Patents by Inventor Junfeng ZAN

Junfeng ZAN 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).

  • Quaternary ammonium cyclodextrin and preparation method and uses thereof, and silver nanoparticle-cyclodextrin complex and preparation method and uses thereof
    Patent number: 12220463
    Abstract: The present invention provides a cationic ?-cyclodextrin and a preparation method and uses thereof, as well as a cationic ?-cyclodextrin functionalized silver nanoparticles and a preparation method and uses thereof. The cationic ?-cyclodextrin of the present invention is introduced with an amine group and quaternary ammonium groups, while retaining the special structure and properties of cyclodextrin itself. The amine group contained in the structure plays a role in reducing and complexing Ag+ in the synthesis of AgNPs, and plays a certain role in stabilizing nanoparticles and forming a complex in combination with quaternary ammonium groups.
    Type: Grant
    Filed: October 24, 2023
    Date of Patent: February 11, 2025
    Assignee: Hubei University of Chinese Medicine
    Inventors: Junfeng Liu, Junfeng Zan, Ping Wang, Guohua Zheng, Laichun Luo, Cong Chang, Ke Yang
  • QUATERNARY AMMONIUM CYCLODEXTRIN AND PREPARATION METHOD AND USES THEREOF, AND SILVER NANOPARTICLE-CYCLODEXTRIN COMPLEX AND PREPARATION METHOD AND USES THEREOF
    Publication number: 20240156983
    Abstract: The present invention provides quaternary ammonium cyclodextrin and a preparation method and uses thereof, as well as a silver nanoparticle-cyclodextrin complex and a preparation method and uses thereof. The quaternary ammonium cyclodextrin of the present invention is introduced with an amine group and quaternary ammonium groups, while retaining the special structure and properties of cyclodextrin itself. The amine group contained in the structure plays a role in reducing and complexing Ag+ in the synthesis of AgNPs, and plays a certain role in stabilizing nanoparticles and forming a complex in combination with quaternary ammonium groups.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 16, 2024
    Applicant: Hubei University of Chinese Medicine
    Inventors: Junfeng LIU, Junfeng ZAN, Ping WANG, Guohua ZHENG, Laichun LUO, Cong CHANG, Ke YANG