Patents by Inventor Danith H. Ly

Danith H. Ly 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: 10793605
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: October 6, 2020
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu
  • Publication number: 20200199600
    Abstract: A pair of pyrrole-imidazole polyamides conjugated with nucleic acid-based cooperation system is provided.
    Type: Application
    Filed: November 7, 2019
    Publication date: June 25, 2020
    Inventors: Wei-Che HSIEH, Danith H. LY, Hiroshi SUGIYAMA, Zutao YU
  • Publication number: 20200087350
    Abstract: Described herein are novel divalent nucleobases that each bind two nucleic acid strands, matched or mismatched when incorporated into a nucleic acid or nucleic acid analog backbone (a genetic recognition reagent, or genetic recognition reagent). In one embodiment, the genetic recognition reagent is a peptide nucleic acid (PNA) or gamma PNA (?PNA) oligomer. Uses of the divalent nucleobases and monomers and genetic recognition reagents containing the divalent nucleobases also are provided.
    Type: Application
    Filed: June 19, 2019
    Publication date: March 19, 2020
    Inventors: Danith H. Ly, Suresh Kumar Gopalsamy, Arunava Manna
  • Publication number: 20200024274
    Abstract: Described herein are divalent nucleobases that each binds two nucleic acid strands, matched or mismatched when incorporated into a nucleic acid or nucleic acid analog backbone, such as in a ?-peptide nucleic acid (?PNA). Also provided are genetic recognition reagents comprising one or more of the divalent nucleobases and a nucleic acid or nucleic acid analog backbone, such as a ?PNA backbone. Uses for the divalent nucleobases and monomers and genetic recognition reagents containing the divalent nucleobases also are provided.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 23, 2020
    Inventors: Danith H. Ly, Shivaji A. Thadke, Ali Nakhi, J. Dinithi Rashmini Perera
  • Publication number: 20190337986
    Abstract: Described herein are recognition modules that bind specifically to a template nucleic acid and which ligate together in a reducing environment to produce a gamma peptide nucleic acid (?PNA) oligomer. Also provided are methods of synthesizing a ?PNA oligomer on a template using the recognition modules.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 7, 2019
    Inventors: Danith H. Ly, Raman Bahal, Dinesh Chandra Bhunia, Yidan Cong, Arunava Manna, Srinivas Rapireddy
  • Publication number: 20190292227
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 26, 2019
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu
  • Patent number: 10370415
    Abstract: Described herein are novel divalent nucleobases that each bind two nucleic acid strands, matched or mismatched when incorporated into a nucleic acid or nucleic acid analog backbone (a genetic recognition reagent, or genetic recognition reagent). In one embodiment, the genetic recognition reagent is a peptide nucleic acid (PNA) or gamma PNA (?PNA) oligomer. Uses of the divalent nucleobases and monomers and genetic recognition reagents containing the divalent nucleobases also are provided.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: August 6, 2019
    Assignee: Carnegie Mellon University
    Inventors: Danith H. Ly, Suresh Kumar Gopalsamy, Arunava Manna
  • Patent number: 10364272
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: July 30, 2019
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu
  • Patent number: 10221216
    Abstract: Described herein are recognition modules that bind specifically to a template nucleic acid and which ligate together in a reducing environment to produce a gamma peptide nucleic acid (?PNA) oligomer. Also provided are methods of synthesizing a ?PNA oligomer on a template using the recognition modules.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: March 5, 2019
    Assignee: Carnegie Mellon University
    Inventors: Danith H. Ly, Raman Bahal, Arunava Manna, Dinesh Chandra Bhunia, Rapireddy Srinivas, Yidan Cong
  • Publication number: 20190062378
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Application
    Filed: September 27, 2018
    Publication date: February 28, 2019
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu
  • Patent number: 10160787
    Abstract: Described are ?-PNA monomers, methodology for synthesizing them, and methodology for synthesizing PNA oligomers that incorporate them.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 25, 2018
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu
  • Publication number: 20180291065
    Abstract: Described are ?-PNA monomers, methodology for synthesizing them, and methodology for synthesizing PNA oligomers that incorporate them.
