Patents by Inventor Narayanan Selvapalam

Narayanan Selvapalam 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: 9073972
    Abstract: Provided is a method of separating cellular components, the method including: a) contacting a guest compound-bound reactive compound with cells; b) lysing the cells; c) adding a host compound-bound solid phase to a solution including the lysates of the cells to prepare a mixture; d) separating binding pairs of the guest compound bound to cellular components and the host compound bound to the solid phase from the mixture, and purifying the binding pairs; and e) separating the cellular components from the binding pairs, wherein the guest compound-bound reactive compound is obtained through a covalent bond between a reactive compound and a guest compound represented by Formula 2 below guest, the host compound-bound solid phase is obtained through a covalent bond between a solid phase and a host compound represented by Formula 1 below, and the reactive compound includes at least one selected from the group consisting of a biomolecule, N-hydroxysuccimide, an antigen, an antibody, an aptamer, folic acid, transferri
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: July 7, 2015
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Ki Moon Kim, Don Wook Lee, Sung Ho Ryu, Sang Hoon Ha, Hyun Tae Jung, Banerjee Mainak, Narayanan Selvapalam, Kyeng Min Park
  • Patent number: 8513409
    Abstract: Inverted cucurbituril compounds having at least one pair of hydrogen atoms protruding into an internal molecular cavity thereof.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: August 20, 2013
    Assignees: University of Maryland, Pohang University of Science and Technology
    Inventors: Kimoon Kim, Sang-Kyu Park, Young Ho Ko, Hyunuk Kim, Youngkook Kim, Narayanan Selvapalam, Lyle David Isaacs, Simin Liu
  • Patent number: 8168436
    Abstract: The present invention provides a method for quantifying a peptide compound having a phenylalanine residue at the N-terminal, comprising measuring the content of heat generated by mixing 1) a peptide compound having a phenylalanine residue at the N-terminal, 2) cucurbit[7]uril, and 3) a metal ion in a solution.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: May 1, 2012
    Assignee: Japan Science and Technology Agency
    Inventors: Yoshihisa Inoue, Mikhail Rekharsky, Kimoon Kim, Yong Ho Ko, Narayanan Selvapalam
  • Patent number: 8058451
    Abstract: Provided are hydroxycucurbituril derivatives, their preparation methods and uses. The hydroxycucurbituril derivative is easy to further functionalize with enhanced solubility in common solvents, thereby providing wider applications.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: November 15, 2011
    Assignee: Postech Foundation
    Inventors: Ki-Moon Kim, Sang-Yong Jon, Narayanan Selvapalam, Dong-Hyun Oh
  • Patent number: 8002987
    Abstract: Provided are a stationary phase and a column using a cucurbituril-bound silica gel, and a method of separating taxane using the column. The taxane separation method includes: preparing a column for taxane separation, the column being packed with a stationary phase including a cucurbituril-bound silica gel in which a cucurbituril represented by Formula 1 or 2 is covalently bound to a modified silica gel represented by Formula 3; dissolving a taxane powder in a solvent to prepare a taxane-containing solution; applying the taxane-containing solution to the column; supplying a mobile-phase solvent to the column to obtain a taxane extract from the column; and purifying taxane from the taxane extract. Therefore, highly purified taxane can be separated from a low-purity crude taxane extract.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: August 23, 2011
    Assignee: Postech Academy-Industry Foundation
    Inventors: Kimoon Kim, Kyeng-Min Park, Young-Ho Ko, Narayanan Selvapalam, Erumaipatty R Nagarajan
  • Patent number: 7993929
    Abstract: The present invention provides a method for determining in a pharmaceutical test formulation the presence or absence of a peptide compound PYY3-36 represented by the following amino acid sequence: H-Ile-Lys-Pro-Glu-Ala-Pro-Gly-Glu-Asp-Ala-Ser-Pro-Glu-Glu-Leu-Asn-Arg-Tyr-Tyr-Ala-Ser-Leu-Arg-His-Tyr-Leu-Asn-Leu-Val-Thr-Arg-Gln-Arg-Tyr-X (SEQ ID NO: 1), wherein X is OH or a carboxy acid-protecting group, the method comprising (1) preparing a solution by mixing the pharmaceutical test formulation with cucurbit[7]uril in a solvent; and (2) thermally analyzing the solution prepared in Step (1).
