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).

  • Patent number: 11491206
    Abstract: Embodiments of the present disclosure relate generally to the treatment of cancer involving activation of the tumor necrosis factor-related apoptosis inducing ligand receptor (TRAILR) pathway. In particular, the present disclosure provides compositions and methods for the identification of genes conferring TRAIL resistance, and the development of rational drug combinations targeting these genes. The therapeutic drug combinations of the present disclosure function synergistically to sensitize cancer cells to TRAIL-resistant cancers.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: November 8, 2022
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Kris Wood, Mandana Manzari
  • Patent number: 11467156
    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: Grant
    Filed: June 1, 2017
    Date of Patent: October 11, 2022
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Aaron Franklin, Benjamin Yellen, Angus Hucknall, Daniel Joh, Roozbeh Abedini-Nassab, Joseph Andrews
  • Patent number: 11458205
    Abstract: Provided herein are conjugates including a polypeptide and one or more drug molecules. The polypeptide includes one or more charged motifs, and may further include one or more uncharged motifs. The conjugates may be used to effectively deliver the drug molecule to a subject.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 4, 2022
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Samagya Banskota, Parisa Yousefpour, Jayanta Bhattacharyya
  • Publication number: 20220205917
    Abstract: A microarray chip imaging detector comprises a housing configured to receive a microarray chip. The detector includes a laser assembly supported by the housing and oriented at an angle relative to the microarray chip, the laser assembly configured to transmit an excitation beam along a first axis to samples on the microarray chip. The detector also includes a camera supported by the housing and positioned along a second axis, the camera configured to receive fluorescent light emitted from fluorophores in the samples on the microarray chip, the second axis oriented at an angle less than 30 degrees relative to the first axis. The housing includes a plurality of baffles positioned between the microarray chip and the camera, and a plurality of laser beamstops to receive the excitation beam reflected off the microarray chip.
    Type: Application
    Filed: May 2, 2020
    Publication date: June 30, 2022
    Inventors: Jason Liu, Ashutosh Chilkoti
  • Publication number: 20220120739
    Abstract: Disclosed herein are chips, devices, methods of making the same, and methods of detecting a target analyte, and methods of diagnosing an individual with a disease or condition when a target analyte associated with the disease or condition is detected.
    Type: Application
    Filed: November 8, 2021
    Publication date: April 21, 2022
    Inventors: Ashutosh Chilkoti, Angus Hucknall
  • Publication number: 20220098248
    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 16, 2021
    Publication date: March 31, 2022
    Inventors: Ashutosh Chilkoti, Nicholas Tang, Garrett Kelly
  • Patent number: 11268127
    Abstract: The presently disclosed subject matter relates to modular peptide-substrate protease assays, in particular low cost and reliable methodology for measurement of protease and other enzyme activity that may be detected by optical turbidimetry or visual observation. The presently disclosed subject matter also relates to methods of using the disclosed assays within methods of detecting and monitoring diseases, methods of drug discovery, as well as in detection devices and systems.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: March 8, 2022
    Assignee: Duke University
    Inventors: Gabriel P. Lopez, Ashutosh Chilkoti, Ali Ghoorchian, Felipe Garcia Quiroz
  • Patent number: 11249079
    Abstract: Disclosed are devices and methods for detecting analytes from a sample.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: February 15, 2022
    Assignee: SENTILUS HOLDCO, LLC
    Inventors: Ashutosh Chilkoti, Angus Hucknall
  • Publication number: 20220008567
    Abstract: Described herein are compositions for liquidly injectable, self-stabilizing biopolymers for the delivery of radionuclide brachytherapy. Also described herein are methods of using the compositions.
    Type: Application
    Filed: November 13, 2019
    Publication date: January 13, 2022
    Inventors: Ashutosh Chilkoti, Jeffrey L. Schaal, Wenge Liu
  • Patent number: 11169150
    Abstract: Disclosed herein are chips, devices, methods of making the same, and methods of detecting a target analyte, and methods of diagnosing an individual with a disease or condition when a target analyte associated with the disease or condition is detected.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 9, 2021
    Assignee: Sentilus Holdco LLC
    Inventors: Ashutosh Chilkoti, Angus Hucknall
  • Publication number: 20210340186
    Abstract: The invention relates to genetically encoded fusion proteins comprised of a capture component that binds a target with high affinity and a peptide polymer, such as elastin-like polypeptides, that display phase behavior and can be used for purification. The invention further relates to methods for optimizing capture fusion proteins for individual biologic targets such that phase separation occurs under desirable conditions, such as at room temperature, lower concentrations of salt, and/or at suitable pH ranges and optimized capture domains and polypeptides with phase behavior that have been identified by the optimization methods.