    Type: Application
    Filed: May 7, 2018
    Publication date: October 11, 2018
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. LY, Srinivas RAPIREDDY, Bichismita SAHU
  • Patent number: 10093700
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: October 9, 2018
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu
  • Publication number: 20170283830
    Abstract: Compositions and methods for enhancing targeted gene editing and methods of use thereof are disclosed. In the most preferred embodiments, gene editing is carried out utilizing a gene editing composition such as triplex-forming oligonucleotides, CRISPR, zinc finger nucleases, TALENS, or others, in combination with a gene modification potentiating agent such as stem cell factor (SCF), a CHK1 or ATR inhibitor, or a combination thereof. A particular preferred gene editing composition is triplex-forming peptide nucleic acids (PNAs) substituted at the ? position for increased DNA binding affinity. Nanoparticle compositions for intracellular delivery of the gene editing composition are also provided and particular advantageous for use with in vivo applications.
    Type: Application
    Filed: February 16, 2017
    Publication date: October 5, 2017
    Inventors: W. Mark Saltzman, Peter Glazer, Raman Bahal, Nicole Ali McNeer, Danith H. Ly, Elias Quijano
  • Publication number: 20170058325
    Abstract: A method of making optically pure preparations of chiral ?PNA (gamma peptide nucleic acid) monomers is provided. Nano structures comprising chiral ?PNA structures also are provided. Methods of amplifying and detecting specific nucleic acids, including in situ methods are provided as well as compositions and kits useful in those methods. Lastly, methods of converting nucleobase sequences from right-handed helical PNA, nucleic acid and nucleic acid analog structures to left-handed ?PNA, and vice-versa, are provided.
    Type: Application
    Filed: May 8, 2015
    Publication date: March 2, 2017
    Inventors: Danith H. Ly, Wei-Che Hsieh, Iulia Sacui, Arunava Manna
  • Patent number: 9334496
    Abstract: A class of antisense agents having a distributed guanidinium peptide nucleic acids (GPNA) backbone which has excellent uptake into mammalian cells, can bind to the target DNA or RNA in a highly sequence specific manner and can resist nucleases and proteases both outside and inside the cell(s) of interest. In one embodiment, either systemic or intratumoral administration of antisense Epidermal Growth Factor Receptor (“EGFR”) GPNA oligonucleotides is believed to downmodulate EGFR levels, thus in turn to reduce head and neck squamous cell carcinoma tumor growth, which has been confirmed to date both in vitro and in vivo.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 10, 2016
    Assignees: EYE & EAR FOUNDATION, UNIVERSITY OF PITTSBURGH OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, CARNEGIE MELLON UNIVERSITY
    Inventors: Jennifer Rubin Grandis, Sufi Mary Thomas, Danith H. Ly
  • Publication number: 20160096867
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 7, 2016
    Applicant: CARNEGIE MELLON UNIVERSITY CENTER FOR TECHNOLOGY TRANSFER & ENTERPRISE
    Inventors: Danith H. LY, Srinivas RAPIREDDY, Bichismita SAHU
  • Publication number: 20160083433
    Abstract: Described herein are recognition modules that bind specifically to a template nucleic acid and which ligate together in a reducing environment to produce a gamma peptide nucleic acid (?PNA) oligomer. Also provided are methods of synthesizing a ?PNA oligomer on a template using the recognition modules.
    Type: Application
    Filed: April 11, 2014
    Publication date: March 24, 2016
    Applicant: Carnegie Mellon University
    Inventors: Danith H. Ly, Raman Bahal, Arunava Manna, Dinesh Chandra Bhunia, Srinivas Rapireddy, Yidan Cong
  • Publication number: 20160083434
    Abstract: Described herein are novel divalent nucleobases that each bind two nucleic acid strands, matched or mismatched when incorporated into a nucleic acid or nucleic acid analog backbone (a genetic recognition reagent, or genetic recognition reagent). In one embodiment, the genetic recognition reagent is a peptide nucleic acid (PNA) or gamma PNA (?PNA) oligomer. Uses of the divalent nucleobases and monomers and genetic recognition reagents containing the divalent nucleobases also are provided.
    Type: Application
    Filed: April 11, 2014
    Publication date: March 24, 2016
    Applicant: Carnegie Mellon University
    Inventors: Danith H. Ly, Suresh Kumar Gopalsamy, Arunava Manna
  • Patent number: 9193758
    Abstract: The present invention relates to ?-PNA monomers according to Formula I where substituent groups R1, R2, R3, R4, R5, R6, B and P are defined as set forth in the specification. The invention also provides methodology for synthesizing compounds according to Formula I and methodology for synthesizing PNA oligomers that incorporate one or more Formula I monomers.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: November 24, 2015
    Assignee: Carnegie Mellon University Center for Technology Transfer & Enterprise
    Inventors: Danith H. Ly, Srinivas Rapireddy, Bichismita Sahu