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: August 9, 2011
    Assignee: Japan Science and Technology Agency
    Inventors: Yoshihisa Inoue, Mikhail Rekharsky, Kimoon Kim, Yong Ho Ko, Narayanan Selvapalam
  • Publication number: 20110092680
    Abstract: Provided is a method of separating cellular components, the method including: a) contacting a guest compound-bound reactive compound with cells; b) lysing the cells; c) adding a host compound-bound solid phase to a solution including the lysates of the cells to prepare a mixture; d) separating binding pairs of the guest compound bound to cellular components and the host compound bound to the solid phase from the mixture, and purifying the binding pairs; and e) separating the cellular components from the binding pairs, wherein the guest compound-bound reactive compound is obtained through a covalent bond between a reactive compound and a guest compound represented by Formula 2 below guest, the host compound-bound solid phase is obtained through a covalent bond between a solid phase and a host compound represented by Formula 1 below, and the reactive compound includes at least one selected from the group consisting of a biomolecule, N-hydroxysuccimide, an antigen, an antibody, an aptamer, folic acid, transferri
    Type: Application
    Filed: April 15, 2009
    Publication date: April 21, 2011
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Ki Moon Kim, Don Wook Lee, Sung Ho Ryu, Sang Hoon Ha, Hyun Tae Jung, Banerjee Mainak, Narayanan Selvapalam, Kyeng Min Park
  • Patent number: 7850992
    Abstract: Provided are a gel including a compound represented by Formula 1 below and a method of preparing the same: wherein n, X, A1, and A2 are as defined in the specification.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: December 14, 2010
    Assignees: Postech Academy-Industry Foundation, Postech Foundation
    Inventors: Kimoon Kim, II Ha Hwang, Woo Sung Jeon, Hee Joon Kim, Dongwoo Kim, Narayanan Selvapalam, Erumaipatty R. Nagarajan
  • Publication number: 20100281957
    Abstract: The present invention provides a method for determining in a pharmaceutical test formulation the presence or absence of a peptide compound PYY3-36 represented by the following amino acid sequence: H-Ile-Lys-Pro-Glu-Ala-Pro-Gly-Glu-Asp-Ala-Ser-Pro-Glu-Glu-Leu-Asn-Arg-Tyr-Tyr-Ala-Ser-Leu-Arg-His-Tyr-Leu-Asn-Leu-Val-Thr-Arg-Gln-Arg-Tyr-X (SEQ ID NO: 1), wherein X is OH or a carboxy acid-protecting group, the method comprising (1) preparing a solution by mixing the pharmaceutical test formulation with cucurbit[7]uril in a solvent; and (2) thermally analyzing the solution prepared in Step (1).
    Type: Application
    Filed: October 25, 2007
    Publication date: November 11, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yoshihisa Inoue, Mikhail Rekharsky, Kimoon Kim, Yong Ho Ko, Narayanan Selvapalam
  • Patent number: 7829698
    Abstract: Provided are nanoparticles prepared by the aggregation of cucurbituril derivatives and having a particle size of 1 to 1,000 nm, a pharmaceutical composition in which a pharmaceutically active substance is loaded into the nanoparticles, and preparation methods thereof.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: November 9, 2010
    Assignee: Postech Foundation
    Inventors: Kimoon Kim, Sang Yong Jon, Young Jin Jeon, Dong Hyun Oh, Narayanan Selvapalam
  • Publication number: 20100238969
    Abstract: The present invention provides a method for quantifying a peptide compound having a phenylalanine residue at the N-terminal, comprising measuring the content of heat generated by mixing 1) a peptide compound having a phenylalanine residue at the N-terminal, 2) cucurbit[7]uril, and 3) a metal ion in a solution.
