Patents by Inventor Darrin J. Pochan

Darrin J. Pochan 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: 20200361996
    Abstract: Provided is a non-natural macromolecular assembly that includes at least two peptide bundles and at least one linker moiety covalently linking the peptide bundles. The assembly may be used, for example, in liquid crystal materials and fibers.
    Type: Application
    Filed: February 21, 2020
    Publication date: November 19, 2020
    Inventors: Darrin J. POCHAN, Christopher James Kloxin, Jeffery G. Saven, Dongdong Wu, Jose A. Villegas, Huixi Violet Zhang
  • Publication number: 20180267019
    Abstract: An assay mixture includes a hydrogel of a shear-thinning ?-hairpin peptide, a plurality of cells, and one or more predetermined compounds being investigated for ability to affect the growth, viability, reproduction characteristics, or activity of the cells. A high throughput screening device includes a plurality of sample wells adapted for high throughput screening, wherein each well contains the assay mixture. A method of using the high throughput screening device includes a) depositing in each of the wells a ?-hairpin hydrogel including the cells; depositing in at least some of the wells one or more of the compounds, either along with the ?-hairpin hydrogel or separately; and c) measuring the growth, viability, reproduction characteristics, or activity of the cells in each of the plurality of wells.
    Type: Application
    Filed: September 23, 2016
    Publication date: September 20, 2018
    Applicants: UNIVERSITY OF DELAWARE, THE NEMOURS FOUNDATION
    Inventors: Sigrid A. LANGHANS, Darrin J. POCHAN, Peter WORTHINGTON, Andrew D. NAPPER
  • Patent number: 8834926
    Abstract: A hydrogel for delayed release of an anionic macromolecule, wherein the hydrogel comprises the anionic macromolecule, 150 mM NaCl, and a peptide selected from the group consisting of SEQ ID NO:1 through SEQ ID NO:33 in an aqueous medium at a pH of 7.4; wherein the anionic macromolecule has an isoelectric point of at most 6.8; and wherein the hydrogel is capable of retaining at least 25% of the anionic macromolecule after 28-day extraction at 37° C. with a pH=7.4 BTP buffer containing 150 mM NaCl.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: September 16, 2014
    Assignee: University of Delaware
    Inventors: Joel P. Schneidér, Monica C. Branco, Darrin J. Pochan, Norman J. Wagner
  • Patent number: 8426559
    Abstract: A peptide comprising the sequence VKVKVRVKVDPPTKVKVRVKV-NH2 forms a hydrogel which has the ability to shear-thin and recover. The hydrogel, both before and after shear-thinning, is capable of killing bacteria, including methicillin-resistant Staphylococcus aureus (MRSA).
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: April 23, 2013
    Assignee: University of Delaware
    Inventors: Daphne A. Salick, Darrin J. Pochan, Joel P. Schneider
  • Patent number: 8221773
    Abstract: The present invention provides novel hydrogels and methods of making and using such hydrogels. The present invention provides hydrogels that may be formed by the self-assembly of peptides in solution. Such self-assembly may be brought about by a change in one or more characteristics of the solution. Characteristics of the solution that may be changed include pH, ionic strength, temperature, and concentration of one or more specific ions. In addition, hydrogels of the invention may be disassembled by changing one or more characteristic of the hydrogel such as pH, ionic strength, temperature, and concentration of one or more specific ions.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: July 17, 2012
    Assignee: University of Delaware
    Inventors: Joel P. Schneider, Darrin J. Pochan
  • Publication number: 20110171304
    Abstract: A peptide comprising the sequence VKVKVRVKVDPPTKVKVRVKV-NH2 forms a hydrogel which has the ability to shear-thin and recover. The hydrogel, both before and after shear-thinning, is capable of killing bacteria, including methicillin-resistant Staphylococcus aureus (MRSA).
    Type: Application
    Filed: March 24, 2010
    Publication date: July 14, 2011
    Applicant: University of Delaware
    Inventors: Daphne A. Salick, Darrin J. Pochan, Joel P. Schneider
  • Publication number: 20110052692
    Abstract: The present invention provides novel hydrogels and methods of making and using such hydrogels. The present invention provides hydrogels that may be formed by the self-assembly of peptides in solution. Such self-assembly may be brought about by a change in one or more characteristics of the solution. Characteristics of the solution that may be changed include pH, ionic strength, temperature, and concentration of one or more specific ions. In addition, hydrogels of the invention may be disassembled by changing one or more characteristic of the hydrogel such as pH, ionic strength, temperature, and concentration of one or more specific ions.
    Type: Application
    Filed: July 30, 2010
    Publication date: March 3, 2011
    Applicant: University of Delaware
    Inventors: Bulent Ozbas, Juliana Kretsinger, Lisa A. Butterick, Karthikan Rajagopal, Darrin J. Pochan, Joel P. Schneider
  • Patent number: 7884185
    Abstract: The present invention provides novel hydrogels and methods of making and using such hydrogels. The present invention provides hydrogels that may be formed by the self-assembly of peptides in solution. Such self-assembly may be brought about by a change in one or more characteristics of the solution. Characteristics of the solution that may be changed include pH, ionic strength, temperature, and concentration of one or more specific ions. In addition, hydrogels of the invention may be disassembled by changing one or more characteristic of the hydrogel such as pH, ionic strength, temperature, and concentration of one or more specific ions.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: February 8, 2011
    Assignee: University of Delaware
    Inventors: Joel P. Schneider, Darrin J. Pochan
  • Patent number: 7858585
    Abstract: The present invention provides novel hydrogels and methods of making and using such hydrogels. The present invention provides hydrogels that may be formed by the self-assembly of peptides in solution. Such self-assembly may be brought about by a change in one or more characteristics of the solution. Characteristics of the solution that may be changed include pH, ionic strength, temperature, and concentration of one or more specific ions. In addition, hydrogels of the invention may be disassembled by changing one or more characteristic of the hydrogel such as pH, ionic strength, temperature, and concentration of one or more specific ions.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 28, 2010
    Assignee: University of Delaware
    Inventors: Bulent Ozbas, Juliana Kretsinger, Lisa Ann Butterick, Karthikan Rajagopal, Darrin J. Pochan, Joel P. Schneider
  • Publication number: 20100034881
    Abstract: A hydrogel for delayed release of an anionic macromolecule, wherein the hydrogel comprises the anionic macromolecule, 150 mM NaCl, and a peptide selected from the group consisting of SEQ ID NO:1 through SEQ ID NO:33 in an aqueous medium at a pH of 7.4; wherein the anionic macromolecule has an isoelectric point of at most 6.8; and wherein the hydrogel is capable of retaining at least 25% of the anionic macromolecule after 28-day extraction at 37° C. with a pH=7.4 BTP buffer containing 150 mM NaCl.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 11, 2010
    Applicant: The University of Delaware
    Inventors: Joel P. Schneider, Monica C. Branco, Darrin J. Pochan, Norman J. Wagner
  • Publication number: 20090238788
    Abstract: A method for delivering ?-sheet peptide hydrogels to a target surface by shear-thinning and spraying the peptide hydrogel on the surface is provided. The ?-sheet peptide hydrogels can be applied over a range of thicknesses and can cover broad surface areas. The ?-sheet peptide hydrogels may also include a therapeutic agent.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 24, 2009
    Applicant: University of Delaware
    Inventors: Lisa A. Butterick, Darrin J. Pochan, Joel P. Schneider