Patents by Inventor Delia Jane Milliron

Delia Jane Milliron 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 chemical modification of nanocrystals
    Patent number: 9595363
    Abstract: Nanocrystals comprising organic ligands at surfaces of the plurality of nanocrystals are provided. The organic ligands are removed from the surfaces of the nanocrystals using a solution comprising a trialkyloxonium salt in a polar aprotic solvent. The removal of the organic ligands causes the nanocrystals to become naked nanocrystals with cationic surfaces.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: March 14, 2017
    Assignee: The Regents of the University of California
    Inventors: Brett Anthony Helms, Delia Jane Milliron, Evelyn Louise Rosen, Raffaella Buonsanti, Anna Llordes
  • SURFACE CHEMICAL MODIFICATION OF NANOCRYSTALS
    Publication number: 20140158950
    Abstract: Nanocrystals comprising organic ligands at surfaces of the plurality of nanocrystals are provided. The organic ligands are removed from the surfaces of the nanocrystals using a solution comprising a trialkyloxonium salt in a polar aprotic solvent. The removal of the organic ligands causes the nanocrystals to become naked nanocrystals with cationic surfaces.
    Type: Application
    Filed: November 12, 2013
    Publication date: June 12, 2014
    Applicant: The Regents of The University of California
    Inventors: Brett Anthony Helms, Delia Jane Milliron, Evelyn Louise Rosen, Raffaella Buonsanti, Anna Llordes
  • Method for forming and aligning chemically mediated dispersion of magnetic nanoparticles in a polymer
    Patent number: 7854878
    Abstract: A method including providing Au-doped Co nanoparticles. The nanoparticles include a combination of non-ferromagnetic nanoparticles and weakly ferromagnetic nanoparticles. The nanoparticles each have an exterior surface. The surfaces of the nanoparticles are functionalized with 7-(5-uracil-ylcarbamoyl)heptanoic acid. A polymer is provided having a general formula including a uracil group. A dispersion is formed by agitating a solution of the nanoparticles. The solution is spin cast into a film. The film is heated under vacuum at a first temperature, TFM, resulting in inducing ferromagnetism in the non-ferromagnetic nanoparticles and converting the non-ferromagnetic nanoparticles to ferromagnetic nanoparticles, and resulting in enhancing ferromagnetism in the weakly ferromagnetic nanoparticles. The nanoparticles are aligned such that magnetic easy axes of the nanoparticles are oriented by applying a magnetic field to the dispersion while at a second temperature less than TFM.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: December 21, 2010
    Assignee: International Business Machines Corporation
    Inventors: James Lupton Hedrick, Delia Jane Milliron, Alshakim Nelson, Russell Clayton Pratt
  • METHOD FOR FORMING AND ALIGNING CHEMICALLY MEDIATED DISPERSION OF MAGNETIC NANOPARTICLES IN A POLYMER
    Publication number: 20090184445
    Abstract: A method. The method includes providing Au-doped Co nanoparticles. The nanoparticles include a combination of non-ferromagnetic nanoparticles and weakly ferromagnetic nanoparticles. The nanoparticles each have an exterior surface. The surfaces of the nanoparticles are functionalized with 7-(5-uracil-ylcarbamoyl)heptanoic acid. A polymer is provided having a general formula including a uracil group. A dispersion is formed by agitating a solution of the nanoparticles. The solution is spin cast into a film. The film is heated under vacuum at a first temperature, TFM, resulting in inducing ferromagnetism in the non-ferromagnetic nanoparticles and converting the non-ferromagnetic nanoparticles to ferromagnetic nanoparticles, and resulting in enhancing ferromagnetism in the weakly ferromagnetic nanoparticles. The nanoparticles are aligned such that magnetic easy axes of the nanoparticles are oriented by applying a magnetic field to the dispersion while at a second temperature less than TFM.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 23, 2009
    Inventors: James Lupton Hedrick, Delia Jane Milliron, Alshakim Nelson, Russell Clayton Pratt