Patents by Inventor Yihua Loo

Yihua Loo 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: 20220127565
    Abstract: There is provided a self-assembly amphiphilic peptide having the formula (I): XYZ (I), wherein X is a polar moiety at the N-terminus; X and Z each independently has between 1 to 4 residues of aliphatic amino acids or analogs or derivatives thereof, and wherein the average degree of hydrophobicity of the residues in block Z is more than the average degree of hydrophobicity of the residues in block Y. Disclosed are compositions and hydrogel comprising the peptide thereof. Also disclosed are methods of treatment for tissue regeneration, wound healing and methods of culture of stem cells, tissues and organoids.
    Type: Application
    Filed: February 7, 2020
    Publication date: April 28, 2022
    Inventors: Yihua Loo, Chwee Aun Andrew Wan, Chih Urn Benjamin Tai
  • Patent number: 10449257
    Abstract: The present invention relates to composite hydrogels comprising at least one non-peptidic polymer and at least one peptide having the general formula: Z—(X)m—(Y)n—Z?p, wherein Z is an N-terminal protecting group; X is, at each occurrence, independently selected from an aliphatic amino acid, an aliphatic amino acid derivative and a glycine; Y is, at each occurrence, independently selected from a polar amino acid and a polar amino acid derivative; Z? is a C-terminal protecting group; m is an integer selected from 2 to 6; n is selected from 1 or 2; and p is selected from 0 or 1. The present invention further relates to methods of producing the composite hydrogels, to uses of the composite hydrogels for the delivery of drugs and other bioactive agents/moieties, as an implant or injectable agent that facilitates tissue regeneration, and as a topical agent for wound healing.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: October 22, 2019
    Assignee: Agency for Science, Technology and Research
    Inventors: Charlotte Hauser, Yihua Loo, Andrew C. A. Wan, Michael Reithofer
  • Patent number: 10179194
    Abstract: The present invention relates to the use of peptides, peptoids and/or peptidomimetics capable of self-assembling and forming a (nanofibrous) hydrogel in biofabrication. The present invention further relates to methods for preparing hydrogels and to methods for preparing continuous fibres and to methods for obtaining multi-cellular constructs with defined, precise geometrics. The present invention further relates to various uses of such hydrogels for obtaining mini-hydrogel arrays and 3D organoid structures or 3D macromolecular biological constructs.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: January 15, 2019
    Assignee: Agency for Science, Technology and Research
    Inventors: Charlotte Hauser, Yihua Loo
  • Publication number: 20180016304
    Abstract: The present invention relates to ultrashort depsipeptides which are capable of self-assembling into hydrogels. One preferred embodiment is of Ac-ILVaGK-NH2, where a represents lactic acid. The invention also relates to the use of these depsipeptides in formulating hydrogels, co-gels or co-hydrogels, and pharmaceutical compositions or biomedical device or surgical implants or kits comprising these depsipeptides for various therapeutic applications such as regenerative medicine, tissue regeneration and tissue re-placement.
    Type: Application
    Filed: March 3, 2016
    Publication date: January 18, 2018
    Applicant: Agency for Science, Technology and Research
    Inventors: Charlotte A. E. Hauser, Michael R. Reithofer, Yihua Loo
  • Publication number: 20170002041
    Abstract: The present invention relates to hydrophobic peptides and/or peptidomimetics capable of forming a (nanofibrous) hydrogel and hydrogels comprising said hydrophobic peptides and/or peptidomimetics and to various uses, such as in regenerative medicine, injectable therapies, delivery of bioactive moieties, wound healing, 2D and 3D synthetic cell culture substrate, biosensor development, biofunctionalized surfaces, and biofabrication.
    Type: Application
    Filed: November 28, 2014
    Publication date: January 5, 2017
    Applicant: Agency for Science, Technology and Research
    Inventors: Charlotte Hauser, Yihua Loo
  • Publication number: 20160375177
    Abstract: The present invention relates to the use of peptides, peptoids and/or peptidomimetics capable of self-assembling and forming a (nanofibrous) hydrogel in biofabrication. The present invention further relates to methods for preparing hydrogels and to methods for preparing continuous fibres and to methods for obtaining multi-cellular constructs with defined, precise geometrics. The present invention further relates to various uses of such hydrogels for obtaining mini-hydrogel arrays and 3D organoid structures or 3D macromolecular biological constructs.
    Type: Application
    Filed: December 1, 2014
    Publication date: December 29, 2016
    Applicant: Agency for Science, Technology and Research
    Inventors: Charlotte HAUSER, Yihua LOO
  • Patent number: 9120841
    Abstract: The present invention provides an amphiphilic linear peptide and/or peptoid as well as a hydrogel that includes the amphiphilic linear peptide/peptoid.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: September 1, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Charlotte Hauser, Yihua Loo
  • Publication number: 20140349933
    Abstract: The present invention relates to composite hydrogels comprising at least one non-peptidic polymer and at least one peptide having the general formula: Z—(X)m—(Y)n—Z?p, wherein Z is an N-terminal protecting group; X is, at each occurrence, independently selected from an aliphatic amino acid, an aliphatic amino acid derivative and a glycine; Y is, at each occurrence, independently selected from a polar amino acid and a polar amino acid derivative; Z? is a C-terminal protecting group; m is an integer selected from 2 to 6; n is selected from 1 or 2; and p is selected from 0 or 1. The present invention further relates to methods of producing the composite hydrogels, to uses of the composite hydrogels for the delivery of drugs and other bioactive agents/moieties, as an implant or injectable agent that facilitates tissue regeneration, and as a topical agent for wound healing.
    Type: Application
    Filed: November 5, 2012
    Publication date: November 27, 2014
    Applicant: Agency for Science, Technology and Research
    Inventors: Charlotte Hauser, Yihua Loo, Andrew C.A. Wan, Michael Reithofer
  • Publication number: 20140093473
    Abstract: The present invention provides an amphiphilic linear peptide and/or peptoid as well as a hydrogel that includes the amphiphilic linear peptide/peptoid.
    Type: Application
    Filed: December 31, 2012
    Publication date: April 3, 2014
    Inventors: Charlotte Hauser, Yihua Loo