Patents by Inventor FOTOUH M. EL-DOIATY

FOTOUH M. EL-DOIATY 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 chitosan-coated magnetic nanoparticles for protein immobilization
    Patent number: 9999682
    Abstract: A method for preparing chitosan-coated magnetic nanoparticles for protein immobilization includes forming ferrous ferric oxide (Fe3O4) nanoparticles by co-precipitation and coating the nanoparticles with chitosan in the presence of glutaraldehyde. The Fe3O4 nanoparticles can be coated by dispersing ferrous ferric oxide (Fe3O4) nanoparticles into a solution comprising chitosan and acetic acid, adding a surfactant, adding excess 50% glutaraldehyde solution, and washing the nanoparticles with a solvent. The chitosan coated ferric oxide (Fe3O4) nanoparticles can be used to immobilize proteins or other biomolecules.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 19, 2018
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Jamal Sabir M. Sabir, Ahmed Atef Biomy, Fotouh M El-Doiaty, Sherif Edris, Nahid H. Hajrah, Osama A. Abuzinadah, Ahmed Bahieldin
  • METHOD FOR PREPARING CHITOSAN-COATED MAGNETIC NANOPARTICLES FOR PROTEIN IMMOBILIZATION
    Publication number: 20170182188
    Abstract: A method for preparing chitosan-coated magnetic nanoparticles for protein immobilization includes forming ferrous ferric oxide (Fe3O4) nanoparticles by co-precipitation and coating the nanoparticles with chitosan in the presence of glutaraldehyde. The Fe3O4 nanoparticles can be coated by dispersing ferrous ferric oxide (Fe3O4) nanoparticles into a solution comprising chitosan and acetic acid, adding a surfactant, adding excess 50% glutaraldehyde solution, and washing the nanoparticles with a solvent. The chitosan coated ferric oxide (Fe3O4) nanoparticles can be used to immobilize proteins or other biomolecules.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 29, 2017
    Inventors: JAMAL SABIR M. SABIR, AHMED ATEF BIOMY, FOTOUH M. EL-DOIATY, SHERIF EDRIS, NAHID H. HAJRAH, OSAMA A. ABUZINADAH, AHMED BAHIELDIN