Patents by Inventor Fatemeh Davar

Fatemeh Davar 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 for preparing silica-dysprosium oxide core-shell nanoparticles
    Patent number: 8993057
    Abstract: Silica-dysprosium oxide core-shell nanoparticles and a method for preparing the silica-dysprosium oxide core-shell nanoparticles are disclosed. Initially, ethyl silicate, n-butanol, ethylenediamine, and distilled water are mixed in the presence of ultrasonic radiation to prepare silica nanoparticles. Then, the silica nanoparticles are isolated. Next, the isolated silica nanoparticles, an acid, n-butanol, and dysprosium oxide are mixed in the presence of ultrasonic radiation to prepare silica-dysprosium oxide core-shell nanoparticles. Finally, the silica-dysprosium oxide core-shell nanoparticles are isolated.
    Type: Grant
    Filed: October 22, 2011
    Date of Patent: March 31, 2015
    Inventors: Masoud Salavati-Niasari, Fatemeh Davar, Morteza Enhessari, Mohammad Javad Esfahani
  • METHOD FOR PREPARING SILICA-DYSPROSIUM OXIDE CORE-SHELL NANOPARTICLES
    Publication number: 20120034465
    Abstract: Silica-dysprosium oxide core-shell nanoparticles and a method for preparing the silica-dysprosium oxide core-shell nanoparticles are disclosed. Initially, ethyl silicate, n-butanol, ethylenediamine, and distilled water are mixed in the presence of ultrasonic radiation to prepare silica nanoparticles. Then, the silica nanoparticles are isolated. Next, the isolated silica nanoparticles, an acid, n-butanol, and dysprosium oxide are mixed in the presence of ultrasonic radiation to prepare silica-dysprosium oxide core-shell nanoparticles. Finally, the silica-dysprosium oxide core-shell nanoparticles are isolated.
    Type: Application
    Filed: October 22, 2011
    Publication date: February 9, 2012
    Inventors: Masoud Salavati-Niasari, Fatemeh Davar, Morteza Enhessari, Mohammad Javad Esfahani