    Type: Application
    Filed: October 23, 2007
    Publication date: September 23, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yoshihisa Inoue, Mikhail Rekharsky, Kimoon Kim, Yong Ho Ko, Narayanan Selvapalam
  • Patent number: 7718128
    Abstract: Provided are a kit including a first component that is a compound of formula (1) below bound to a first material and a second component that is a ligand bound to a second material, wherein each of the first and second materials is independently selected from the group consisting of a solid phase, a biomolecule, an antioxidant, a chemical therapeutic agent, an anti-histaminic agent, a cucurbituril dendrimer, a cyclodextrin derivative, a crown ether derivative, a calixarene derivative, a cyclophane derivative, a cyclic peptide derivative, a metallic ion, a chromophore, a fluorescent material, a phosphor, a radioactive material, and a catalyst; and the ligand can non-covalently bind to the compound of formula (1); a method of separating and purifying a material bound to a ligand using the compound of formula (1) bound to a solid phase; a method of separating and purifying the compound of formula (1) or a material bound to the compound using a ligand bound to a solid phase; a sensor chip including a compound of f
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 18, 2010
    Assignee: Postech Foundation
    Inventors: Kimoon Kim, Kangkyun Baek, Jeeyeon Kim, Ilha Hwang, Young Ho Ko, Narayanan Selvapalam, Erumaipatty R. Nagarajan, Kyeng Min Park
  • Publication number: 20100009453
    Abstract: The present invention provides a method for determining in a pharmaceutical test formulation the presence or absence of a peptide compound PYY3-36 represented by the following amino acid sequence: H-Ile-Lys-Pro-Glu-Ala-Pro-Gly-Glu-Asp-Ala-Ser-Pro-Glu-Glu-Leu-Asn-Arg-Tyr-Tyr-Ala-Ser-Leu-Arg-His-Tyr-Leu-Asn-Leu-Val-Thr-Arg-Gln-Arg-Tyr-X (SEQ ID NO: 1), wherein X is OH or a carboxy acid-protecting group, the method comprising (1) preparing a solution by mixing the pharmaceutical test formulation with cucurbit[7]uril in a solvent; and (2) thermally analyzing the solution prepared in Step (1).
    Type: Application
    Filed: May 11, 2009
    Publication date: January 14, 2010
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yoshihisa INOUE, Mikhail REKHARSKY, Kimoon KIM, Yong Ho KO, Narayanan SELVAPALAM
  • Publication number: 20100010215
    Abstract: Inverted cucurbituril compounds having at least one pair of hydrogen atoms protruding into an internal molecular cavity thereof.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 14, 2010
    Applicant: THE UNIVERSITY OF MARYLAND
    Inventors: Lyle David Isaacs, Simin Liu, Kimoon Kim, Sang-Kyu Park, Young Ho Ko, Hyunuk Kim, Youngkook Kim, Narayanan Selvapalam
  • Publication number: 20090095677
    Abstract: Provided are a kit including a first component that is a compound of formula (1) below bound to a first material and a second component that is a ligand bound to a second material, wherein each of the first and second materials is independently selected from the group consisting of a solid phase, a biomolecule, an antioxidant, a chemical therapeutic agent, an anti-histaminic agent, a cucurbituril dendrimer, a cyclodextrin derivative, a crown ether derivative, a calixarene derivative, a cyclophane derivative, a cyclic peptide derivative, a metallic ion, a chromophore, a fluorescent material, a phosphor, a radioactive material, and a catalyst; and the ligand can non-covalently bind to the compound of formula (1); a method of separating and purifying a material bound to a ligand using the compound of formula (1) bound to a solid phase; a method of separating and purifying the compound of formula (1) or a material bound to the compound using a ligand bound to a solid phase; a sensor chip including a compound of f
    Type: Application
    Filed: December 19, 2008
    Publication date: April 16, 2009
