Patents Assigned to The University of South Dakota
  • Patent number: 9700040
    Abstract: The invention relates to polymeric systems for stabilizing, storing and delivering hypohalide salts. One system consists of material coated with two layers: one prepared from polyethylene glycol epoxide and melamine solution and second prepared from inorganic hypohalide salt solution. The material can be fabric, cotton, bamboo, cellulosic materials, blend of cellulosic and synthetic fibers. Antimicrobial materials comprising this system are also described. Another system consists of material containing pre-formed spaces coated with water-polyethylene glycol solution of hypohalide salt and encapsulated by film forming polymer. Hypohalide salts within both systems are in some cases storage stable for at least three months.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 11, 2017
    Assignee: The University of South Dakota
    Inventors: Yuyu Sun, Zhengbing Cao, Simon Johnston
  • Patent number: 9515206
    Abstract: Electron-deficient fluorous porphyrin molecules may have dual functions of light harvesting and electron accepting or donating and may be ideally suited for use in organic solar cells. Methods of making electron-deficient fluorous porphyrin molecules are described.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: December 6, 2016
    Assignee: The University of South Dakota
    Inventor: Haoran Sun
  • Patent number: 9246105
    Abstract: Fluorinated aromatic materials, their synthesis and their use in optoelectronics. In some cases, the fluorinated aromatic materials are perfluoroalkylated aromatic materials that may include perfluoropolyether substituents.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 26, 2016
    Assignee: The University of South Dakota
    Inventor: Haoran Sun
  • Patent number: 9024094
    Abstract: Fluorinated aromatic materials, their synthesis and their use in optoelectronics. In some cases, the fluorinated aromatic materials are perfluoroalkylated aromatic materials that may include perfluoropolyether substituents.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: May 5, 2015
    Assignee: The University of South Dakota
    Inventor: Haoran Sun
  • Patent number: 8992223
    Abstract: Polymers and copolymers including a functional polymer component may be used as conventional denture materials. Antifungal materials may be releasably bound to the functional polymer component such that the antifungal materials may be slowly eluted over an extended period of time to combat a fungal infection.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: March 31, 2015
    Assignee: The University of South Dakota
    Inventors: Yuyu Sun, Zhengbing Cao, Xinbo Sun
  • Publication number: 20130299423
    Abstract: A new strategy to design container molecules is presented. Sulfonylcalix[4]arenes, which are synthetic macrocyclic containers, are used as building blocks that are combined with various metal ions and tricarboxylate ligands to construct metal-organic ‘super-containers’ (MOSCs). These MOSCs possess both endo and exo cavities and thus mimic the structure of viruses. The synthesis of MOSCs is highly modular, robust, and predictable.
    Type: Application
    Filed: April 15, 2013
    Publication date: November 14, 2013
    Applicant: University of South Dakota
    Inventor: University of South Dakota
  • Publication number: 20130206231
    Abstract: Electron-deficient fluorous porphyrin molecules may have dual functions of light harvesting and electron accepting or donating and may be ideally suited for use in organic solar cells. Methods of making electron-deficient fluorous porphyrin molecules are described.
    Type: Application
    Filed: August 25, 2011
    Publication date: August 15, 2013
    Applicant: The University of South Dakota
    Inventor: Haoran Sun
  • Publication number: 20130115259
    Abstract: The invention relates to polymeric systems for stabilizing, storing and delivering hypohalide salts. One system consists of material coated with two layers: one prepared from polyethylene glycol epoxide and melamine solution and second prepared from inorganic hypohalide salt solution. The material can be fabric, cotton, bamboo, cellulosic materials, blend of cellulosic and synthetic fibres. Antimicrobial materials comprising this system are also described. Another system consists of material containing pre-formed spaces coated with water-polyethylene glycol solution of hypohalide salt and encapsulated by film forming polymer. Hypohalide salts within both systems are in some cases storage stable for at least three months.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 9, 2013
    Applicant: THE UNIVERSITY OF SOUTH DAKOTA
    Inventors: Yuyu Sun, Zhengbing Cao, Simon Johnston
  • Publication number: 20130101963
    Abstract: Polymers and copolymers including a functional polymer component may be used as conventional denture materials. Antifungal materials may be releasably bound to the functional polymer component such that the antifungal materials may be slowly eluted over an extended period of time to combat a fungal infection.
    Type: Application
    Filed: February 18, 2011
    Publication date: April 25, 2013
    Applicant: THE UNIVERSITY OF SOUTH DAKOTA
    Inventor: Yuyu Sun
  • Publication number: 20120208989
    Abstract: Fluorinated aromatic materials, their synthesis and their use in optoelectronics. In some cases, the fluorinated aromatic materials are perfluoroalkylated aromatic materials that may include perfluoropolyether substituents.
    Type: Application
    Filed: August 20, 2010
    Publication date: August 16, 2012
    Applicant: THE UNIVERSITY OF SOUTH DAKOTA
    Inventor: Haoran Sun
  • Publication number: 20090324536
    Abstract: Biocidal compounds have been synthesized and tested. These biocidal compounds have broad-spectrum efficacy and their biocidal properties are easily renewable. Illustrative examples of these biocidal compounds include N-halamine monomers and polymers and silver sulfadiazine polymers. These compounds can be used to add biocidal function to various materials and articles.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 31, 2009
    Applicant: THE UNIVERSITY OF SOUTH DAKOTA
    Inventors: Yuyu Sun, Zhengbing Cao
  • Patent number: 7388125
    Abstract: The invention discloses a novel heat shock protein with high homology to chloroplast elongation factor EF-Tu. Also disclosed is a transgenic method for enhancing tolerance to heat and drought in female reproductive organs. It involves the temporal and spatial expression of novel heat shock EF-Tu in a plant organ or plant tissue. The invention also includes expression constructs, and methods for the production of crop plants with heritable phenotypes which are useful in breeding programs designed to increase heat and drought tolerance.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: June 17, 2008
    Assignees: Pioneer Hi-Bred International, Inc., The University of South Dakota
    Inventors: Zoran Ristic, Shailendra K. Bhadula, Genping Yang, Thomas E. Elthon, Jeffrey E. Habben