Patents by Inventor Zecong Fang

Zecong Fang 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).

  • Patent number: 10900818
    Abstract: A fabric based digital droplet flowmetry (DDF) method and platform are provided utilizing a fluid collection network, a microfluidic junction for droplet formation and removal, and digital counting and measurement circuitry. The fluidic junction has a droplet emitter, such as a nozzle, and droplet receiver separated by a gap. The measurement circuitry detects the transient formation of a liquid bridge (the closed-circuit state) and the breakup of the bridge (the open-circuit state) as an electrical switching event. The duration of the bridge formation only lasts for a few milliseconds. The platform produces consistent droplet volume over varying flow rates and droplet size is controlled by the selection of structural parameters such as nozzle dimensions, channel geometries, surface wettability, and inlet/outlet pressures.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: January 26, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Tingrui Pan, Yahui Yang, Zecong Fang, Siyuan Xing, Ruya Li, Hong Liu
  • Publication number: 20200041319
    Abstract: A fabric based digital droplet flowmetry (DDF) method and platform are provided utilizing a fluid collection network, a microfluidic junction for droplet formation and removal, and digital counting and measurement circuitry. The fluidic junction has a droplet emitter, such as a nozzle, and droplet receiver separated by a gap. The measurement circuitry detects the transient formation of a liquid bridge (the closed-circuit state) and the breakup of the bridge (the open-circuit state) as an electrical switching event. The duration of the bridge formation only lasts for a few milliseconds. The platform produces consistent droplet volume over varying flow rates and droplet size is controlled by the selection of structural parameters such as nozzle dimensions, channel geometries, surface wettability, and inlet/outlet pressures.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 6, 2020
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Tingrui Pan, Yahui Yang, Zecong Fang, Siyuan Xing, Ruya Li, Hong Liu
  • Publication number: 20190311703
    Abstract: Hair cells are exquisitely sensitive to auditory stimuli, but also to damage from a variety of sources including noise trauma and ototoxic drugs. Mammals cannot regenerate cochlear hair cells, while non-mammalian vertebrates exhibit robust regenerative capacity. To allow for the effective examination of this process disclosed herein is a design and method of utilizing a device capable of inducing acoustic trauma in the larval lateral line. The device uses ultrasonic transducers to induce cavitation wherein microbubbles form in the fluid medium inside the container. These bubbles oscillate and then implode, sending shockwaves into the fluid inside the well-plate containing the fish. The device emits a broadband signal with peak sound energy in the low-frequency range below 200 Hz, consistent with the response range of the larval lateral line.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 10, 2019
    Inventors: Allison Coffin, Phillip Michael Uribe, Jie Xu, Zecong Fang