Patents by Inventor Chunnian Shi

Chunnian Shi 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: 8951719
    Abstract: The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: February 10, 2015
    Assignee: Gentegra, LLC.
    Inventors: Michael Hogan, Michael Saghbini, David Wong, Chunnian Shi
  • Publication number: 20140227686
    Abstract: The present invention provides compositions and methods that enable the stabilization and storage of samples by contacting a sample with an assembly of particles, and reducing the water activity level of the contacted sample. By reducing the water activity level of the sample, the assembly of particles minimizes the degradation of the sample. Stabilizers may or may not be added to the assembly of particles to further minimize the degradation of the sample. Subsequently to storage in the assembly of particles, the samples are recoverable by eluting the assembly of particles with a fluid solution. In one embodiment, the entire assembly of particles will dissolve into the solution. In another embodiment, only part of the assembly of particles will dissolve into the solution. The assembly of particles provides the advantage that while it is porous, it comprises non-porous particulate material.
    Type: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: GENTEGRA LLC
    Inventors: Michael Saghbini, Michael Hogan, Chunnian Shi, Brian Dalby, David Wong
  • Publication number: 20120308987
    Abstract: The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 6, 2012
    Applicant: GenVault Corporation
    Inventors: Michael HOGAN, Michael SAGHBINI, Chunnian SHI, David WONG
  • Patent number: 8283165
    Abstract: The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: October 9, 2012
    Assignee: GenVault Corporation
    Inventors: Michael Hogan, Michael Saghbini, Chunnian Shi, David Wong
  • Publication number: 20120100522
    Abstract: The present invention provides compositions and methods that enable the stabilization and storage of samples by contacting a sample with an assembly of particles, and reducing the water activity level of the contacted sample. By reducing the water activity level of the sample, the assembly of particles minimizes the degradation of the sample. Stabilizers may or may not be added to the assembly of particles to further minimize the degradation of the sample. Subsequently to storage in the assembly of particles, the samples are recoverable by eluting the assembly of particles with a fluid solution. In one embodiment, the entire assembly of particles will dissolve into the solution. In another embodiment, only part of the assembly of particles will dissolve into the solution. The assembly of particles provides the advantage that while it is porous, it comprises non-porous particulate material.
    Type: Application
    Filed: April 6, 2011
    Publication date: April 26, 2012
    Applicant: GenVault Corporation
    Inventors: Michael Saghbini, Michael Hogan, Chunnian Shi, Brian Dalby, David Wong
  • Patent number: 7879554
    Abstract: The present disclosure provides methods and compositions for conducting an assay to detect a polynucleotide. In particular, ruthenium complexes having reduction potentials that do not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the polynucleotide that is detected is DNA. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: February 1, 2011
    Assignee: Geneohm Sciences, Inc.
    Inventors: Donald M. Crothers, R. Erik Holmlin, Honghua Zhang, Chunnian Shi
  • Patent number: 7820389
    Abstract: Provided herein are compositions and methods for enhancing the relative efficiency of hybridization between target nucleic acids and capture probes compared to target variants and capture probes.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: October 26, 2010
    Assignee: Geneohm Sciences, Inc.
    Inventor: Chunnian Shi
  • Publication number: 20100248363
    Abstract: The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention.
    Type: Application
    Filed: September 14, 2009
    Publication date: September 30, 2010
    Applicant: GENVAULT CORPORATION
    Inventors: Michael Hogan, Michael Saghbini, David Wong, Chunnian Shi
  • Publication number: 20100167376
    Abstract: The present invention provides methods useful for making lysates from cell wall-containing cellular samples, including plant tissue samples and cultures of yeast or bacteria. The invention further provides compositions (e.g., solutions) that can be used in the methods of the invention, and kits comprising solutions and/or other reagents useful for carrying out the methods of the invention.
    Type: Application
    Filed: October 6, 2009
    Publication date: July 1, 2010
    Applicant: GenVault Corporation
    Inventors: Michael Hogan, Michael Saghbini, Joseph Utermohlen, Chunnian Shi
  • Publication number: 20100018876
    Abstract: The present disclosure provides methods and compositions for conducting an assay to detect a polynucleotide. In particular, ruthenium complexes having reduction potentials that do not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the polynucleotide that is detected is DNA. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed.
