Patents by Inventor SAHAR HASIM

SAHAR HASIM 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).

  • Two-dimensional-material-based field-effect transistor for detection of pathogens and methods for manufacturing
    Patent number: 12123845
    Abstract: In at least one illustrative embodiment, a field-effect transistor biosensor for detection of a pathogen includes a substrate and a channel formed from a two-dimensional monolayer or few-layer metal chalcogenide that is functionalized with a biorecognition element. The biorecognition element may be an antibody, such as an antibody for the SARS-CoV-2 spike protein. A method for manufacturing the biosensor includes depositing an amorphous two-dimensional material on the substrate with pulsed laser ablation, crystallizing the amorphous two-dimensional material to generate a two-dimensional monolayer coupled to the substrate, and activating a surface of the two-dimensional material with the biorecognition element after crystallizing the amorphous two-dimensional material. The composition of the two-dimensional material may be tuned. The substrate may be photolithographically patterned. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: October 22, 2024
    Assignees: AUBURN UNIVERSITY, MERCER UNIVERSITY
    Inventors: Masoud Mahjouri-Samani, Michael C. Hamilton, Marcelo Kuroda, Sahar Hasim, Parvin Fathi-Hafshejani
  • TWO-DIMENSIONAL-MATERIAL-BASED FIELD-EFFECT TRANSISTOR FOR DETECTION OF PATHOGENS AND METHODS FOR MANUFACTURING
    Publication number: 20220146451
    Abstract: In at least one illustrative embodiment, a field-effect transistor biosensor for detection of a pathogen includes a substrate and a channel formed from a two-dimensional monolayer or few-layer metal chalcogenide that is functionalized with a biorecognition element. The biorecognition element may be an antibody, such as an antibody for the SARS-CoV-2 spike protein. A method for manufacturing the biosensor includes depositing an amorphous two-dimensional material on the substrate with pulsed laser ablation, crystallizing the amorphous two-dimensional material to generate a two-dimensional monolayer coupled to the substrate, and activating a surface of the two-dimensional material with the biorecognition element after crystallizing the amorphous two-dimensional material. The composition of the two-dimensional material may be tuned. The substrate may be photolithographically patterned. Other embodiments are described and claimed.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 12, 2022
    Inventors: MASOUD MAHJOURI-SAMANI, MICHAEL C. HAMILTON, MARCELO KURODA, SAHAR HASIM, PARVIN FATHI-HAFSHEJANI