Patents by Inventor Xunyi Wu

Xunyi Wu 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: 20220162686
    Abstract: Disclosed herein is a membrane-based, in-gel loop-mediated isothermal amplification (LAMP) system, kit and method for detection of a target microorganism in a sample suspected of containing the microorganism. LAMP reagents, a lysing agent and a hydrogel are placed together on a filter membrane loaded with a pre-filtered sample. The hydrogel polymerizes over a short time to immobilize any target DNA/RNA particles on the membrane. The system may include a compact, portable device that integrates heat incubation and fluorescence illumination, and also a cloud-based smartphone image analysis application for quantitative results interpretation. If target DNA/RNA are present in the sample, fluorescent amplicons are produced as a result of LAMP reaction. The target microorganisms are detected by visually detecting the presence or absence of the amplicons.
    Type: Application
    Filed: October 22, 2021
    Publication date: May 26, 2022
    Inventors: Michael R. Hoffmann, Jing Li, Yanzhe Zhu, Xunyi Wu, Alan Yalun Gu, Leopold Dobelle, Clement A. Cid
  • Patent number: 10894254
    Abstract: A portable pathogen analysis system (PPAS) designed to detect microbial pathogens at the point-of-sample collection. The system comprises a concentration tube used for the concentration of microbes in large volumes of water samples using super absorbent polymer (SAP) beads and a hand-powered centrifuge; and a processing component, which functions as a portable lab-on-a-disc droplet digital nucleic acid amplification system, which integrates DNA extraction, nucleic acid amplification, and post-amplicon analysis in a single unit. The present invention provides a fast, cost-effective, and user-friendly solution for microbial water quality analysis in low-resource settings.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: January 19, 2021
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Sunny Jiang, Hamsa Gowda, Xiao Huang, Xunyi Wu, Marc Madou, Michael R. Hoffmann
  • Publication number: 20190105653
    Abstract: A portable pathogen analysis system (PPAS) designed to detect microbial pathogens at the point-of-sample collection. The system comprises a concentration tube used for the concentration of microbes in large volumes of water samples using super absorbent polymer (SAP) beads and a hand-powered centrifuge; and a processing component, which functions as a portable lab-on-a-disc droplet digital nucleic acid amplification system, which integrates DNA extraction, nucleic acid amplification, and post-amplicon analysis in a single unit. The present invention provides a fast, cost-effective, and user-friendly solution for microbial water quality analysis in low-resource settings.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Sunny Jiang, Hamsa Gowda, Xiao Huang, Xunyi Wu, Marc Madou, Michael R. Hoffmann