, etc.), processes for their preparation, and method of their use for conducting assays. Reagents may be present in free form or supported on solid phases including the surfaces of compartments (e.g., chambers, channels, flow cells, wells, etc.) in the assay modules or the surface of colloids, beads, or other particulate supports. In particular, dry reagents can be incorporated into the compartments of these assay modules and reconstituted prior to their use in accordance with the assay methods. A desiccant material may be used to maintain and stabilize these reagents in a dry state.Type: ApplicationFiled: January 29, 2018Publication date: June 7, 2018Inventors: Eli N. GLEZER, Bandele JEFFREY-COKER, Jeffery D. DEBAD, Sudeep M. KUMAR, George B. SIGAL, Gisbert SPIELES, Michael TSIONSKY, Michael WARNOCK
-
Patent number: 9878323Abstract: We describe assay modules (e.g., assay plates, cartridges, multi-well assay plates, reaction vessels, etc.), processes for their preparation, and method of their use for conducting assays. Reagents may be present in free form or supported on solid phases including the surfaces of compartments (e.g., chambers, channels, flow cells, wells, etc.) in the assay modules or the surface of colloids, beads, or other particulate supports. In particular, dry reagents can be incorporated into the compartments of these assay modules and reconstituted prior to their use in accordance with the assay methods. A desiccant material may be used to maintain and stabilize these reagents in a dry state.Type: GrantFiled: October 29, 2012Date of Patent: January 30, 2018Assignee: MESO SCALE TECHNOLOGIES, LLCInventors: Eli N. Glezer, Bandele Jeffrey-Coker, Jeffery D. Debad, Sudeep M. Kumar, George B. Sigal, Gisbert Spieles, Michael Tsionsky, Michael Warnock
-
Publication number: 20160370359Abstract: A method and apparatus for performing electrochemiluminescence assays are presented. In exemplary embodiments of the present invention an apparatus comprises an ECL-inactive electrode surface having a first assay-ligand immobilized thereon and an ECL-active microparticle having a second assay ligand immobilized thereon. In exemplary embodiments of the present invention a method comprises (a) forming a mixture comprising an electrochemiluminescent label and a microparticle having a first assay-ligand immobilized thereon, (b) applying electrochemical energy to an electrode surface in the presence of said mixture, and (c) measuring emitted electrochemiluminescence, where the microparticle is ECL-active and where the electrode surface is ECL-inactive when electrochemical energy is applied to it in the presence of said mixture.Type: ApplicationFiled: September 2, 2016Publication date: December 22, 2016Inventors: George B. SIGAL, Jacob N. WOHLSTADTER, Satyanarayana GUDIBANDE, Mark T. MARTIN, James L. WILBUR
-
Patent number: 9448235Abstract: A method and apparatus for performing electrochemiluminescence assays are presented. In exemplary embodiments of the present invention an apparatus comprises an ECL-inactive electrode surface having a first assay-ligand immobilized thereon and an ECL-active microparticle having a second assay ligand immobilized thereon. In exemplary embodiments of the present invention a method comprises (a) forming a mixture comprising an electrochemiluminescent label and a microparticle having a first assay-ligand immobilized thereon, (b) applying electrochemical energy to an electrode surface in the presence of said mixture, and (c) measuring emitted electrochemiluminescence, where the microparticle is ECL-active and where the electrode surface is ECL-inactive when electrochemical energy is applied to it in the presence of said mixture.Type: GrantFiled: November 23, 2009Date of Patent: September 20, 2016Assignee: MESO SCALE TECHNOLOGIES LLC.Inventors: George B. Sigal, Jacob N. Wohlstadter, Satyanarayana Gudibande, Mark T. Martin, James L. Wilbur
-
Publication number: 20140274805Abstract: Materials and Methods are provided for producing patterned multi-array, multi-specific surfaces for use in diagnostics. The invention provides for electrochemiluminescence methods for detecting or measuring an analyte of interest. It also provides for novel electrodes for ECL assays. Materials and methods are provided for the chemical and/or physical control of conducting domains and reagent deposition for use multiply specific testing procedures.Type: ApplicationFiled: April 10, 2014Publication date: September 18, 2014Applicant: MESO SCALE TECHNOLOGIES LLCInventors: Jacob N. WOHLSTADTER, James L. WILBUR, George B. SIGAL, Mark T. MARTIN, Liang-Hong GUO, Alan FISCHER, Jon LELAND, Mark A. BILLADEAU, Larry R. HELMS, Ramin DARVARI
-
Patent number: 8722323Abstract: Materials and methods are provided for producing patterned multi-array, multi-specific surfaces for use in diagnostics. The invention provides for electrochemiluminescence methods for detecting or measuring an analyte of interest. It also provides for novel electrodes for ECL assays. Materials and methods are provided for the chemical and/or physical control of conducting domains and reagent deposition for use multiply specific testing procedures.Type: GrantFiled: November 2, 2010Date of Patent: May 13, 2014Assignee: Meso Scale Technologies LLPInventors: Jacob N. Wohlstadter, James L. Wilbur, George B. Sigal, Mark T. Martin, Liang-Hong Guo, Alan Fischer, Jon Leland, Mark A. Billadeau, Larry R. Helms, Ramin Darvari