    Type: Application
    Filed: September 29, 2009
    Publication date: January 28, 2010
    Applicant: GeneOhm Sciences
    Inventors: Donald M. Crothers, R. Erik Holmlin, Honghua Zhang, Chunnian Shi
  • Patent number: 7615348
    Abstract: The present disclosure provides methods and compositions for conducting an assay to detect a polynucleotide. In particular, ruthenium complexes having reduction potentials that do not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the polynucleotide that is detected is DNA. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: November 10, 2009
    Assignee: Genohm Sciences
    Inventors: Donald M. Crothers, R. Erik Holmlin, Honghua Zhang, Chunnian Shi
  • Publication number: 20080188005
    Abstract: Provided herein are compositions and methods for enhancing the relative efficiency of hybridization between target nucleic acids and capture probes compared to target variants and capture probes.
    Type: Application
    Filed: January 4, 2008
    Publication date: August 7, 2008
    Inventor: Chunnian Shi
  • Publication number: 20080026397
    Abstract: The present disclosure provides methods and compositions for conducting an assay to detect a polynucleotide. In particular, ruthenium complexes having reduction potentials that do not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the polynucleotide that is detected is DNA. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed.
    Type: Application
    Filed: August 8, 2007
    Publication date: January 31, 2008
    Applicant: GeneOhm Sciences
    Inventors: Donald Crothers, R. Holmlin, Honghua Zhang, Chunnian Shi
  • Patent number: 7258978
    Abstract: The present disclosure provides methods and compositions for conducting an assay to detect nucleic acid hybridization in the presence of oxygen. In particular, ruthenium complexes having a reduction potential that does not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the nucleic acid hybridization event that is detected is DNA hybridization. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: August 21, 2007
    Assignee: Geneohm Sciences
    Inventors: Donald M. Crothers, R. Erik Holmlin, Honghua Zhang, Chunnian Shi
  • Publication number: 20050186590
    Abstract: The present disclosure relates to methods of detecting nucleic acid hybridization by monitoring an output signal. Some advantageous embodiments include techniques which can augment the signal. One such technique involves catalytic detection, such as with a peroxidase or other enzyme. Another technique involves “on-chip” amplification to enlarge the nucleic acid after hybridization has occurred.
    Type: Application
    Filed: November 10, 2004
    Publication date: August 25, 2005
    Inventors: Donald Crothers, R. Holmlin, Honghua Zhang, Chunnian Shi
  • Publication number: 20050118616
    Abstract: The present disclosure relates to methods for amplifying nucleic acids and methods for detecting the amplified nucleic acid products. Nucleic acid amplification and detection can occur in solution or on a solid support.
    Type: Application
    Filed: August 9, 2004
    Publication date: June 2, 2005
    Inventors: Tadashi Kawashima, Erik Holmlin, Donald Crothers, Honghua Zhang, Chunnian Shi
  • Publication number: 20040086895
    Abstract: The present disclosure relates to the detection of somatic cell mutations, particularly as part of a method to screen for cancer or precancer. The disclosure includes techniques for extracting and isolating oligonucleotides from a patient and conducting hybridization assays. Preferred embodiments include a combination of the following steps: extracting a biological sample from a patient, purifying a nucleic acid from a biological sample, amplifying a nucleic acid, isolating a nucleic acid in single stranded form, cyclizing a nucleic acid, elongating a nucleic acid, controlling hybridization stringency, amplifying a nucleic acid on a chip, and detecting hybridization.
    Type: Application
    Filed: May 2, 2003
    Publication date: May 6, 2004
    Inventors: Donald M. Crothers, R. Erik Holmlin, Chunnian Shi
  • Publication number: 20040086894
    Abstract: The present disclosure provides methods and compositions for conducting an assay to detect nucleic acid hybridization in the presence of oxygen. In particular, ruthenium complexes having a reduction potential that does not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the nucleic acid hybridization event that is detected is DNA hybridization. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed.
    Type: Application
    Filed: May 2, 2003
    Publication date: May 6, 2004
    Inventors: Donald M. Crothers, R. Erik Holmlin, Honghua Zhang, Chunnian Shi