Patents by Inventor Igor Y. Denisyuk

Igor Y. Denisyuk 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).

  • Surface modified nanoparticle and method of preparing same
    Patent number: 7405001
    Abstract: The present disclosure relates to a nanoparticle containing at least one metal sulfide nanocrystal having a surface modified with a carboxylic acid, wherein the carboxylic acid has at least one aryl group. The present disclosure also describes a method of preparing the nanoparticle, the method consisting of: (a) providing a first solution having a first organic solvent, and a non-alkali metal salt and a carboxylic acid dissolved therein, wherein the carboxylic acid has at least one aryl group; (b) providing a sulfide material; and (c) combining the first solution and the sulfide material to form a reaction solution, thereby forming a nanoparticle containing at least one metal sulfide nanocrystal having a surface modified with the carboxylic acid, wherein the carboxylic acid has at least one aryl group.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: July 29, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Igor Y. Denisyuk, Todd R. Williams
  • Surface modified nanoparticle and method of preparing same
    Patent number: 7364716
    Abstract: The present disclosure relates to a nanoparticle containing at least one metal sulfide nanocrystal having a surface modified with a carboxylic acid, wherein the carboxylic acid has at least one aryl group. The present disclosure also describes a method of preparing the nanoparticle, the method consisting of: (a) providing a first solution having a first organic solvent, and a non-alkali metal salt and a carboxylic acid dissolved therein, wherein the carboxylic acid has at least one aryl group; (b) providing a sulfide material; and (c) combining the first solution and the sulfide material to form a reaction solution, thereby forming a nanoparticle containing at least one metal sulfide nanocrystal having a surface modified with the carboxylic acid, wherein the carboxylic acid has at least one aryl group.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: April 29, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Igor Y. Denisyuk, Todd R. Williams
  • Methods of preparing polymer nanocomposite having surface modified nanoparticles
    Patent number: 7172811
    Abstract: The present disclosure provides a method of preparing a nanocomposite: (a) providing a first solution having a first organic solvent comprising a non-alkali metal salt, a carboxylic acid comprising at least one aryl group, and a polymer dissolved therein; (b) providing a sulfide material; (c) combining the first solution and the sulfide material; and (d) isolating the nanocomposite, wherein the nanocomposite comprises the polymer and a plurality of nanoparticles, wherein each nanoparticle comprises at least one metal sulfide nanocrystal having a surface modified with the carboxylic acid comprising at least one aryl group. The present disclosure also provides the nanocomposites and articles prepared therefrom.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: February 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Igor Y. Denisyuk, Todd R. Williams