Patents by Inventor Ashutosh Chilkoti

Ashutosh Chilkoti 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: 20210128734
    Abstract: Described herein are thermally responsive polymer-therapeutic molecule conjugates comprising a therapeutic molecule conjugated to a thermally responsive polymer with an acrylate, methacrylate, acrylamide, and/or methacrylamide backbone and a plurality of oligoethylene glycol side chains.
    Type: Application
    Filed: April 30, 2019
    Publication date: May 6, 2021
    Inventors: Ashutosh Chilkoti, Imran Ozer
  • Publication number: 20210060171
    Abstract: Described herein are albumin binding peptide drug (AlBiPeD) conjugates comprising a small molecule linked to an albumin binding domain (ABD) via a pH-sensitive linker and methods of purifying and using the same.
    Type: Application
    Filed: January 25, 2019
    Publication date: March 4, 2021
    Inventors: Ashutosh Chilkoti, Parisa Yousefpour
  • Publication number: 20210046188
    Abstract: Disclosed herein are compositions and methods for reducing the antigenicity of molecules. The antigenicity of a molecule may be reduced or eliminated by conjugating at least one branched polymer to the molecule to form a molecule-polymer conjugate. The branched polymer may include a backbone and a plurality of side chains, each side chain covalently attached to the backbone.
    Type: Application
    Filed: September 9, 2020
    Publication date: February 18, 2021
    Inventors: Angus Hucknall, Ashutosh Chilkoti, Daniel Joh, Nancy J. Ganson, Yizhi Qi, Michael S. Hershfield
  • Publication number: 20210047520
    Abstract: An article having a nonfouling surface thereon is comprises: (a) a substrate having a surface portion; (b) a linking layer on the surface portion; and (c) a polymer layer formed on the linking layer, preferably by the process of surface-initiated polymerization of monomeric units thereon, with each of the monomeric units comprising a monomer core group having at least one protein-resistant head group coupled thereto, to thereby form a brush molecule on the surface portion. The brush molecule comprising a stem formed from the polymerization of the monomer core groups, and a plurality of branches formed from the hydrophilic head group projecting from the stem. Methods of making and using such articles, are also described.
    Type: Application
    Filed: March 17, 2020
    Publication date: February 18, 2021
    Inventors: Ashutosh CHILKOTI, Hongwei MA
  • Publication number: 20210009999
    Abstract: Compositions and methods disclosed herein can help provide improved delivery of non-natural therapeutic nucleotides for the treatment of diseases such as cancer. An example composition includes an assembly of amphiphilic polynucleotides, where each amphiphilic polynucleotide includes an aptamer portion, a first nucleotide portion, and a second nucleotide portion.
    Type: Application
    Filed: July 13, 2020
    Publication date: January 14, 2021
    Inventors: Ashutosh Chilkoti, Stefan Zauscher, Lei Tang, Sonal Deshpande
  • Publication number: 20210011014
    Abstract: An article such as a biomolecular detector or biosensor having a nonfouling surface thereon includes:(a) a substrate having a surface portion; (b) a linking layer on the surface portion; and (c) a polymer layer formed on the linking layer; and (d) a first member of a specific binding pair (e.g., a protein, peptide, antibody, nucleic acid, etc.) bound to the polymer layer. Methods of making and using the articles are also described.
    Type: Application
    Filed: July 27, 2020
    Publication date: January 14, 2021
    Inventors: Ashutosh CHILKOTI, Angus HUCKNALL
  • Publication number: 20200378916
    Abstract: Disclosed are sensors that include a carbon nanotube channel and a non-fouling polymer layer, where the non-fouling polymer layer and the carbon nanotube channel do not directly contact each other and are separated by a dielectric layer. The disclosed sensors may be used, e.g., as biosensors for the accurate and sensitive detection of analytes within a sample. Also disclosed are methods of making and using the sensors.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 3, 2020
    Inventors: Ashutosh Chilkoti, Aaron Franklin, Benjamin Yellen, Angus Hucknall, Daniel Joh, Roozbeh Abedini-Nassab, Joseph Andrews
  • Publication number: 20200282022
    Abstract: The present invention provides therapeutic agents and compositions comprising elastin-like peptides (ELPs) and therapeutic proteins. In some embodiments, the therapeutic protein is a GLP-1 receptor agonist, insulin, or Factor VII/VIIa, including functional analogs. The present invention further provides encoding polynucleotides, as well as methods of making and using the therapeutic agents. The therapeutic agents have improvements in relation to their use as therapeutics, including, inter alia, one or more of half-life, clearance and/or persistance in the body, solubility, and bioavailability.
    Type: Application
    Filed: December 19, 2019
    Publication date: September 10, 2020
    Inventor: Ashutosh CHILKOTI
  • Publication number: 20200276553
    Abstract: Nano- to microscale liquid coacervate particles are provided. The liquid coacervate particles are produced by a process including stimulating a population of liquid droplets containing one or a mixture of components to induce a phase separation point of a first component, and maintaining stimulation at the phase separation point to form a coacervate domain of the first component within each of the droplets to form the liquid coacervate particles. The self-assembled nano, meso, micro and macro liquid coacervate particles and related coated substrates can have utility in drug delivery, bioanalytical systems, controlled cell culture, tissue engineering, biomanufacturing and drug discovery.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 3, 2020
    Inventors: Gabriel P. Lopez, Joseph R. Simon, Nick J. Carroll, Ashutosh Chilkoti
  • Publication number: 20200164082
    Abstract: Described herein are compositions that may include a triblock self-assembling polypeptide and a molecule attached to the polypeptide. Also described herein are methods of making the compositions and methods of using the compositions.
