Patents by Inventor SUSANNE STRIEGLER

SUSANNE STRIEGLER 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: 11439993
    Abstract: Disclosed herein is a class of chiral binuclear metal complexes for stereoselective hydrolysis of saccharides and glycosides, and more particular chiral binuclear transition metal complex catalysts that discriminate epimeric glycosides and ?- and ?-glycosidic bonds of saccharides in aqueous solutions at near physiological pHs. The chiral binuclear metal complexes include a Schiff-base-type ligand derived from a chiral diamino building block, and a binuclear transition metal core, each which can be varied for selectivity. The metal core is a Lewis-acidic metal ion, such as copper, zinc, lanthanum, iron and nickel. The Schiff-base may be a reduced or non-reduced Schiff-base derived from aliphatic linear, aliphatic cyclic diamino alcohols or aromatic aldehydes. The ligand can be a penta- or heptadentate ligand derived from pyridinecarbaldehydes, benzaldehydes, linear or cyclic diamines or diamino alcohols.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: September 13, 2022
    Assignee: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventor: Susanne Striegler
  • Publication number: 20220125056
    Abstract: Disclosed herein are antimicrobial materials comprising a carbohydrate-templated microgel and a plurality of metal ions complexed thereto. The carbohydrate-templated microgel comprises a network copolymer molecule comprising a monoacrylate monomer, a crosslinking monomer, and a ligand monomer and wherein the microgel is prepared by the copolymerization of the monoacrylate monomer, the crosslinking monomer, and the ligand monomer in the presence of a carbohydrate or a carbohydrate derivative. The microgels have antimicrobial activity and allow for implementation of multiple, simultaneous mechanisms of antimicrobial action.
    Type: Application
    Filed: February 5, 2020
    Publication date: April 28, 2022
    Inventors: Susanne STRIEGLER, Babloo SHARMA
  • Publication number: 20210101138
    Abstract: Disclosed herein is a class of chiral binuclear metal complexes for stereoselective hydrolysis of saccharides and glycosides, and more particular chiral binuclear transition metal complex catalysts that discriminate epimeric glycosides and ?- and ?-glycosidic bonds of saccharides in aqueous solutions at near physiological pHs. The chiral binuclear metal complexes include a Schiff-base-type ligand derived from a chiral diamino building block, and a binuclear transition metal core, each which can be varied for selectivity. The metal core is a Lewis-acidic metal ion, such as copper, zinc, lanthanum, iron and nickel. The Schiff-base may be a reduced or non-reduced Schiff-base derived from aliphatic linear, aliphatic cyclic diamino alcohols or aromatic aldehydes. The ligand can be a penta- or heptadentate ligand derived from pyridinecarbaldehydes, benzaldehydes, linear or cyclic diamines or diamino alcohols.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 8, 2021
    Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventor: SUSANNE STRIEGLER
  • Patent number: 10870103
    Abstract: Disclosed herein is a class of chiral binuclear metal complexes for stereoselective hydrolysis of saccharides and glycosides, and more particular chiral binuclear transition metal complex catalysts that discriminate epimeric glycosides and ?- and ?-glycosidic bonds of saccharides in aqueous solutions at near physiological pHs. The chiral binuclear metal complexes include a Schiff-base-type ligand derived from a chiral diamino building block, and a binuclear transition metal core, each which can be varied for selectivity. The metal core is a Lewis-acidic metal ion, such as copper, zinc, lanthanum, iron and nickel. The Schiff-base may be a reduced or non-reduced Schiff-base derived from aliphatic linear, aliphatic cyclic diamino alcohols or aromatic aldehydes. The ligand can be a penta- or heptadentate ligand derived from pyridinecarbaldehydes, benzaldehydes, linear or cyclic diamines or diamino alcohols.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 22, 2020
    Assignee: Board of Trustees of the University of Arkansas
    Inventor: Susanne Striegler
  • Publication number: 20170275303
    Abstract: Disclosed herein is a class of chiral binuclear metal complexes for stereoselective glycoside hydrolysis of saccharides, and more particular chiral binuclear transition metal complex catalysts that discriminate epimeric glycosides and ?- and ?-glycosidic bonds of saccharides in aqueous solutions at near physiological pHs. The chiral binuclear metal complexes include a Schiff-base-type ligand derived from a chiral diamino building block, and a binuclear transition metal core, each which can be varied for selectivity. The metal core is a Lewis-acidic metal ion, such as copper, zinc, lanthanum, iron and nickel. The Schiff-base may be a reduced or non-reduced Schiff-base derived from aliphatic linear, aliphatic cyclic diamino alcohols or aromatic aldehydes. The ligand can be a penta- or heptadentate ligand derived from pyridinecarbaldehydes, benzaldehydes, linear or cyclic diamines or diamino alcohols.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 28, 2017
    Inventor: SUSANNE STRIEGLER