-
Patent number: 8541174Abstract: Materials and methods are provided for producing patterned multi-array, multi-specific surfaces for use in diagnostics. The invention provides for electrochemiluminescence methods for detecting or measuring an analyte of interest. It also provides for novel electrodes for ECL assays. Materials and methods are provided for the chemical and/or physical control of conducting domains and reagent deposition for use multiply specific testing procedures.Type: GrantFiled: December 14, 2005Date of Patent: September 24, 2013Assignee: Meso Scale Technologies, LLCInventors: Jacob N. Wohlstadter, James L. Wilbur, George B. Sigal, Mark T. Martin, Liang-Hong Guo, Alan Fischer, Jon Leland, Mark A. Billadeau
-
Publication number: 20110124116Abstract: Materials and methods are provided for producing patterned multi-array, multi-specific surfaces for use in diagnostics. The invention provides for electrochemiluminescence methods for detecting or measuring an analyte of interest. It also provides for novel electrodes for ECL assays. Materials and methods are provided for the chemical and/or physical control of conducting domains and reagent deposition for use multiply specific testing procedures.Type: ApplicationFiled: November 2, 2010Publication date: May 26, 2011Applicant: MESO SCALE TECHNOLOGY LLPInventors: Jacob N. WOHLSTADTER, James L. Wilbur, George B. Sigal, Mark T. Martin, Liang-Hong Guo, Alan Fischer, Jon Leland, Mark A. Billadeau, Larry R. Helms, Ramin Darvari
-
Publication number: 20100140086Abstract: A method and apparatus for performing electrochemiluminescence assays are presented. In exemplary embodiments of the present invention an apparatus comprises an ECL-inactive electrode surface having a first assay-ligand immobilized thereon and an ECL-active microparticle having a second assay ligand immobilized thereon. In exemplary embodiments of the present invention a method comprises (a) forming a mixture comprising an electrochemiluminescent label and a microparticle having a first assay-ligand immobilized thereon, (b) applying electrochemical energy to an electrode surface in the presence of said mixture, and (c) measuring emitted electrochemiluminescence, where the microparticle is ECL-active and where the electrode surface is ECL-inactive when electrochemical energy is applied to it in the presence of said mixture.Type: ApplicationFiled: November 23, 2009Publication date: June 10, 2010Applicant: MESO SCALE TECHNOLOGIES, LLCInventors: George B. Sigal, Jacob N. Wohlstadter, Satyanarayana Gudibande, Mark T. Martin, James L. Wilbur
-
Patent number: 7682788Abstract: A method and apparatus for performing electrochemiluminescence assays are presented. In exemplary embodiments of the present invention an apparatus comprises an ECL-inactive electrode surface having a first assay-ligand immobilized thereon and an ECL-active microparticle having a second assay ligand immobilized thereon. In exemplary embodiments of the present invention a method comprises (a) forming a mixture comprising an electrochemiluminescent label and a microparticle having a first assay-ligand immobilized thereon, (b) applying electrochemical energy to an electrode surface in the presence of said mixture, and (c) measuring emitted electrochemiluminescence, where the microparticle is ECL-active and where the electrode surface is ECL-inactive when electrochemical energy is applied to it in the presence of said mixture.Type: GrantFiled: July 2, 2004Date of Patent: March 23, 2010Assignee: Meso Scale Technologies, LLCInventors: George B. Sigal, Jacob N. Wohlstadter, Satyanarayana Gudibande, Mark T. Martin, James L. Wilbur
-
Patent number: 6846629Abstract: Microparticles comprising a core and electrochemiluminescent moieties within the core and methods of using the same in assays.Type: GrantFiled: June 29, 2001Date of Patent: January 25, 2005Assignee: MesoScale Technologies, LLC.Inventors: George B. Sigal, Jacob N. Wohlstadter, Satyanarayana Gudibande, Mark T. Martin, James L. Wilbur
-
Publication number: 20040259148Abstract: A method and apparatus for performing electrochemiluminescence assays are presented. In exemplary embodiments of the present invention an apparatus comprises an ECL-inactive electrode surface having a first assay-ligand immobilized thereon and an ECL-active microparticle having a second assay ligand immobilized thereon. In exemplary embodiments of the present invention a method comprises (a) forming a mixture comprising an electrochemiluminescent label and a microparticle having a first assay-ligand immobilized thereon, (b) applying electrochemical energy to an electrode surface in the presence of said mixture, and (c) measuring emitted electrochemiluminescence, where the microparticle is ECL-active and where the electrode surface is ECL-inactive when electorchemical energy is aplied to it in the presence of said mixture.Type: ApplicationFiled: July 2, 2004Publication date: December 23, 2004Inventors: George B. Sigal, Jacob N. Wohlstadter, Satyanarayana Gudibande, Mark T. Martin, James L. Wilbur