    Type: Application
    Filed: September 14, 2017
    Publication date: May 28, 2020
    Inventors: Ashutosh Chilkoti, Jayanta Bhattacharyya
  • Publication number: 20200148724
    Abstract: Disclosed herein are partially ordered polypeptides, which include a plurality of disordered domains and a plurality of structured domains. The partially ordered polypeptides may have phase transition behavior and form aggregates at, above, or below certain temperatures. Further provided are cellular scaffolds comprised of the partially ordered polypeptides.
    Type: Application
    Filed: June 29, 2018
    Publication date: May 14, 2020
    Inventors: Ashutosh Chilkoti, Stefan Roberts
  • Patent number: 10596230
    Abstract: The present invention provides therapeutic agents and compositions comprising elastin-like peptides (ELPs) and therapeutic proteins. In some embodiments, the therapeutic protein is a GLP-1 receptor agonist, insulin, or Factor VII/VIIa, including functional analogs. The present invention further provides encoding polynucleotides, as well as methods of making and using the therapeutic agents. The therapeutic agents have improvements in relation to their use as therapeutics, including, inter alia, one or more of half-life, clearance and/or persistence in the body, solubility, and bioavailability.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 24, 2020
    Assignee: DUKE UNIVERSITY
    Inventor: Ashutosh Chilkoti
  • Publication number: 20200023083
    Abstract: Provided herein are methods of enhancing in vivo efficacy of an active agent, comprising: administering to a subject an active agent that is coupled to a bioelastic polymer or elastin-like peptide, wherein the in vivo efficacy of the active agent is enhanced as compared to the same active agent when administered to the subject not coupled to (or not associated with) a bioelastic polymer or ELP.
    Type: Application
    Filed: February 28, 2019
    Publication date: January 23, 2020
    Inventor: Ashutosh Chilkoti
  • Publication number: 20200017557
    Abstract: Described herein are unstructured polypeptides lacking any discernible repeat motif. Also described herein are fusion proteins including at least one of the unstructured polypeptides and at least one binding polypeptide. Further described are methods for treating a disease in a subject in need thereof. The methods may include administering to the subject an effective amount of the fusion protein.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 16, 2020
    Applicant: Duke University
    Inventors: Ashutosh CHILKOTI, Nicholas TANG, Garrett KELLY
  • Publication number: 20190391141
    Abstract: Disclosed are devices and methods for detecting analytes from a sample.
    Type: Application
    Filed: April 17, 2019
    Publication date: December 26, 2019
    Inventors: Ashutosh Chilkoti, Angus Hucknall
  • Publication number: 20190345228
    Abstract: Provided herein are fusion proteins including at least one binding polypeptide and at least one unstructured polypeptide. The fusion protein may further include at least one linker. Further provided are methods for determining the presence of a target in a sample, methods of treating a disease, methods of diagnosing a disease in a subject, and methods of determining the effectiveness of a treatment for a disease in a subject. The methods may include administering to the subject an effective amount of the fusion protein.
    Type: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Inventors: Ashutosh Chilkoti, Mandana Manzari, Mareva Fevre
  • Publication number: 20190328662
    Abstract: Disclosed herein are conjugates including a fatty acid, a self-assembly domain, and a polypeptide, where the conjugates have phase transition behavior. Further disclosed are methods of using the conjugates to treat disease, methods of delivering an agent, and methods of preparing the conjugates.
    Type: Application
    Filed: January 12, 2018
    Publication date: October 31, 2019
    Inventors: Ashutosh Chilkoti, Davoud Mozhdehi, Kelli M. Luginbuhl
  • Publication number: 20190285623
    Abstract: An article such as a biomolecular detector or biosensor having a nonfouling surface thereon includes: (a) a substrate having a surface portion; (b) a linking layer on the surface portion; and (c) a polymer layer formed on the linking layer; and (d) a first member of a specific binding pair (e.g., a protein, peptide, antibody, nucleic acid, etc.) bound to the polymer layer. Methods of making and using the articles are also described.
    Type: Application
    Filed: March 27, 2019
    Publication date: September 19, 2019
    Inventors: Ashutosh Chilkoti, Angus Hucknall
  • Patent number: 10392611
    Abstract: Disclosed herein are compositions and methods for reducing the antigenicity of molecules, wherein the molecule comprises a uricase. The antigenicity of a molecule may be reduced or eliminated by conjugating at least one branched polymer to the molecule to form a molecule-polymer conjugate. The branched polymer may include a backbone and a plurality of side chains, each side chain covalently attached to the backbone.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 27, 2019
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Yizhi Qi, Michael S. Hershfield, Nancy J. Ganson
  • Patent number: 10385115
    Abstract: Provided herein are fusion proteins including at least one binding polypeptide and at least one unstructured polypeptide. The fusion protein may further include at least one linker. Further provided are methods for determining the presence of a target in a sample, methods of treating a disease, methods of diagnosing a disease in a subject, and methods of determining the effectiveness of a treatment for a disease in a subject. The methods may include administering to the subject an effective amount of the fusion protein.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: August 20, 2019
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Mandana Manzari, Mareva Fevre