Patents by Inventor Celine Nayral

Celine Nayral 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).

  • METHOD OF MANUFACTURING SILICA-COATED METAL NANOPARTICLES
    Publication number: 20100304006
    Abstract: A method of producing silica-coated metal nanoparticles with at least one tetraalkoxysilane, from nanoparticles, referred to as metal nanoparticles, includes a quantity of at least one metal of zero oxidation state, a quantity of a catalytic hydrolysis composition, a quantity of liquid solvent medium and a quantity of water, so as to obtain a hydrolysis/condensation enabling the metal nanoparticles to be coated with silica, wherein the liquid solvent medium consists of at least one solvent chosen from the group formed by non-alcoholic organic solvents.
    Type: Application
    Filed: November 18, 2008
    Publication date: December 2, 2010
    Applicants: INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE TOULOUSE (I.N.S.A.T.), UNIVERSITE PAUL SABATIER (U.P.S.), CENTRE NATIONAL DELA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Fabien Delpech, Celine Nayral, Nancy El hawi
  • Method of forming metal colloids, metal colloids and method of forming a metal oxide sensitive layer for a chemical sensor device
    Patent number: 6395053
    Abstract: A method of forming a metal colloid comprising a plurality of particles, each particle comprising a core of a metal, is described. The method comprises the steps of providing an organometallic precursor comprising the metal, combining the organometallic precursor and a solvent, which comprises water molecules, heating the combination of organometallic precursor and solvent so that the organometallic precursor decomposes to form a solution including the metal colloid and by-products, and removing the by-products to provide the metal colloid.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: May 28, 2002
    Assignee: Motorola, Inc.
    Inventors: Pierre Fau, Celine Nayral, Bruno Chaudret, Andre Maisonnat