    Type: Application
    Filed: June 16, 2021
    Publication date: November 4, 2021
    Inventors: Kelli M. LUGINBUHL, Ashutosh CHILKOTI
  • Patent number: 11155584
    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: Grant
    Filed: September 22, 2017
    Date of Patent: October 26, 2021
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Nicholas Tang, Garrett Kelly
  • Publication number: 20210316007
    Abstract: Described herein are compositions that include an assembly of self-assembling conjugates. The self-assembling conjugates may include a polypeptide having a transition temperature (17) above 50° C. when the polypeptide is not attached to the conjugate, an albumin binding domain (ABD) attached to a first end of the polypeptide, and at least one molecule attached to a second end of the polypeptide through a cysteine group, wherein the molecule has an octanol-water distribution coefficient (log D) of greater than or equal to 1.5 at a pH of 7.4 when the molecule is not attached to the conjugate. Also described herein are methods of using the compositions.
    Type: Application
    Filed: September 6, 2019
    Publication date: October 14, 2021
    Inventors: Parisa Yousefpour, Ashutosh Chilkoti
  • Publication number: 20210309722
    Abstract: Disclosed herein are fusion proteins including an elastin-like peptide domain, a GLP-1 receptor agonist domain attached N to a N-terminal end of the ELP domain, and a FGF21 receptor agonist domain attached to the C-terminal end of the ELP domain. Also disclosed are methods of making the fusion proteins, compositions including a plurality of fusion proteins, and uses of the fusion proteins and compositions.
    Type: Application
    Filed: August 2, 2019
    Publication date: October 7, 2021
    Inventors: Ashutosh Chilkoti, Caslin Gilroy
  • Patent number: 11135301
    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: Grant
    Filed: September 14, 2017
    Date of Patent: October 5, 2021
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Jayanta Bhattacharyya
  • Patent number: 11130989
    Abstract: An article such as a biosensor having a nonfouling surface thereon is described. The article comprises: (a) a substrate having a surface portion; (b) a linking layer on the surface portion; (c) a polymer layer comprising brush molecules formed on the linking layer; and (d) optionally but preferably, a first member of a specific binding pair (e.g., a protein, peptide, antibody, nucleic acid, etc.) coupled to the brush molecules. The polymer layer is preferably formed by the process of surface-initiated polymerization (SIP) of monomeric units thereon. Preferably, each of the monomeric units comprises a monomer (for example, a vinyl monomer) core group having at least one protein-resistant head group coupled thereto, to thereby form the brush molecule on the surface portion. Methods of using the articles are also described.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: September 28, 2021
    Assignee: DUKE UNIVERSITY
    Inventor: Ashutosh Chilkoti
  • Patent number: 11130987
    Abstract: Disclosed herein are methods of detecting a target RNA, methods of diagnosing an individual with a disease or condition when a target RNA associated with the disease or condition is detected, and methods of conveying via a communication medium data from the detection of a target RNA.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: September 28, 2021
    Assignee: SENTILUS HOLDCO, LLC
    Inventors: Ashutosh Chilkoti, Srinath Rangarajan, Miriam Amiram, Angus Hucknall
  • Patent number: 11103558
    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: Grant
    Filed: December 19, 2019
    Date of Patent: August 31, 2021
    Assignee: Duke University
    Inventor: Ashutosh Chilkoti
  • Publication number: 20210261626
    Abstract: The invention relates to genetically encoded fusion proteins comprised of a capture component that binds a target with high affinity and a peptide polymer, such as elastin-like polypeptides, that display phase behavior and can be used for purification. The invention further relates to methods for optimizing capture fusion proteins for individual biologic targets such that phase separation occurs under desirable conditions, such as at room temperature, lower concentrations of salt, and/or at suitable pH ranges and optimized capture domains and polypeptides with phase behavior that have been identified by the optimization methods.
    Type: Application
    Filed: August 15, 2019
    Publication date: August 26, 2021
    Inventors: Kelli M. LUGINBUHL, Ashutosh CHILKOTI
  • Publication number: 20210154143
    Abstract: Disclosed herein are conjugates including a fatty acid, a self-assembly domain, and a polypeptide having 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: May 15, 2018
    Publication date: May 27, 2021
    Inventors: Ashutosh Chilkoti, Kelli Luginbuhl, Davoud Mozhdehi