-
Patent number: 6808939Abstract: Bipyridine or phenanthroline ligands presenting functional groups that prevent non-specific binding (in particular, negatively charged functional groups that are unaffected by standard conditions for conjugating biological reagents through amide bonds) are described as are luminescent metal complexes comprising these ligands. The use of luminescent ruthenium and osmium complexes comprising these ligands in electrochemiluminescence assays shows that the use of these labels can significantly reduce the amount of non-specific binding observed relative to assays carried out using reagents labeled with analogous labels that don't present functional groups that decrease non-specific binding.Type: GrantFiled: June 29, 2001Date of Patent: October 26, 2004Assignees: IGEN International, Inc., BioVeris CorporationInventors: George B. Sigal, Howie Tjiong, Liwen Dong, Md. Athar Masood, Richard C. Titmas
-
Patent number: 6809196Abstract: An article suitable for use as a biosensor includes a molecule of a formula X—R—Ch adhered to a surface of the article as part of a self-assembled monolayer. X is a functionality that adheres to the surface, R is a spacer moiety, and Ch is a chelating agent. A metal ion can be coordinated by the chelating agent, and a polyamino acid-tagged biological binding partner of a target biological molecule coordinated to the metal ion. A method of the invention involves bringing the article into contact with a medium containing or suspected of containing the target biological molecule and allowing the biological molecule to biologically bind to the binding partner. The article is useful particularly as a surface plasmon resonance chip.Type: GrantFiled: July 25, 2001Date of Patent: October 26, 2004Assignee: President and Fellows of Harvard CollegeInventors: Cynthia C. Bamdad, George B. Sigal, Jack L. Strominger, George M. Whitesides
-
Patent number: 6673542Abstract: A method for assaying a sample for a nucleic acid damaging activity using at least one singular double-stranded nucleic acid with at least one electrochemiluminescent label, and a method for measuring an inhibitor of a nucleic acid damaging activity with at least one singular double-stranded nucleic acid using at least one electrochemiluminescent label, are disclosed.Type: GrantFiled: March 7, 2001Date of Patent: January 6, 2004Assignee: IGEN International Inc.Inventors: Jeffrey A. Heroux, George B. Sigal, Reid W. von Borstel
-
Publication number: 20030027357Abstract: Bipyridine or phenanthroline ligands presenting functional groups that prevent non-specific binding (in particular, negatively charged functional groups that are unaffected by standard conditions for conjugating biological reagents through amide bonds) are described as are luminescent metal complexes comprising these ligands. The use of luminescent ruthenium and osmium complexes comprising these ligands in electrochemiluminescence assays shows that the use of these labels can significantly reduce the amount of non-specific binding observed relative to assays carried out using reagents labeled with analogous labels that don't present functional groups that decrease non-specific binding.Type: ApplicationFiled: June 29, 2001Publication date: February 6, 2003Inventors: George B. Sigal, Howard Isaac Tjiong, Liwen Dong, Athar Masood, Richard C. Titmas
-
Publication number: 20030003460Abstract: The present invention relates to methods, reagents and compositions for conducting electrochemiluminescence binding assays which improve one or more characteristics of the assay or the instruments used to conduct the assay. The method is achieved using microparticles that include electrically conductive material. The electrically conductive material has one or more copies of an assay ligand immobilized an its outer surface and a plurality of electrochemiluminescent moieties immobilized an its outer surface. The assay ligand may be linked to the electrochemiluminescent moiety.Type: ApplicationFiled: June 29, 2001Publication date: January 2, 2003Applicant: Meso Scale Technology LLPInventors: George B. Sigal, Jacob N. Wohlstadter, Satyanarayana Gudibande, Mark T. Martin, James L. Wilbur
-
Publication number: 20020164593Abstract: A method for assaying a sample for a nucleic acid damaging activity using at least one singular double-stranded nucleic acid with at least one electrochemiluminescent label, and a method for measuring an inhibitor of a nucleic acid damaging activity with at least one singular double-stranded nucleic acid using at least one electrochemiluminescent label, are disclosed.Type: ApplicationFiled: March 7, 2001Publication date: November 7, 2002Applicant: IGEN International, Inc.Inventors: Jeffrey A. Heroux, George B. Sigal, Reid W. von Borstel