    Applicants: POSTECH FOUNDATION, POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Kimoon KIM, Kangkyun Baek, Jeeyeon Kim, Ilha Hwang, Young Ho Ko, Narayanan Selvapalam, Erumaipatty R. Nagarajan, Kyeng Min Park
  • Patent number: 7479254
    Abstract: Provided are a kit including a first component that is a compound of formula (1) below bound to a first material and a second component that is a ligand bound to a second material, wherein each of the first and second materials is independently selected from the group consisting of a solid phase, a biomolecule, an antioxidant, a chemical therapeutic agent, an anti-histaminic agent, a cucurbituril dendrimer, a cyclodextrin derivative, a crown ether derivative, a calixarene derivative, a cyclophane derivative, a cyclic peptide derivative, a metallic ion, a chromophore, a fluorescent material, a phosphor, a radioactive material, and a catalyst; and the ligand can non-covalently bind to the compound of formula (1); a method of separating and purifying a material bound to a ligand using the compound of formula (1) bound to a solid phase; a method of separating and purifying the compound of formula (1) or a material bound to the compound using a ligand bound to a solid phase; a sensor chip including a compound of f
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: January 20, 2009
    Assignees: Postech Foundation, Postech Academy-Industry Foundation
    Inventors: Kimoon Kim, Kangkyun Baek, Jeeyeon Kim, Iiha Hwang, Young Ho Ko, Narayanan Selvapalam, Erumaipatty R. Nagarajan, Kyeng Min Park
  • Publication number: 20080290028
    Abstract: Provided are a stationary phase and a column using a cucurbituril-bound silica gel, and a method of separating taxane using the column. The taxane separation method includes: preparing a column for taxane separation, the column being packed with a stationary phase including a cucurbituril-bound silica gel in which a cucurbituril represented by Formula 1 or 2 is covalently bound to a modified silica gel represented by Formula 3; dissolving a taxane powder in a solvent to prepare a taxane-containing solution; applying the taxane-containing solution to the column; supplying a mobile-phase solvent to the column to obtain a taxane extract from the column; and purifying taxane from the taxane extract. Therefore, highly purified taxane can be separated from a low-purity crude taxane extract.
    Type: Application
    Filed: March 24, 2006
    Publication date: November 27, 2008
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Kimoon Kim, Young-Ho Ko, Kyeng-Min Park, Narayanan Selvapalam, Erumaipatty R. Nagarajan
  • Publication number: 20080279950
    Abstract: Provided are nanoparticles prepared by the aggregation of cucurbituril derivatives and having a particle size of 1 to 1,000 nm, a pharmaceutical composition in which a pharmaceutically active substance is loaded into the nanoparticles, and preparation methods thereof.
    Type: Application
    Filed: July 18, 2008
    Publication date: November 13, 2008
    Applicant: POSTECH FOUNDATION
    Inventors: Kimoon KIM, Sang Yong JON, Young Jin JEON, Dong Hyun OH, Narayanan SELVAPALAM
  • Publication number: 20080264433
    Abstract: Provided is a cucurbituril-containing tobacco. The cucurbituril-containing tobacco includes a cucurbituril represented by Formula 1. The cucurbituril-containing tobacco can produce a reduced amount of harmful substances.
    Type: Application
    Filed: March 9, 2006
    Publication date: October 30, 2008
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Kimoon Kim, Kyeng-Min Park, Young-Ho Ko, Narayanan Selvapalam
  • Publication number: 20080260676
    Abstract: Provided are hydroxycucurbituril derivatives, their preparation methods and uses. The hydroxycucurbituril derivative is easy to further functionalize with enhanced solubility in common solvents, thereby providing wider applications.
    Type: Application
    Filed: June 13, 2008
    Publication date: October 23, 2008
    Applicant: POSTECH FOUNDATION
    Inventors: Kimoon KIM, Sang Yong JON, Narayanan SELVAPALAM, Dong Hyun OH