Patents by Inventor Sharif AHMED

Sharif AHMED 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).

  • Publication number: 20240150714
    Abstract: There is provided a device, system and method for recovering magnetically tagged target cells from a fluid collection of cells. The device comprises a magnet plate having an array of micro-magnets and a modular chip releasably coupled to the magnet plate. The modular chip has a flow chamber and a plurality of flow rate-reducing structures. The magnetic field produced by the array of micro-magnets cooperates with the flow rate-reducing structures to define a capture zone in the vicinity of each structure. The magnetic field is sufficient to overcome drag force on the target cells to promote capture of the target cells in the capture zone. Separation of the modular chip from the magnet plate allows for recovery of the captured target cells from the modular chip.
    Type: Application
    Filed: February 25, 2022
    Publication date: May 9, 2024
    Inventors: Shana Olwyn KELLEY, Zongjie WANG, Sharif AHMED
  • Publication number: 20230107004
    Abstract: A biosensor comprising an electrode and inverted molecular pendulums (iMPs) is described. Each IMP includes a linker bound to the electrode, and an analyte receptor and a redox reporter both bound to the linker. The redox reporter is reactive at positive potential when the linker presents a net negative charge and reactive at negative potential when the linker presents a net positive charge. Upon application of an electric field, the biosensor is characterized by an iMPs unbound state, where no analyte is bound to the receptor, at which the iMPs are displaced towards the electrode and electron transfer from the iMPs towards the electrode occurs at an unbound electron transfer rate, and an iMPs bound state, where the analyte is bound to the receptor, at which the iMPs are displaced towards the electrode and electron transfer from the iMPs towards the electrode occurs at a bound electron transfer rate.
    Type: Application
    Filed: March 2, 2021
    Publication date: April 6, 2023
    Inventors: Shana KELLEY, Edward SARGENT, Jagotamoy DAS, Surath GOMIS, Jenise B. CHEN, Sharif AHMED, Hanie YOUSEFI, Dingran CHANG, Alam MAHMUD